The origin of binary stars has long been one of the central problems of astronomy. One of the main questions is how stellar mass affects the tendency to be multiple. There have been numerous studies of young stars in molecular ...
Astronomy
Aug 21, 2017
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The more stars a typical spiral galaxy contains, the faster it makes new ones. Astronomers call this relatively tight correlation the "galaxy main sequence." The main sequence might be due simply to the fact that galaxies ...
Astronomy
Jun 5, 2017
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Proxima Centauri, the closest star to the Earth (only 4.28 light-years away) is getting a lot of attention these days. It hosts a planet, Proxima Cen b, whose mass is about 1.3 Earth-mass (though it could be larger, depending ...
Astronomy
Apr 3, 2017
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389
Our sun vibrates due to pressure waves generated by turbulence in its upper layers (the layers dominated by convective gas motions). Helioseismology is the name given to the study of these oscillations, which can shed light ...
Astronomy
Dec 12, 2016
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66
Stars form as gravity contracts the gas and dust in an interstellar cloud until clumps develop that are dense enough to coalesce into stars. Precisely how this happens, however, is very uncertain, and the processes are hard ...
Astronomy
Jul 25, 2016
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38
First postulated more than 230 years ago, black holes have been extensively researched, frequently depicted, even featured in sci-fi films.
Astronomy
Jun 16, 2016
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Nearly all black holes come in one of two sizes: stellar mass black holes that weigh up to a few dozen times the mass of our sun or supermassive black holes ranging from a million to several billion times the sun's mass. ...
Astronomy
Sep 21, 2015
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A team of astronomers from National Astronomical Observatory of Japan (NAOJ), Osaka Kyoiku University, Nagoya University, and Kyoto Sangyo University observed Nova Delphini 2013 (Figure 1, 3) which occurred on August 14, ...
Astronomy
Feb 18, 2015
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(Phys.org) —A University of Alberta astrophysicist's 3-D computer animation is helping an international research team get an unprecedented look at star-forming gases escaping from a nearby galaxy.
Astronomy
Aug 19, 2013
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(Phys.org) —In this new view of a vast star-forming cloud called W3, ESA's Herschel space observatory tells the story of how massive stars are born.
Astronomy
Mar 27, 2013
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