News tagged with host star
Astronomy team discovers nearby dwarf galaxy
(PhysOrg.com) -- A team led by UCLA research astronomer Michael Rich has used a unique telescope to discover a previously unknown companion to the nearby galaxy NGC 4449, which is some 12.5 million light years ...
Feb 08, 2012 |
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How well can astronomers study exoplanet atmospheres?
Exoplanet discoveries are happening at a frenetic pace, and some of the latest newly discovered worlds are sometimes described as “Earth-Like” and “potentially habitable.”
Jan 31, 2012 |
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Kepler announces 11 planetary systems hosting 26 planets
(PhysOrg.com) -- NASA's Kepler mission has discovered 11 new planetary systems hosting 26 confirmed planets. These discoveries nearly double the number of verified Kepler planets and triple the number of stars ...
Jan 26, 2012 |
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How common are terrestrial, habitable planets around sun-like stars?
Once again news from the Kepler mission is making the rounds, this time with a research paper outlining a theory that Earth-like planets may be more common around class F, G and K stars than originally expected.
Sep 28, 2011 |
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Homeless supernovae
In a post earlier this month, we looked at a team of astronomers searching for stars that were on ejected from their birthplaces in clusters. These stars could receive the needed kick from a gravitational swing ...
Sep 27, 2011 |
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Hunting for transits of Super-Earth GJ 581e
(PhysOrg.com) -- An international team of astronomers has ruled out transits of a water-rich or hydrogen-helium atmosphere planet for Gliese 581e. The host star itself is relatively quiet which means good ...
Jun 02, 2011 |
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Planets that have no stars: New class of planets discovered
(PhysOrg.com) -- University of Notre Dame astronomer David Bennett is co-author of a new paper describing the discovery of a new class of planets -- dark, isolated Jupiter-mass bodies floating alone in space, ...
May 18, 2011 |
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The shocking environment of hot Jupiters
(PhysOrg.com) -- Jupiter-like worlds around other stars push shock waves ahead of them, according to a team of UK astronomers. Just as the Earth's magnetic "bow-shock" protects us from the high-energy solar ...
Apr 19, 2011 |
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The rose-red glow of star formation
The vivid red cloud in this new image from ESO's Very Large Telescope is a region of glowing hydrogen surrounding the star cluster NGC 371. This stellar nursery lies in our neighboring galaxy, the Small Magellanic ...
Mar 30, 2011 |
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Assumptions about exo-oceans
Some estimates indicate that 25% of Sun-like stars have Earth-like planets. A new study now shows that these planets are almost certain to have oceans if they are located in the right temperature zone around ...
Mar 04, 2011 |
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Planet affects a star's spin
The discovery of a hot Jupiter exoplanet that transfers orbital momentum to its host star may hold the key to a clearer understanding of the evolution of common planetary systems, according to findings presented ...
Jan 13, 2011 |
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Learning from hot Jupiters
The possibility of discovering a planet that is small, cool, rocky, orbiting a sunlike star and able to host life -- an Earth twin, in other words -- has made the search for planets outside of our solar ...
Dec 15, 2010 |
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Astronomers find first planet from another galaxy (w/ Video)
(PhysOrg.com) -- An exoplanet orbiting a star that entered our Milky Way from another galaxy has been detected by a European team of astronomers using the MPG/ESO 2.2-meter telescope at ESO's La Silla Observatory ...
Nov 18, 2010 |
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X-Ray observations of an extrasolar planetary system
(PhysOrg.com) -- The majority of extra-solar planets (about 278 of them) are more massive than Jupiter. About 20% of this majority group orbit their stars at a distances of less than one-tenth of an astronomical ...
Oct 22, 2010 |
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Hubble observations of supernova reveal composition of 'star guts' pouring out
Observations made with NASA's newly refurbished Hubble Space Telescope of a nearby supernova are allowing astronomers to measure the velocity and composition of "star guts" being ejected into space following ...
Sep 02, 2010 |
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