News tagged with binary systems

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Team finds Type Ia supernovae parents

Type Ia supernovae are violent stellar explosions whose brightness is used to determine distances in the universe. Observing these objects to billions of light years away has led to the discovery that the universe is expanding ...

dateAug 11, 2011 in Astronomy
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Two more kepler planets confirmed

Hot on the heels of confirming one Kepler planet, the Hobby-Eberly Telescope announces the confirmation of another planet. Another observatory, the Nordic Optical Telescope, confirms its first Kepler planet ...

dateAug 08, 2011 in Astronomy
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'Zombie' stars key to measuring dark energy

"Zombie" stars that explode like bombs as they die, only to revive by sucking matter out of other stars. According to an astrophysicist at UC Santa Barbara, this isn't the plot for the latest 3D blockbuster ...

dateJun 30, 2011 in Astronomy
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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 ...

dateJun 24, 2011 in Astronomy
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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 ...

dateJun 23, 2011 in Astronomy
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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, ...

dateMar 25, 2011 in Astronomy
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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 ...

dateJan 28, 2011 in Astronomy
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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 ...

dateJan 25, 2011 in Nanophysics
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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.

dateNov 09, 2010 in Astronomy
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