News tagged with binary systems

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A black widow's Tango Mortale in gamma-ray light

Pulsars are the compact remnants from explosions of massive stars. Some of them spin around their own axis hundreds of times per second, emitting beams of radiation into space. Until now, they could only ...

Oct 25, 2012
5 / 5 (7) 0 | with audio podcast

X-raying stellar winds in a high-speed collision

(Phys.org)—Two massive stars racing in orbit around each other have had their colliding stellar winds X-rayed for the first time, thanks to the combined efforts of ESA's XMM-Newton and NASA's Swift space ...

Oct 12, 2012
5 / 5 (3) 3 | with audio podcast

Hubble watching ancient orbs

(Phys.org)—This sparkling picture taken by the NASA/ESA Hubble Space Telescope shows the center of globular cluster M 4. The power of Hubble has resolved the cluster into a multitude of glowing orbs, each ...

Sep 08, 2012
4.6 / 5 (14) 4 | with audio podcast

Astronomers crack mystery of the 'monster stars'

(Phys.org) -- In 2010 scientists discovered four 'monster' sized stars, with the heaviest more than 300 times as massive as our Sun. Despite their incredible luminosity, these exotic objects, located in the ...

Aug 07, 2012
5 / 5 (14) 11 | with audio podcast

Supernova progenitor found?

(Phys.org) -- Type Ia supernovae are violent stellar explosions. Observations of their brightness are used to determine distances in the universe and have shown scientists that the universe is expanding at ...

Aug 03, 2012
4.9 / 5 (9) 4 | with audio podcast

UKIRT discovers 'impossible' binary stars

(Phys.org) -- A team of astronomers have used the United Kingdom Infrared Telescope (UKIRT) on Hawaii to discover four pairs of stars that orbit each other in less than 4 hours. Until now it was thought that ...

Jul 05, 2012
4.8 / 5 (18) 18 | with audio podcast