News tagged with red dwarf stars
Brown Dwarfs Don't Hang Out With Stars
Jan 05, 2009 |
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(PhysOrg.com) -- Brown dwarfs, objects that are less massive than stars but larger than planets, just got more elusive, based on a study of 233 nearby multiple-star systems by NASA's Hubble Space Telescope. ...
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White Dwarf Lost in Planetary Nebula
Jun 03, 2008 |
4.2 / 5 (10) |
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Call it the case of the missing dwarf. A team of stellar astronomers is engaged in an interstellar CSI (crime scene investigation). They have two suspects, traces of assault and battery, but no corpse.
Refining the search for new planets
Feb 03, 2009 |
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(PhysOrg.com) -- SF State's planet hunting team is trying new avenues of investigation in the quest to discover planets beyond our solar system. At the American Astronomical Society (AAS) meeting in January, ...
Cosmic Dance Helps Galaxies Lose Weight
Jul 29, 2009 |
4.2 / 5 (5) |
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(PhysOrg.com) -- A study published this week in the journal Nature offers an explanation for the origin of dwarf spheroidal galaxies. The research may settle an outstanding puzzle in unders ...
Dead Stars Tell Story of Planet Birth
Jan 05, 2009 |
4.4 / 5 (8) |
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(PhysOrg.com) -- Astronomers have turned to an unexpected place to study the evolution of planets -- dead stars. Observations made with NASA's Spitzer Space Telescope reveal six dead "white dwarf" stars littered ...
Solar systems around dead Suns?
Apr 20, 2009 |
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(PhysOrg.com) -- Using NASA’s Spitzer Space Telescope, an international team of astronomers have found that at least 1 in 100 white dwarf stars show evidence of orbiting asteroids and rocky planets, suggesting ...
Astronomers discover how white dwarf stars get their 'kicks'
Dec 04, 2007 |
4.1 / 5 (20) |
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University of British Columbia astronomer Harvey Richer and UBC graduate student Saul Davis have discovered that white dwarf stars are born with a natal kick, explaining why these smoldering embers of Sun-like stars are found ...
The Milky Way's tiny but tough galactic neighbor
Oct 14, 2009 |
4.3 / 5 (13) |
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In the new ESO image, Barnard's Galaxy glows beneath a sea of foreground stars in the direction of the constellation of Sagittarius (the Archer). At the relatively close distance of about 1.6 million light-years, ...
Finding Twin Earths: Harder Than We Thought
Mar 20, 2009 |
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(PhysOrg.com) -- Does a twin Earth exist somewhere in our galaxy? Astronomers are getting closer and closer to finding an Earth-sized planet in an Earth-like orbit. NASA's Kepler spacecraft just launched to ...
A sub-stellar Jonah: Brown dwarf survives being swallowed
Aug 02, 2006 |
3.4 / 5 (12) |
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Using ESO's Very Large Telescope, astronomers have discovered a rather unusual system, in which two planet-size stars, of different colours, orbit each other. One is a rather hot white dwarf, weighing a little bit less than ...
Some Super-Earths Form in Super Snowstorms
Oct 11, 2006 |
4.7 / 5 (18) |
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The 200 known planets that orbit other stars exhibit incredible variety. Among them are a handful of worlds that weigh between 5 and 15 times Earth. Astronomers believe these "super-Earths" are rocky iceballs rather than ...
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