News tagged with binary systems

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Gamma-ray emission from Terzan 5

(PhysOrg.com) -- The H.E.S.S. telescope system in Namibia discovered a new source of very-high-energy gamma-rays from the direction of the globular cluster Terzan 5. Being very likely located in the outer ...

Jun 24, 2011
4.8 / 5 (4) 2 | with audio podcast

Cygnus X-1: Blue supergiant pairs with black hole

Discovered in 1964 during a rocket flight, Cygnus X-1 holds the record for being the strongest X-ray source seen from Earth. The blue supergiant star designated as HDE 226868 is just part of this high-mass ...

Jun 23, 2011
4.8 / 5 (5) 2

Companion stars could cause unexpected X-rays

Many types of main sequence stars emit in the X-ray portion of the spectra. In massive stars, strong stellar winds ripping through the extended atmosphere of the star create X-ray photons. On lower mass stars, ...

Mar 25, 2011
5 / 5 (1) 3

Binary planetesimals

(PhysOrg.com) -- In fewer than ten million years, the material in the disk around a young star will either be accreted on to its star, dispersed into the interstellar medium, or converted into planets or smaller ...

Jan 28, 2011
5 / 5 (3) 2 | with audio podcast

Graphene and 'spintronics' combo looks promising

A team of physicists has taken a big step toward the development of useful graphene spintronic devices. The physicists, from the City University of Hong Kong and the University of Science and Technology of China, present ...

Jan 25, 2011
5 / 5 (2) 0 | with audio podcast

Astronomers find 'snooker star system'

Astronomers at The University of Warwick and the University of Sheffield have helped discover an unusual star system which looks like, and may even once have behaved like, a game of snooker.

Nov 09, 2010
4.6 / 5 (11) 6 | with audio podcast