News tagged with stellar winds

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The magnetic wakes of pulsar planets

Pulsars are among the most extreme stars in the universe: dense balls of matter which are heavier than the Sun, yet only a few tens of kilometers in diameter. They rotate rapidly (up to several hundred revolutions per second) ...

dateOct 08, 2012 in Astronomy
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Recipe for water: Just add starlight

ESA's (European Space Agency) Herschel infrared space observatory has discovered that ultraviolet starlight is a key ingredient for making water in the atmosphere of some stars. It is the only explanation for why a dying ...

dateSep 01, 2010 in Astronomy
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Pulverized planet dust might lie around double stars

( -- Tight double-star systems might not be the best places for life to spring up, according to a new study using data from NASA's Spitzer Space Telescope. The infrared observatory spotted a surprisingly large ...

dateAug 23, 2010 in Astronomy
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Superhot Planet Likely Possesses Comet-like Tail

( -- As if the debate over what is and what is not a planet hasn't gotten confusing enough, Hubble Space Telescope astronomers have now confirmed the existence of a tortured, baked object that could be called ...

dateJul 15, 2010 in Astronomy
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Accretion around a young star

( -- The star TW Hydrae is located about 150 light-years from Earth in the direction of the constellation of Hydrae, the Water Snake. This star is relatively young, about 10 million years old, and has passed out ...

dateJul 24, 2012 in Astronomy
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Cygnus X-1: Still a 'Star' After All Those Years

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 a combination ...

dateAug 28, 2009 in Astronomy
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Maps Unveil the Source of Starburst Galaxy's Winds

( -- A research group at Kyoto University has discovered that shocks are the primary energy sources that excite the galactic wind region of starburst galaxy NGC 253. Their images of the center of this galaxy, ...

dateNov 18, 2009 in Astronomy
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Star formation laws

Take a cloud of molecular hydrogen add some turbulence and you get star formation – that’s the law. The efficiency of star formation (how big and how populous they get) is largely a function of the density of the ...

dateSep 26, 2011 in Astronomy
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