Latest Binary star Stories
An international team of astronomers have discovered a unique and exotic star system with a very cool methane-rich (or T-) dwarf star and a "˜dying' white dwarf stellar remnant in orbit around each other. The system is a "˜Rosetta Stone' for T-dwarf stars, giving scientists the first good handle on their mass and age.The team, led by Dr Avril Day-Jones of the Universidad de Chile and including Dr David Pinfield of the University of Hertfordshire as well as astronomers from the University of...
Sometimes when you're looking for one thing, you find something completely different and unexpected. In the scientific endeavor, such serendipity can lead to new discoveries. Today, researchers who found the first hypervelocity stars escaping the Milky Way announced that their search also turned up a dozen double-star systems. Half of those are merging and might explode as supernovae in the astronomically near future.All of the newfound binary stars consist of two white dwarfs. A white dwarf...
WASHINGTON, Nov. 15, 2010 /PRNewswire-USNewswire/ -- Astronomers using NASA's Chandra X-ray Observatory have found evidence of the youngest black hole known to exist in our cosmic neighborhood. The 30-year-old black hole provides a unique opportunity to watch this type of object develop from infancy. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) The black hole could help scientists better understand how massive...
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.The University of Warwick and Sheffield astronomers played a key role in an international team that used two decades of observations from many telescopes around the world. The UK astronomers helped discover this "snooker like" star system through observations and analysis of data from an astronomical...
BERLIN, Nov. 8, 2010 /PRNewswire/ -- Binary Tree, a leading provider of software solutions for migrating to on-premises and cloud-based versions of Microsoft Exchange, introduced the new Binary Tree E2E Complete software product to the European market today at the Microsoft TechEd Europe 2010 Conference in Berlin. E2E Complete reduces the cost and complexity of upgrading to Exchange 2010 from Exchange 2003/2007. E2E Complete enables administrators to perform and centrally manage...
NEWARK, N.J., Nov. 5, 2010 /PRNewswire/ -- Binary Tree today announced a strategic alliance to deploy its software for Microsoft led migrations for IBM/Lotus Notes customers to Microsoft Exchange Online, part of its Business Productivity Online Suite (BPOS). As Microsoft's preferred vendor, Binary Tree's technology and methodology will be leveraged to transition messaging and calendaring data for legacy IBM/Lotus Notes customers. "We have decided to use Binary Tree tools to migrate Lotus...
LAS VEGAS, Nov. 2, 2010 /PRNewswire/ -- Binary Tree, a leading provider of software solutions for migrating to on-premises and cloud-based versions of Microsoft Exchange, announced a new software product today at the Exchange Connections Conference and Expo that reduces the cost and complexity of upgrading to Exchange 2010 from Exchange 2003/2007. The new product, Binary Tree E2E Complete, enables administrators to perform and centrally manage intra-organizational Exchange upgrades that...
Model explains evolution of unusual binary system, why large star not so luminousIn a galaxy far away, an exceptionally massive black hole is traveling around a massive star in an unusually tight orbit. Also odd, the star is not as bright as it should be.Astronomers have puzzled over this X-ray binary system, named M33 X-7, but no one could explain all of its features. Now a Northwestern University research team has.The researchers have produced a model of the system's evolutionary history...
Evidence that a star has recently engulfed a companion star or a giant planet has been found using NASA's Chandra X-ray Observatory. The likely existence of such a "cannibal" star provides new insight into how stars and the planets around them may interact as they age.The star in question, known as BP Piscium (BP Psc), appears to be a more evolved version of our Sun, but with a dusty and gaseous disk surrounding it. A pair of jets several light years long blasting out of the system...
The asteroid belt between Mars and Jupiter is often depicted as a dull zone of dead rocks with an occasional wayward speedster smashing through on its way toward the sun.A new study appearing in the Aug. 26 issue of the journal Nature paints a different picture, one of slow but steady change, where sunlight gradually drives asteroids to split in two and move far apart to become independent asteroids among the millions orbiting the sun. "This shows that asteroids are not inert, dead...
Latest Binary star Reference Libraries
X-ray Burster -- X-ray bursters are a class of binary stars which are luminous in X-rays. They contain a neutron star and a low-mass companion star. The companion fills its Roche lobe and therefore the neutron star is accreting matter from it. The inflowing gas forms an accretion disk around the neutron star. Sometimes X-ray bursters show a sudden increase in their X-ray luminosity, called X-ray burst. All properties of the X-ray bursts can be explained assuming that they result from...
X-ray Binaries -- X-ray binaries are a class of binary stars that are very luminous in X-rays. The X-rays are produced by matter falling from one component (usually a relatively normal star) to the other component, which is a neutron star or a black hole. The infalling matter releases gravitational potential energy, up to several tens of per cent of its rest mass as X-rays. (Hydrogen fusion releases about 0.7 per cent of rest mass) X-ray binaries are further subdivided into...
Triple Star -- A triple star system consists of three gravitationally bound stars. The stars are in orbits around a common center of mass, usually so that two of the stars form a close binary star and the third is further away. This configuration is often called a hierarchical triple star. Multiple stars containing more than three stars can usually be decomposed to binaries and single stars that are in a hierachically bound system. ----- Click here to learn more on this...
Nova -- A nova is an enormous nuclear explosion caused by the accretion of hydrogen onto the surface of a white dwarf star. When a white dwarf has a close companion star, the companion will often begin to have its outer atmosphere drawn away from it by the white dwarf's gravity as the companion star ages and expands into a red giant. The gases so captured consist primarily of hydrogen and helium, the two principle constituents of matter in the universe. The gases are compacted on the...
Double Star -- When two stars are so nearly in the same direction as seen from Earth that they appear to be a single star to the naked eye but may be separated by the use of telescopes, they are referred to as a double star. There are two different kinds of double star. In the case where two stars are only apparently close to each other, but which are in fact separated by a great distance are known as optical doubles or optical binaries. In the vast majority of cases, however, the two...
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