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https://plus.google.com/107325400416152343773 Luis Dillenburg : Lives and Deaths of Sibling Stars In this striking new image from ESO’s La Silla Observatory in Chile...
Lives and Deaths of Sibling Stars

In this striking new image from ESO’s La Silla Observatory in Chile young stars huddle together against a backdrop of clouds of glowing gas and lanes of dust. The star cluster, known as NGC 3293, would have been just a cloud of gas and dust itself about ten million years ago, but as stars began to form it became the bright group of stars we see here. Clusters like this are celestial laboratories that allow astronomers to learn more about how stars evolve.

This beautiful star cluster, NGC 3293, is found 8000 light-years from Earth in the constellation of Carina (The Keel). This cluster was first spotted by the French astronomer Nicolas-Louis de Lacaille in 1751, during his stay in what is now South Africa, using a tiny telescope with an aperture of just 12 millimetres. It is one of the brightest clusters in the southern sky and can be easily seen with the naked eye on a dark clear night.

Star clusters like NGC 3293 contain stars that all formed at the same time, at the same distance from Earth and out of the same cloud of gas and dust, giving them the same chemical composition. As a result clusters like this are ideal objects for testing stellar evolution theory.

Most of the stars seen here are very young, and the cluster itself is less than 10 million years old. Just babies on cosmic scales if you consider that the Sun is 4.6 billion years old and still only middle-aged. An abundance of these bright, blue, youthful stars is common in open clusters like NGC 3293, and, for example, in the better known Kappa Crucis cluster, otherwise known as the Jewel Box or NGC 4755.

These open clusters each formed from a giant cloud of molecular gas and their stars are held together by their mutual gravitational attraction. But these forces are not enough to hold a cluster together against close encounters with other clusters and clouds of gas as the cluster’s own gas and dust dissipates. So, open clusters will only last a few hundred million years, unlike their big cousins, the globular clusters, which can survive for billions of years, and hold on to far more stars.

Despite some evidence suggesting that there is still some ongoing star formation in NGC 3293, it is thought that most, if not all, of the nearly fifty stars in this cluster were born in one single event. But even though these stars are all the same age, they do not all have the dazzling appearance of a star in its infancy; some of them look positively elderly, giving astronomers the chance to explore how and why stars evolve at different speeds.

Take the bright orange star at the bottom right of the cluster. This huge star, a red giant, would have been born as one of the biggest and most luminous of its litter, but bright stars burn out fast. As the star used up the fuel at its core its internal dynamics changed and it began to swell and cool, becoming the red giant we now observe. Red giants are reaching the end of their life cycle, but this red giant’s sister stars are still in what is known as the pre-main-sequence — the period before the long, stable, middle period in a star’s life. We see these stars in the prime of their life as hot, bright and white against the red and dusty background.

This image was taken with the Wide Field Imager (WFI) installed on the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in northern Chile.

http://www.eso.org/public/news/eso1422/
https://lh4.googleusercontent.com/-9k0VpwrGU0w/U8_ZH5yFBqI/AAAAAAAAJHU/JS7pD3Ts_mw/w506-h750/id36657.jpg
1 day ago - Via Reshared Post - View -
https://plus.google.com/117575128130041498548 Henrrique Melo : Lives and Deaths of Sibling Stars In this striking new image from ESO’s La Silla Observatory in Chile...
Lives and Deaths of Sibling Stars

In this striking new image from ESO’s La Silla Observatory in Chile young stars huddle together against a backdrop of clouds of glowing gas and lanes of dust. The star cluster, known as NGC 3293, would have been just a cloud of gas and dust itself about ten million years ago, but as stars began to form it became the bright group of stars we see here. Clusters like this are celestial laboratories that allow astronomers to learn more about how stars evolve.

This beautiful star cluster, NGC 3293, is found 8000 light-years from Earth in the constellation of Carina (The Keel). This cluster was first spotted by the French astronomer Nicolas-Louis de Lacaille in 1751, during his stay in what is now South Africa, using a tiny telescope with an aperture of just 12 millimetres. It is one of the brightest clusters in the southern sky and can be easily seen with the naked eye on a dark clear night.

Star clusters like NGC 3293 contain stars that all formed at the same time, at the same distance from Earth and out of the same cloud of gas and dust, giving them the same chemical composition. As a result clusters like this are ideal objects for testing stellar evolution theory.

Most of the stars seen here are very young, and the cluster itself is less than 10 million years old. Just babies on cosmic scales if you consider that the Sun is 4.6 billion years old and still only middle-aged. An abundance of these bright, blue, youthful stars is common in open clusters like NGC 3293, and, for example, in the better known Kappa Crucis cluster, otherwise known as the Jewel Box or NGC 4755.

These open clusters each formed from a giant cloud of molecular gas and their stars are held together by their mutual gravitational attraction. But these forces are not enough to hold a cluster together against close encounters with other clusters and clouds of gas as the cluster’s own gas and dust dissipates. So, open clusters will only last a few hundred million years, unlike their big cousins, the globular clusters, which can survive for billions of years, and hold on to far more stars.

Despite some evidence suggesting that there is still some ongoing star formation in NGC 3293, it is thought that most, if not all, of the nearly fifty stars in this cluster were born in one single event. But even though these stars are all the same age, they do not all have the dazzling appearance of a star in its infancy; some of them look positively elderly, giving astronomers the chance to explore how and why stars evolve at different speeds.

Take the bright orange star at the bottom right of the cluster. This huge star, a red giant, would have been born as one of the biggest and most luminous of its litter, but bright stars burn out fast. As the star used up the fuel at its core its internal dynamics changed and it began to swell and cool, becoming the red giant we now observe. Red giants are reaching the end of their life cycle, but this red giant’s sister stars are still in what is known as the pre-main-sequence — the period before the long, stable, middle period in a star’s life. We see these stars in the prime of their life as hot, bright and white against the red and dusty background.

This image was taken with the Wide Field Imager (WFI) installed on the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in northern Chile.

http://www.eso.org/public/news/eso1422/
https://lh4.googleusercontent.com/-9k0VpwrGU0w/U8_ZH5yFBqI/AAAAAAAAJHU/JS7pD3Ts_mw/w506-h750/id36657.jpg
1 day ago - Via Community - View -
https://plus.google.com/101439246099764156415 Vijay Patel : Star Coupling in Ahmedabad, Star Coupling in Gujarat, Flat Pulley in Ahmedabad, Flat Pulley in Gujarat...
Star Coupling in Ahmedabad, Star Coupling in Gujarat, Flat Pulley in Ahmedabad, Flat Pulley in Gujarat
Aster seismology permits demanding tests of stellar models and may give correct basic properties of individual stars. For solar-type stars on the most sequence, the discovered oscillations area unit p-modes, that the restoring force arises from the pressure gradient. This area unit more or less often spaced in frequency, following closely the questionable straight line relation. Hare Krishna Enterprise For Star Coupling in Ahmedabad, Star Coupling in Gujarat, Flat Pulley in Ahmedabad, Flat Pulley in Gujarat.

However, the oscillations of post-main-sequence stars show departures from this regularity that's thanks to the presence of mixed modes. In general, stars have mixed ℓ = one modes whereas still on the most sequence. However, these occur at low frequencies that lie outside the envelope of discernible modes. Mode bumping solely starts to be detectable once a star has entered the sub giant section. Hare Krishna Enterprise For Star Coupling in Ahmedabad, Star Coupling in Gujarat, Flat Pulley in Ahmedabad, Flat Pulley in Gujarat.

As mentioned within the introduction, every avoided crossing is related to a g-mode unfreeze within the core of the star. The γ-mode frequencies increase because the star evolves and that we tracked every one. As further avoided crossings appeared at low frequency, they were additionally incorporated into Equation. During this method, the stellar model was followed throughout a big a part of the sub giant section, as shown within the H-R diagram in Figure two. Toward the top of this section, the frequency patterns became too complicated too few modes between every avoided crossing and a stable match were tough to get. we tend to secured reliable results for models with up to 3discernible avoided crossings, every of them characterized by its frequency , and its coupling strength. Hare Krishna Enterprise For Star Coupling in Ahmedabad, Star Coupling in Gujarat, Flat Pulley in Ahmedabad, Flat Pulley in Gujarat.

http://www.harekrishnaenterprise.in/Flat_Pulley.php
2 days ago - Via Google+ - View -
https://plus.google.com/116810876478632968898 Chau Tu : Life Cycle of a Star Stars begin their lives as clouds of dust and gas called nebulae. The gravity ...
Life Cycle of a Star

Stars begin their lives as clouds of dust and gas called nebulae. The gravity of a passing star or the shock wave from a nearby supernova may cause the nebula to contract. Matter in the gas cloud will begin to coalesce into a dense region called a protostar. As the protostar continues to condense, it heats up. Eventually, it reaches a critical mass and nuclear fusion begins. This begins the main sequence phase of the star. It will spend most of its life in this stable phase. The life span of a star depends on its size. Very large, massive stars burn their fuel much faster than smaller stars. Their main sequence may last only a few hundred thousand years. Smaller stars will live on for billions of years because they burn their fuel much more slowly. Eventually, the star's fuel will begin to run out. It will expand into what is known as a red giant. Massive stars will become red supergiants. This phase will last until the star exhausts its remaining fuel. At this point, the pressure of the nuclear reaction is not strong enough to equalize the force of gravity and the star will collapse. Most average stars will blow away their outer atmospheres to form a planetary nebula. Their cores will remain behind and burn as a white dwarf until they cool down. What will be left is a dark ball of matter known as a black dwarf. If the star is massive enough, the collapse will trigger a violent explosion known as a supernova. If the remaining mass of the star is about 1.4 times that of our Sun, the core is unable to support itself and it will collapse further to become a neutron star. The matter inside the star will be compressed so tightly that its atoms are compacted into a dense shell of neutrons. If the remaining mass of the star is more than about three times that of the Sun, it will collapse so completely that it will literally disappear from the universe. What is left behind is an intense region of gravity called a black hole.

Source:http://www.enchantedlearning.com/subjects/astronomy/stars/lifecycle/

Image: http://www.seasky.org/
https://lh5.googleusercontent.com/-zBgMs7zGrok/U42Vn_GYXcI/AAAAAAAABK0/x9dqTOSb9_s/w506-h750/Image+Sea+and+Sky.jpg
11 days ago - Via Reshared Post - View -
https://plus.google.com/105696067718987448195 Mary D. Williams : Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W The ‘Pillars of Creation’,...
Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W

The ‘Pillars of Creation’, an image made with the Hubble Space Telescope in 1995, is one of the most famous astronomical views. It shows how ‘elephant trunks’ of cooler interstellar gas are eroded by the intense radiation and winds from nearby massive stars.

Now Scott Balfour, an astronomer at Cardiff University, has run a new simulation where similar structures appear with a remarkably close appearance to their real life counterparts. He also suggests that the stars that make these structures are of little help in forming new siblings. On Thursday 26 June Scott presented his results in a talk at the National Astronomy Meeting in Portsmouth.

The massive O-type stars, more than 16 times as ‘heavy’ as our Sun, have short but dramatic lives. During their most stable phase on the so-called main sequence, they have surface temperatures of more than 30,000 degrees Celsius (on the Sun the surface is about 5500 degrees), are strong sources of ultraviolet light and emit copious material in a powerful wind.
 
All of this shapes their surroundings. The O-type stars heat any interstellar gas in their vicinity, creating bubbles which act like snow ploughs sweeping up surrounding colder material. In these regions, where gas is compressed, large numbers of new stars are seen forming so many scientists argue that the O stars drive star formation.
 
In his new work, Scott has tried to test this idea by simulating the way the gas behaves over a period of 1.6 million years, a simulation that took several weeks of computing time to calculate. His model explored what would happen when a massive star forms in a smooth cloud of gas that is already collapsing under its own weight.
 
A movie of the simulation, showing how the cloud collapses and forms ‘elephant trunks’ and bright rims over 1.6 million years. 

More http://b4in.org/j55W
https://lh4.googleusercontent.com/-oa1-Emmu0bc/U64rV43iXUI/AAAAAAABemg/OdBIa1Tw-sU/w506-h750/Balfour_pillars_HST.jpg
11 days ago - Via Reshared Post - View -
https://plus.google.com/110147573521108363519 Arianna Soloperto : Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W The ‘Pillars of Creation’,...
Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W

The ‘Pillars of Creation’, an image made with the Hubble Space Telescope in 1995, is one of the most famous astronomical views. It shows how ‘elephant trunks’ of cooler interstellar gas are eroded by the intense radiation and winds from nearby massive stars.

Now Scott Balfour, an astronomer at Cardiff University, has run a new simulation where similar structures appear with a remarkably close appearance to their real life counterparts. He also suggests that the stars that make these structures are of little help in forming new siblings. On Thursday 26 June Scott presented his results in a talk at the National Astronomy Meeting in Portsmouth.

The massive O-type stars, more than 16 times as ‘heavy’ as our Sun, have short but dramatic lives. During their most stable phase on the so-called main sequence, they have surface temperatures of more than 30,000 degrees Celsius (on the Sun the surface is about 5500 degrees), are strong sources of ultraviolet light and emit copious material in a powerful wind.
 
All of this shapes their surroundings. The O-type stars heat any interstellar gas in their vicinity, creating bubbles which act like snow ploughs sweeping up surrounding colder material. In these regions, where gas is compressed, large numbers of new stars are seen forming so many scientists argue that the O stars drive star formation.
 
In his new work, Scott has tried to test this idea by simulating the way the gas behaves over a period of 1.6 million years, a simulation that took several weeks of computing time to calculate. His model explored what would happen when a massive star forms in a smooth cloud of gas that is already collapsing under its own weight.
 
A movie of the simulation, showing how the cloud collapses and forms ‘elephant trunks’ and bright rims over 1.6 million years. 

More http://b4in.org/j55W
https://lh4.googleusercontent.com/-oa1-Emmu0bc/U64rV43iXUI/AAAAAAABemg/OdBIa1Tw-sU/w506-h750/Balfour_pillars_HST.jpg
12 days ago - Via Reshared Post - View -
https://plus.google.com/110147573521108363519 Arianna Soloperto : Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W The ‘Pillars of Creation’,...
Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W

The ‘Pillars of Creation’, an image made with the Hubble Space Telescope in 1995, is one of the most famous astronomical views. It shows how ‘elephant trunks’ of cooler interstellar gas are eroded by the intense radiation and winds from nearby massive stars.

Now Scott Balfour, an astronomer at Cardiff University, has run a new simulation where similar structures appear with a remarkably close appearance to their real life counterparts. He also suggests that the stars that make these structures are of little help in forming new siblings. On Thursday 26 June Scott presented his results in a talk at the National Astronomy Meeting in Portsmouth.

The massive O-type stars, more than 16 times as ‘heavy’ as our Sun, have short but dramatic lives. During their most stable phase on the so-called main sequence, they have surface temperatures of more than 30,000 degrees Celsius (on the Sun the surface is about 5500 degrees), are strong sources of ultraviolet light and emit copious material in a powerful wind.
 
All of this shapes their surroundings. The O-type stars heat any interstellar gas in their vicinity, creating bubbles which act like snow ploughs sweeping up surrounding colder material. In these regions, where gas is compressed, large numbers of new stars are seen forming so many scientists argue that the O stars drive star formation.
 
In his new work, Scott has tried to test this idea by simulating the way the gas behaves over a period of 1.6 million years, a simulation that took several weeks of computing time to calculate. His model explored what would happen when a massive star forms in a smooth cloud of gas that is already collapsing under its own weight.
 
A movie of the simulation, showing how the cloud collapses and forms ‘elephant trunks’ and bright rims over 1.6 million years. 

More http://b4in.org/j55W
https://lh4.googleusercontent.com/-oa1-Emmu0bc/U64rV43iXUI/AAAAAAABemg/OdBIa1Tw-sU/w506-h750/Balfour_pillars_HST.jpg
12 days ago - Via Reshared Post - View -
https://plus.google.com/102240887940317394649 Nuno Reis : Two terrified women record a huge, silent, triangular or boomerang shaped craft with highly irregular...
Two terrified women record a huge, silent, triangular or boomerang shaped craft with highly irregular lighting pattern (November 13, 2007)

I drew attention to this particular piece of footage when I posted my special report "Giant Black Triangles: Ours or Theirs?" It was recorded by two women returning from a road trip about 60 miles north of Bakersfield, California in November of 2007. The footage depicts a very slow moving, very large and silent craft with an extremely unusual lighting configuration (non FAA standard for certain). Their reaction to this craft in the video clearly shows that they are highly disturbed, even frightened by this UFO. The video above shows the main sequence of events, but the full 16 minutes of raw footage can be downloaded from this source-> http://goo.gl/m0xVqo
Watch the video: Triangle UFO 60 Miles North of Bakersfield 11/13/07
https://lh4.googleusercontent.com/proxy/LV9NN088jnU_M4-tf_RM3Zhb1ySXw2bwIFtibBG7h_ZEEB5DWEj66kW0W-ZakQ4xSl5QxqpopJ_z6H9WeOY2zA=w506-h379
Here is the Full 16 minutes of the sighting, click 'Download Original' on the right side: http://www.divshare.com/download/2846017-063
12 days ago - Via Community - View -
https://plus.google.com/103701274087690304436 lan nguyyen : Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W The ‘Pillars of Creation’,...
Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W

The ‘Pillars of Creation’, an image made with the Hubble Space Telescope in 1995, is one of the most famous astronomical views. It shows how ‘elephant trunks’ of cooler interstellar gas are eroded by the intense radiation and winds from nearby massive stars.

Now Scott Balfour, an astronomer at Cardiff University, has run a new simulation where similar structures appear with a remarkably close appearance to their real life counterparts. He also suggests that the stars that make these structures are of little help in forming new siblings. On Thursday 26 June Scott presented his results in a talk at the National Astronomy Meeting in Portsmouth.

The massive O-type stars, more than 16 times as ‘heavy’ as our Sun, have short but dramatic lives. During their most stable phase on the so-called main sequence, they have surface temperatures of more than 30,000 degrees Celsius (on the Sun the surface is about 5500 degrees), are strong sources of ultraviolet light and emit copious material in a powerful wind.
 
All of this shapes their surroundings. The O-type stars heat any interstellar gas in their vicinity, creating bubbles which act like snow ploughs sweeping up surrounding colder material. In these regions, where gas is compressed, large numbers of new stars are seen forming so many scientists argue that the O stars drive star formation.
 
In his new work, Scott has tried to test this idea by simulating the way the gas behaves over a period of 1.6 million years, a simulation that took several weeks of computing time to calculate. His model explored what would happen when a massive star forms in a smooth cloud of gas that is already collapsing under its own weight.
 
A movie of the simulation, showing how the cloud collapses and forms ‘elephant trunks’ and bright rims over 1.6 million years. 

More http://b4in.org/j55W
https://lh4.googleusercontent.com/-oa1-Emmu0bc/U64rV43iXUI/AAAAAAABemg/OdBIa1Tw-sU/w506-h750/Balfour_pillars_HST.jpg
12 days ago - Via Reshared Post - View -
https://plus.google.com/105573384601674166909 Milay valdez : Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W The ‘Pillars of Creation’,...
Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W

The ‘Pillars of Creation’, an image made with the Hubble Space Telescope in 1995, is one of the most famous astronomical views. It shows how ‘elephant trunks’ of cooler interstellar gas are eroded by the intense radiation and winds from nearby massive stars.

Now Scott Balfour, an astronomer at Cardiff University, has run a new simulation where similar structures appear with a remarkably close appearance to their real life counterparts. He also suggests that the stars that make these structures are of little help in forming new siblings. On Thursday 26 June Scott presented his results in a talk at the National Astronomy Meeting in Portsmouth.

The massive O-type stars, more than 16 times as ‘heavy’ as our Sun, have short but dramatic lives. During their most stable phase on the so-called main sequence, they have surface temperatures of more than 30,000 degrees Celsius (on the Sun the surface is about 5500 degrees), are strong sources of ultraviolet light and emit copious material in a powerful wind.
 
All of this shapes their surroundings. The O-type stars heat any interstellar gas in their vicinity, creating bubbles which act like snow ploughs sweeping up surrounding colder material. In these regions, where gas is compressed, large numbers of new stars are seen forming so many scientists argue that the O stars drive star formation.
 
In his new work, Scott has tried to test this idea by simulating the way the gas behaves over a period of 1.6 million years, a simulation that took several weeks of computing time to calculate. His model explored what would happen when a massive star forms in a smooth cloud of gas that is already collapsing under its own weight.
 
A movie of the simulation, showing how the cloud collapses and forms ‘elephant trunks’ and bright rims over 1.6 million years. 

More http://b4in.org/j55W
https://lh4.googleusercontent.com/-oa1-Emmu0bc/U64rV43iXUI/AAAAAAABemg/OdBIa1Tw-sU/w506-h750/Balfour_pillars_HST.jpg
12 days ago - Via Reshared Post - View -
https://plus.google.com/106045034752703957585 John single : Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W The ‘Pillars of Creation’,...
Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W

The ‘Pillars of Creation’, an image made with the Hubble Space Telescope in 1995, is one of the most famous astronomical views. It shows how ‘elephant trunks’ of cooler interstellar gas are eroded by the intense radiation and winds from nearby massive stars.

Now Scott Balfour, an astronomer at Cardiff University, has run a new simulation where similar structures appear with a remarkably close appearance to their real life counterparts. He also suggests that the stars that make these structures are of little help in forming new siblings. On Thursday 26 June Scott presented his results in a talk at the National Astronomy Meeting in Portsmouth.

The massive O-type stars, more than 16 times as ‘heavy’ as our Sun, have short but dramatic lives. During their most stable phase on the so-called main sequence, they have surface temperatures of more than 30,000 degrees Celsius (on the Sun the surface is about 5500 degrees), are strong sources of ultraviolet light and emit copious material in a powerful wind.
 
All of this shapes their surroundings. The O-type stars heat any interstellar gas in their vicinity, creating bubbles which act like snow ploughs sweeping up surrounding colder material. In these regions, where gas is compressed, large numbers of new stars are seen forming so many scientists argue that the O stars drive star formation.
 
In his new work, Scott has tried to test this idea by simulating the way the gas behaves over a period of 1.6 million years, a simulation that took several weeks of computing time to calculate. His model explored what would happen when a massive star forms in a smooth cloud of gas that is already collapsing under its own weight.
 
A movie of the simulation, showing how the cloud collapses and forms ‘elephant trunks’ and bright rims over 1.6 million years. 

More http://b4in.org/j55W
https://lh4.googleusercontent.com/-oa1-Emmu0bc/U64rV43iXUI/AAAAAAABemg/OdBIa1Tw-sU/w506-h750/Balfour_pillars_HST.jpg
12 days ago - Via Reshared Post - View -
https://plus.google.com/116026142203501643310 Roshan Kuat : Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W The ‘Pillars of Creation’,...
Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W

The ‘Pillars of Creation’, an image made with the Hubble Space Telescope in 1995, is one of the most famous astronomical views. It shows how ‘elephant trunks’ of cooler interstellar gas are eroded by the intense radiation and winds from nearby massive stars.

Now Scott Balfour, an astronomer at Cardiff University, has run a new simulation where similar structures appear with a remarkably close appearance to their real life counterparts. He also suggests that the stars that make these structures are of little help in forming new siblings. On Thursday 26 June Scott presented his results in a talk at the National Astronomy Meeting in Portsmouth.

The massive O-type stars, more than 16 times as ‘heavy’ as our Sun, have short but dramatic lives. During their most stable phase on the so-called main sequence, they have surface temperatures of more than 30,000 degrees Celsius (on the Sun the surface is about 5500 degrees), are strong sources of ultraviolet light and emit copious material in a powerful wind.
 
All of this shapes their surroundings. The O-type stars heat any interstellar gas in their vicinity, creating bubbles which act like snow ploughs sweeping up surrounding colder material. In these regions, where gas is compressed, large numbers of new stars are seen forming so many scientists argue that the O stars drive star formation.
 
In his new work, Scott has tried to test this idea by simulating the way the gas behaves over a period of 1.6 million years, a simulation that took several weeks of computing time to calculate. His model explored what would happen when a massive star forms in a smooth cloud of gas that is already collapsing under its own weight.
 
A movie of the simulation, showing how the cloud collapses and forms ‘elephant trunks’ and bright rims over 1.6 million years. 

More http://b4in.org/j55W
https://lh4.googleusercontent.com/-oa1-Emmu0bc/U64rV43iXUI/AAAAAAABemg/OdBIa1Tw-sU/w506-h750/Balfour_pillars_HST.jpg
12 days ago - Via Reshared Post - View -
https://plus.google.com/104800782383264891384 ngo minh Tuan : Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W The ‘Pillars of Creation’,...
Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W

The ‘Pillars of Creation’, an image made with the Hubble Space Telescope in 1995, is one of the most famous astronomical views. It shows how ‘elephant trunks’ of cooler interstellar gas are eroded by the intense radiation and winds from nearby massive stars.

Now Scott Balfour, an astronomer at Cardiff University, has run a new simulation where similar structures appear with a remarkably close appearance to their real life counterparts. He also suggests that the stars that make these structures are of little help in forming new siblings. On Thursday 26 June Scott presented his results in a talk at the National Astronomy Meeting in Portsmouth.

The massive O-type stars, more than 16 times as ‘heavy’ as our Sun, have short but dramatic lives. During their most stable phase on the so-called main sequence, they have surface temperatures of more than 30,000 degrees Celsius (on the Sun the surface is about 5500 degrees), are strong sources of ultraviolet light and emit copious material in a powerful wind.
 
All of this shapes their surroundings. The O-type stars heat any interstellar gas in their vicinity, creating bubbles which act like snow ploughs sweeping up surrounding colder material. In these regions, where gas is compressed, large numbers of new stars are seen forming so many scientists argue that the O stars drive star formation.
 
In his new work, Scott has tried to test this idea by simulating the way the gas behaves over a period of 1.6 million years, a simulation that took several weeks of computing time to calculate. His model explored what would happen when a massive star forms in a smooth cloud of gas that is already collapsing under its own weight.
 
A movie of the simulation, showing how the cloud collapses and forms ‘elephant trunks’ and bright rims over 1.6 million years. 

More http://b4in.org/j55W
https://lh4.googleusercontent.com/-oa1-Emmu0bc/U64rV43iXUI/AAAAAAABemg/OdBIa1Tw-sU/w506-h750/Balfour_pillars_HST.jpg
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https://plus.google.com/107500849651527921356 hone honag : Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W The ‘Pillars of Creation’,...
Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W

The ‘Pillars of Creation’, an image made with the Hubble Space Telescope in 1995, is one of the most famous astronomical views. It shows how ‘elephant trunks’ of cooler interstellar gas are eroded by the intense radiation and winds from nearby massive stars.

Now Scott Balfour, an astronomer at Cardiff University, has run a new simulation where similar structures appear with a remarkably close appearance to their real life counterparts. He also suggests that the stars that make these structures are of little help in forming new siblings. On Thursday 26 June Scott presented his results in a talk at the National Astronomy Meeting in Portsmouth.

The massive O-type stars, more than 16 times as ‘heavy’ as our Sun, have short but dramatic lives. During their most stable phase on the so-called main sequence, they have surface temperatures of more than 30,000 degrees Celsius (on the Sun the surface is about 5500 degrees), are strong sources of ultraviolet light and emit copious material in a powerful wind.
 
All of this shapes their surroundings. The O-type stars heat any interstellar gas in their vicinity, creating bubbles which act like snow ploughs sweeping up surrounding colder material. In these regions, where gas is compressed, large numbers of new stars are seen forming so many scientists argue that the O stars drive star formation.
 
In his new work, Scott has tried to test this idea by simulating the way the gas behaves over a period of 1.6 million years, a simulation that took several weeks of computing time to calculate. His model explored what would happen when a massive star forms in a smooth cloud of gas that is already collapsing under its own weight.
 
A movie of the simulation, showing how the cloud collapses and forms ‘elephant trunks’ and bright rims over 1.6 million years. 

More http://b4in.org/j55W
https://lh4.googleusercontent.com/-oa1-Emmu0bc/U64rV43iXUI/AAAAAAABemg/OdBIa1Tw-sU/w506-h750/Balfour_pillars_HST.jpg
12 days ago - Via Reshared Post - View -
https://plus.google.com/109635328239830207963 My Tram : Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W The ‘Pillars of Creation’,...
Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W

The ‘Pillars of Creation’, an image made with the Hubble Space Telescope in 1995, is one of the most famous astronomical views. It shows how ‘elephant trunks’ of cooler interstellar gas are eroded by the intense radiation and winds from nearby massive stars.

Now Scott Balfour, an astronomer at Cardiff University, has run a new simulation where similar structures appear with a remarkably close appearance to their real life counterparts. He also suggests that the stars that make these structures are of little help in forming new siblings. On Thursday 26 June Scott presented his results in a talk at the National Astronomy Meeting in Portsmouth.

The massive O-type stars, more than 16 times as ‘heavy’ as our Sun, have short but dramatic lives. During their most stable phase on the so-called main sequence, they have surface temperatures of more than 30,000 degrees Celsius (on the Sun the surface is about 5500 degrees), are strong sources of ultraviolet light and emit copious material in a powerful wind.
 
All of this shapes their surroundings. The O-type stars heat any interstellar gas in their vicinity, creating bubbles which act like snow ploughs sweeping up surrounding colder material. In these regions, where gas is compressed, large numbers of new stars are seen forming so many scientists argue that the O stars drive star formation.
 
In his new work, Scott has tried to test this idea by simulating the way the gas behaves over a period of 1.6 million years, a simulation that took several weeks of computing time to calculate. His model explored what would happen when a massive star forms in a smooth cloud of gas that is already collapsing under its own weight.
 
A movie of the simulation, showing how the cloud collapses and forms ‘elephant trunks’ and bright rims over 1.6 million years. 

More http://b4in.org/j55W
https://lh4.googleusercontent.com/-oa1-Emmu0bc/U64rV43iXUI/AAAAAAABemg/OdBIa1Tw-sU/w506-h750/Balfour_pillars_HST.jpg
12 days ago - Via Reshared Post - View -
https://plus.google.com/101213265178409528946 Francesca Volpe : Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W The ‘Pillars of Creation’,...
Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W

The ‘Pillars of Creation’, an image made with the Hubble Space Telescope in 1995, is one of the most famous astronomical views. It shows how ‘elephant trunks’ of cooler interstellar gas are eroded by the intense radiation and winds from nearby massive stars.

Now Scott Balfour, an astronomer at Cardiff University, has run a new simulation where similar structures appear with a remarkably close appearance to their real life counterparts. He also suggests that the stars that make these structures are of little help in forming new siblings. On Thursday 26 June Scott presented his results in a talk at the National Astronomy Meeting in Portsmouth.

The massive O-type stars, more than 16 times as ‘heavy’ as our Sun, have short but dramatic lives. During their most stable phase on the so-called main sequence, they have surface temperatures of more than 30,000 degrees Celsius (on the Sun the surface is about 5500 degrees), are strong sources of ultraviolet light and emit copious material in a powerful wind.
 
All of this shapes their surroundings. The O-type stars heat any interstellar gas in their vicinity, creating bubbles which act like snow ploughs sweeping up surrounding colder material. In these regions, where gas is compressed, large numbers of new stars are seen forming so many scientists argue that the O stars drive star formation.
 
In his new work, Scott has tried to test this idea by simulating the way the gas behaves over a period of 1.6 million years, a simulation that took several weeks of computing time to calculate. His model explored what would happen when a massive star forms in a smooth cloud of gas that is already collapsing under its own weight.
 
A movie of the simulation, showing how the cloud collapses and forms ‘elephant trunks’ and bright rims over 1.6 million years. 

More http://b4in.org/j55W
https://lh4.googleusercontent.com/-oa1-Emmu0bc/U64rV43iXUI/AAAAAAABemg/OdBIa1Tw-sU/w506-h750/Balfour_pillars_HST.jpg
13 days ago - Via Reshared Post - View -
https://plus.google.com/101213265178409528946 Francesca Volpe : Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W The ‘Pillars of Creation’,...
Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W

The ‘Pillars of Creation’, an image made with the Hubble Space Telescope in 1995, is one of the most famous astronomical views. It shows how ‘elephant trunks’ of cooler interstellar gas are eroded by the intense radiation and winds from nearby massive stars.

Now Scott Balfour, an astronomer at Cardiff University, has run a new simulation where similar structures appear with a remarkably close appearance to their real life counterparts. He also suggests that the stars that make these structures are of little help in forming new siblings. On Thursday 26 June Scott presented his results in a talk at the National Astronomy Meeting in Portsmouth.

The massive O-type stars, more than 16 times as ‘heavy’ as our Sun, have short but dramatic lives. During their most stable phase on the so-called main sequence, they have surface temperatures of more than 30,000 degrees Celsius (on the Sun the surface is about 5500 degrees), are strong sources of ultraviolet light and emit copious material in a powerful wind.
 
All of this shapes their surroundings. The O-type stars heat any interstellar gas in their vicinity, creating bubbles which act like snow ploughs sweeping up surrounding colder material. In these regions, where gas is compressed, large numbers of new stars are seen forming so many scientists argue that the O stars drive star formation.
 
In his new work, Scott has tried to test this idea by simulating the way the gas behaves over a period of 1.6 million years, a simulation that took several weeks of computing time to calculate. His model explored what would happen when a massive star forms in a smooth cloud of gas that is already collapsing under its own weight.
 
A movie of the simulation, showing how the cloud collapses and forms ‘elephant trunks’ and bright rims over 1.6 million years. 

More http://b4in.org/j55W
https://lh4.googleusercontent.com/-oa1-Emmu0bc/U64rV43iXUI/AAAAAAABemg/OdBIa1Tw-sU/w506-h750/Balfour_pillars_HST.jpg
13 days ago - Via Reshared Post - View -
https://plus.google.com/104358047733143240666 Margaret sterling : Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W The ‘Pillars of Creation’,...
Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W

The ‘Pillars of Creation’, an image made with the Hubble Space Telescope in 1995, is one of the most famous astronomical views. It shows how ‘elephant trunks’ of cooler interstellar gas are eroded by the intense radiation and winds from nearby massive stars.

Now Scott Balfour, an astronomer at Cardiff University, has run a new simulation where similar structures appear with a remarkably close appearance to their real life counterparts. He also suggests that the stars that make these structures are of little help in forming new siblings. On Thursday 26 June Scott presented his results in a talk at the National Astronomy Meeting in Portsmouth.

The massive O-type stars, more than 16 times as ‘heavy’ as our Sun, have short but dramatic lives. During their most stable phase on the so-called main sequence, they have surface temperatures of more than 30,000 degrees Celsius (on the Sun the surface is about 5500 degrees), are strong sources of ultraviolet light and emit copious material in a powerful wind.
 
All of this shapes their surroundings. The O-type stars heat any interstellar gas in their vicinity, creating bubbles which act like snow ploughs sweeping up surrounding colder material. In these regions, where gas is compressed, large numbers of new stars are seen forming so many scientists argue that the O stars drive star formation.
 
In his new work, Scott has tried to test this idea by simulating the way the gas behaves over a period of 1.6 million years, a simulation that took several weeks of computing time to calculate. His model explored what would happen when a massive star forms in a smooth cloud of gas that is already collapsing under its own weight.
 
A movie of the simulation, showing how the cloud collapses and forms ‘elephant trunks’ and bright rims over 1.6 million years. 

More http://b4in.org/j55W
https://lh4.googleusercontent.com/-oa1-Emmu0bc/U64rV43iXUI/AAAAAAABemg/OdBIa1Tw-sU/w506-h750/Balfour_pillars_HST.jpg
13 days ago - Via Reshared Post - View -
https://plus.google.com/104358047733143240666 Margaret sterling : Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W The ‘Pillars of Creation’,...
Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W

The ‘Pillars of Creation’, an image made with the Hubble Space Telescope in 1995, is one of the most famous astronomical views. It shows how ‘elephant trunks’ of cooler interstellar gas are eroded by the intense radiation and winds from nearby massive stars.

Now Scott Balfour, an astronomer at Cardiff University, has run a new simulation where similar structures appear with a remarkably close appearance to their real life counterparts. He also suggests that the stars that make these structures are of little help in forming new siblings. On Thursday 26 June Scott presented his results in a talk at the National Astronomy Meeting in Portsmouth.

The massive O-type stars, more than 16 times as ‘heavy’ as our Sun, have short but dramatic lives. During their most stable phase on the so-called main sequence, they have surface temperatures of more than 30,000 degrees Celsius (on the Sun the surface is about 5500 degrees), are strong sources of ultraviolet light and emit copious material in a powerful wind.
 
All of this shapes their surroundings. The O-type stars heat any interstellar gas in their vicinity, creating bubbles which act like snow ploughs sweeping up surrounding colder material. In these regions, where gas is compressed, large numbers of new stars are seen forming so many scientists argue that the O stars drive star formation.
 
In his new work, Scott has tried to test this idea by simulating the way the gas behaves over a period of 1.6 million years, a simulation that took several weeks of computing time to calculate. His model explored what would happen when a massive star forms in a smooth cloud of gas that is already collapsing under its own weight.
 
A movie of the simulation, showing how the cloud collapses and forms ‘elephant trunks’ and bright rims over 1.6 million years. 

More http://b4in.org/j55W
https://lh4.googleusercontent.com/-oa1-Emmu0bc/U64rV43iXUI/AAAAAAABemg/OdBIa1Tw-sU/w506-h750/Balfour_pillars_HST.jpg
13 days ago - Via Reshared Post - View -
https://plus.google.com/102984834474726300796 Paul Svensson : Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W The ‘Pillars of Creation’,...
Video: How The ‘Pillars Of Creation’ … Were Created http://b4in.org/j55W

The ‘Pillars of Creation’, an image made with the Hubble Space Telescope in 1995, is one of the most famous astronomical views. It shows how ‘elephant trunks’ of cooler interstellar gas are eroded by the intense radiation and winds from nearby massive stars.

Now Scott Balfour, an astronomer at Cardiff University, has run a new simulation where similar structures appear with a remarkably close appearance to their real life counterparts. He also suggests that the stars that make these structures are of little help in forming new siblings. On Thursday 26 June Scott presented his results in a talk at the National Astronomy Meeting in Portsmouth.

The massive O-type stars, more than 16 times as ‘heavy’ as our Sun, have short but dramatic lives. During their most stable phase on the so-called main sequence, they have surface temperatures of more than 30,000 degrees Celsius (on the Sun the surface is about 5500 degrees), are strong sources of ultraviolet light and emit copious material in a powerful wind.
 
All of this shapes their surroundings. The O-type stars heat any interstellar gas in their vicinity, creating bubbles which act like snow ploughs sweeping up surrounding colder material. In these regions, where gas is compressed, large numbers of new stars are seen forming so many scientists argue that the O stars drive star formation.
 
In his new work, Scott has tried to test this idea by simulating the way the gas behaves over a period of 1.6 million years, a simulation that took several weeks of computing time to calculate. His model explored what would happen when a massive star forms in a smooth cloud of gas that is already collapsing under its own weight.
 
A movie of the simulation, showing how the cloud collapses and forms ‘elephant trunks’ and bright rims over 1.6 million years. 

More http://b4in.org/j55W
https://lh4.googleusercontent.com/-oa1-Emmu0bc/U64rV43iXUI/AAAAAAABemg/OdBIa1Tw-sU/w506-h750/Balfour_pillars_HST.jpg
13 days ago - Via Reshared Post - View -