News tagged with binary system
Related topics: stars
Capturing planets
(Phys.org) -- The discovery of planets around other stars has led to the realization that alien solar systems often have bizarre features - at least they seem bizarre to us because they were so unexpected. ...
May 22, 2012 |
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Ultra-cool companion helps reveal giant planets
(Phys.org) -- An international team of astronomers led by David Pinfield of the University of Hertfordshire has found a brown dwarf that is more than 99% hydrogen and helium. Described as ultra-cool, it has ...
May 10, 2012 |
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Young stars at home in ancient cluster
(PhysOrg.com) -- Looking like a hoard of gems fit for an emperor's collection, this deep sky object called NGC 6752 is in fact far more worthy of admiration. It is a globular cluster, and at over 10 billion ...
Feb 09, 2012 |
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Stellar astrophysics explains the behavior of fast rotating neutron stars in binary systems
Pulsars are among the most exotic celestial bodies known. They have diameters of about 20 kilometres, but at the same time roughly the mass of our sun. A sugar-cube sized piece of its ultra-compact matter ...
Feb 02, 2012 |
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Binary star system found by following gamma-ray signal
(PhysOrg.com) -- To find a binary star system, which is where two stars are in close proximity to one another, astronomers have traditionally relied on pure luck. They’d first start studying what would look like a single ...
Jan 13, 2012 |
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New class of planetary systems: Astronomers find two new planets orbiting double suns
Using data from NASA’s Kepler Mission, astronomers announced the discovery of two new transiting “circumbinary” planet systems -- planets that orbit two stars. This work establishes that such ...
Jan 11, 2012 |
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NASA's RXTE detect 'heartbeat' of smallest black hole candidate (w/ video)
(PhysOrg.com) -- An international team of astronomers has identified a candidate for the smallest-known black hole using data from NASA's Rossi X-ray Timing Explorer (RXTE). The evidence comes from a specific ...
Dec 15, 2011 |
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In a star's final days, astronomers hunt 'signal of impending doom'
(PhysOrg.com) -- An otherwise nondescript binary star system in the Whirlpool Galaxy has brought astronomers tantalizingly close to their goal of observing a star just before it goes supernova.
Nov 30, 2011 |
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NASA's Fermi finds youngest millisecond pulsar, 100 pulsars to date
An international team of scientists using NASA's Fermi Gamma-ray Space Telescope has discovered a surprisingly powerful millisecond pulsar that challenges existing theories about how these objects form.
Nov 04, 2011 |
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How single stars lost their companions
(PhysOrg.com) -- Not all stars are loners. In our home galaxy, the Milky Way, about half of all stars have a companion and travel through space in a binary system. But explaining why some stars are in double ...
Sep 15, 2011 |
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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 ...
Aug 11, 2011 |
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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 ...
Aug 08, 2011 |
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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 ...
Jun 30, 2011 |
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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 |
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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 ...
Jun 23, 2011 |
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