Search results for stellar cannibalism
Even stars get fat -- And 'stellar cannibalism' is the reason
Jan 14, 2009 |
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Researchers have discovered evidence that blue stragglers in globular clusters, whose existence has long puzzled astronomers, are the result of 'stellar cannibalism' in binary stars. In other words, binary ...
Cygnus X-1: Still a 'Star' After All Those Years
Aug 28, 2009 |
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Since its discovery 45 years ago, Cygnus X-1 has been one of the most intensively studied cosmic X-ray sources. About a decade after its discovery, Cygnus X-1 secured a place in the history of astronomy when ...
Living fossils hold record of 'supermassive' kick
Jul 09, 2009 |
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The tight cluster of stars surrounding a supermassive black hole after it has been violently kicked out of a galaxy represents a new kind of astronomical object and a fossil record of the kick.
Ultra-Powerful Laser Reproduces How Star's Jets Travel through Interstellar Space
Nov 20, 2009 |
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(PhysOrg.com) -- A multi-trillion-watt laser at the University of Rochester has simulated a stellar jet -- an outpouring of matter from a fledgling star -- with unprecedented realism.
Young stellar objects: The source of gas emission around Herbig Ae/Be stars
Oct 10, 2008 |
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This week, Astronomy & Astrophysics is publishing new observations with AMBER/VLTI of the gas component in the vicinity of young stars. An international team of astronomers led by E. Tatulli (Grenoble, France) and S. Kra ...
Astrophysicists Move Closer to Understanding the Beauty Behind Stellar Jets
Sep 28, 2009 |
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(PhysOrg.com) -- Certain stars stream vast amounts of matter into space, creating some of the most beautiful objects in astronomers' telescopes. But while the astronomers can enjoy the beauty, they can't explain it. Adam ...
First laboratory experiment to accurately model stellar jets explains mysterious 'knots'
Feb 09, 2009 |
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Some of the most breathtaking objects in the cosmos are the jets of matter streaming out of stars, but astrophysicists have long been at a loss to explain how these jets achieve their varied shapes. Now, laboratory research ...
New Map Locates Metals in Millions of Milky Way Stars
Jun 12, 2008 |
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An international team of scientists from the Sloan Digital Sky Survey (SDSS-II) has unveiled the most complete and detailed map yet of the chemical composition of our Galaxy.
Baby Stars Finally Found in Jumbled Galactic Center
Jun 10, 2009 |
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Astronomers have at last uncovered newborn stars at the frenzied center of our Milky Way galaxy. The discovery was made using the infrared vision of NASA's Spitzer Space Telescope.
Stellar family portrait takes imaging technique to new extremes
Dec 03, 2009 |
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Noted for harbouring Eta Carinae -- one of the wildest and most massive stars in our galaxy -- the impressive Carina Nebula also houses a handful of massive clusters of young stars. The youngest of these stellar ...
Understanding stellar explosions is less straightforward than previously thought
Apr 30, 2009 |
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(PhysOrg.com) -- Stellar explosions called novæ are caused by nuclear reactions between the star's atoms. In order to better understand such violent phenomena, astrophysicists study the radiation emitted by certain types ...
Hubble Finds Stars That 'Go Ballistic'
Jan 07, 2009 |
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(PhysOrg.com) -- Even some stars go ballistic, racing through interstellar space like bullets and tearing through clouds of gas.
Vampires and collisions rejuvenate stars
Dec 23, 2009 |
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Stars in globular clusters are generally extremely old, with ages of 12-13 billion years. However, a small fraction of them appear to be significantly younger than the average population and, because they ...
The hottest white dwarf in its class
Dec 12, 2008 |
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(PhysOrg.com) -- A team of German and American astronomers present far-ultraviolet observations of white dwarf KPD 0005+5106 and reveal that it is among the hottest stars ever known with a temperature of 200 ...
NASA's Great Observatories Celebrate International Year of Astronomy
Nov 10, 2009 |
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(PhysOrg.com) -- A never-before-seen view of the turbulent heart of our Milky Way galaxy is being unveiled by NASA on Nov. 10. This event will commemorate the 400 years since Galileo first turned his telescope ...
