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Ultra-Powerful Laser Reproduces How Star's Jets Travel Through Interstellar Space Rochester NY (SPX) Nov 20, 2009 
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. The achievement, which is detailed in the latest issue of the Astrophysical Journal, is the latest in a series of experiments in which scientists from around the world have converged on the University of Rochester's Laboratory for ... read moreBaffling Boxy Bulge 
Paris, France (ESA) Nov 20, 2009The evolution of bulges in the centres of spiral galaxies puzzles astronomers. A recent NASA/ESA Hubble Space Telescope image of NGC 4710 is part of a survey that has been conducted to learn more about the formation of bulges, which are a substantial component of most spiral galaxies. When targeting spiral galaxy bulges, astronomers often seek edge-on galaxies, as their bulges are more ... more
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Ticking Stellar Time Bomb Identified
Paris, France (SPX) Nov 19, 2009Using ESO's Very Large Telescope and its ability to obtain images as sharp as if taken from space, astronomers have made the first time-lapse movie of a rather unusual shell ejected by a "vampire star", which in November 2000 underwent an outburst after gulping down part of its companion's matter. This enabled astronomers to determine the distance and intrinsic brightness of the ... more Hidden Details In Birth Of Super-Suns 
Cambridge MA (SPX) Nov 19, 2009The constellation of Orion is a hotbed of massive star formation, most prominently in the Great Nebula that sits in Orion's sword. The glowing gas of the Nebula is powered by a group of young massive stars, but behind it is a cluster of younger stars and clumps of gas. Still gathering together under gravity's pull, these gas clumps will eventually ignite into stars. The youthful cluster ... more Rapid Star Formation Spotted In 'Stellar Nurseries' Of Infant Galaxies 
Durham, UK (SPX) Nov 12, 2009The Universe's infant galaxies enjoyed rapid growth spurts forming stars like our sun at a rate of up to 50 stars a year, according to scientists at Durham University. The findings show that "stellar nurseries" within the first galaxies gave birth to stars at a much more rapid rate than previously expected, the researchers from Durham's Institute for Computational Cosmology revealed. ... more High-School Students Publish Research On Cataclysmic Variable Stars 
Paris, France (SPX) Nov 09, 2009This week, Astronomy and Astrophysics publishes a somewhat unusual research article because it is co-authored by German high-school students. Led by astronomer Klaus Beuermann (University of Goettingen, Germany), the team involves a secondary school physics teacher, three students from two high schools in Goettingen, and three professional astronomers. The team made use of a remotely ... more |
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Precise Picture Of Early Universe Supports 'Dark Matter' Theory
Cardiff, UK (SPX) Nov 03, 2009A detailed picture of the seeds of structures in the universe has been unveiled by an international team co-led by a Cardiff University scientist. The team has obtained extremely precise data about the early universe, using a telescope near the South Pole in the Antarctic. Their measurements of the cosmic microwave background - a faintly glowing relic of the hot, dense, young universe ... more Fermi Detects Gamma-Ray From "Star Factories" In Other Galaxies 
Menlo Park CA (SPX) Nov 03, 2009Nearby galaxies undergoing a furious pace of star formation also emit lots of gamma rays, say astronomers using NASA's Fermi Gamma-ray Space Telescope. Two so-called "starburst" galaxies, plus a satellite of our own Milky Way galaxy, represent a new category of gamma-ray-emitting objects detected both by Fermi and ground-based observatories. "Starburst galaxies have not been accessible in ... more VERITAS Telescopes Help Solve Origin Of Cosmic Rays 
Boston MA (SPX) Nov 03, 2009Nearly 100 years ago, scientists detected the first signs of cosmic rays - subatomic particles (mostly protons) that zip through space at nearly the speed of light. The most energetic cosmic rays hit with the punch of a 98-mph fastball, even though they are smaller than an atom. Astronomers questioned what natural force could accelerate particles to such a speed. New evidence from the ... more Mega-star explosion most distant object ever seen 
Paris (AFP) Oct 29, 2009It took 13 billion years to reach Earth, but astronomers have seen the light of an exploding mega-star that is the most distant object ever detected, two studies published Thursday reported. The stunning gamma-ray burst (GRB) was observed by two teams of researchers in April, and opens a window onto a poorly known period when the Universe was in its infancy. GRBs are the most violent ... more |
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