News tagged with stellar winds

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'Elephant trunks' in space

(PhysOrg.com) -- NASA's Wide-field Infrared Survey Explorer, or WISE, captured this image of a star-forming cloud of dust and gas, called Sh2-284, located in the constellation of Monoceros. Lining up along ...

Mar 07, 2011
5 / 5 (2) 3 | with audio podcast

Hubble finds that puny stars pack a big punch

(PhysOrg.com) -- A deep survey of more than 200,000 stars in our Milky Way galaxy has unveiled the sometimes petulant behavior of tiny red dwarf stars. These stars, which are smaller than the Sun, can unleash ...

Jan 10, 2011
5 / 5 (6) 2 | with audio podcast

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 ...

Sep 01, 2010
4.8 / 5 (12) 3 | with audio podcast

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 ...

Oct 08, 2012
5 / 5 (2) 37

WISE image reveals strange specimen in starry sea

(PhysOrg.com) -- A new image from NASA's Wide-field Infrared Survey Explorer shows what looks like a glowing jellyfish floating at the bottom of a dark, speckled sea. In reality, this critter belongs to the ...

Nov 17, 2010
4.9 / 5 (14) 11 | with audio podcast

Pulverized planet dust might lie around double stars

(PhysOrg.com) -- 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 ...

Aug 23, 2010
4.4 / 5 (5) 1 | with audio podcast

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 ...

Aug 28, 2009
4.3 / 5 (12) 4

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 ...

Sep 26, 2011
4.7 / 5 (3) 4

Dance of the X-rays

Like car tail lights streaking through a busy city at night, this unique image records over a thousand movements made by ESA's XMM-Newton space telescope as it shifts its gaze from one X-ray object to another.

Jul 29, 2013
4.3 / 5 (3) 0

Accretion around a young star

(Phys.org) -- 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 ...

Jul 24, 2012
4.8 / 5 (4) 3

Maps Unveil the Source of Starburst Galaxy's Winds

(PhysOrg.com) -- 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 ...

Nov 18, 2009
5 / 5 (8) 0

Superhot Planet Likely Possesses Comet-like Tail

(PhysOrg.com) -- 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 ...

Jul 15, 2010
4.8 / 5 (9) 3 | with audio podcast