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Latest Binary star Stories

2013-01-16 23:03:15

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Binary Star Orbit Shifts Could Force Planetary Ejections
2013-01-07 03:28:35

redOrbit Staff & Wire Reports - Your Universe Online The orbits of distant binary stars can become altered over time, potentially causing violent disruptions in their planetary systems and possibly causing worlds to become scattered or ejected, an international team of astrophysicists has discovered in a new study. According to the researchers, all planetary systems in which one star is orbited by a second, companion star, can be altered by the gravity of the companion star, but...

How Do Wide Binary Stars Form
2012-12-05 13:48:14

Lee Rannals for redOrbit.com - Your Universe Online Scientists have reported in the journal Nature that they have figured out by using computer simulations how wide binary stars are able to form. Wide binary stars are two stars that orbit each other at a distance up to a light year. Some binary stars can be very close, while other pairs are extremely far apart. Astronomers have known about wide binary pairs for a long time, but how they form has remained a mystery. Now, astronomers...

Aging Stars Sculpt Spectacular Shape Of Planetary Nebula
2012-11-08 14:21:55

[ Video 1 ] | [ Video 2 ] | Video 3 ] Lee Rannals for redOrbit.com - Your Universe Online Astronomers have discovered a pair of stars orbiting each other at the center of a remarkable example of a planetary nebula. The latest find confirms a theory about what controls the spectacular and symmetric appearance of the material flung out into space. Planetary nebulae are glowing shells of gas around white dwarfs, and Fleming 1 is considered a great example that has strikingly...

First Planet Discovered In A Quadruple Star System Confirmed
2012-10-31 09:45:16

University of Notre Dame Justin Crepp, Freimann Assistant Professor of physics at the University of Notre Dame, provided the high-contrast imaging observations that confirmed the first extrasolar planet discovered in a quadruple star system. He is a co-author on a paper about the discovery, “Planet Hunters: A Transiting Circumbinary Planet in a Quadruple Star System,” recently posted to the open-access arXiv.org, and submitted for publication to The Astrophysical Journal....

Planet Found Orbiting Two Stars
2012-10-15 13:37:20

Lee Rannals for redOrbit.com - Your Universe Online A team of international astronomers, along with Planethunters.org volunteers, found the first reported case of a planet orbiting twin suns that in turn is orbited by a second distant pair of stars. Researchers said that only six planets are known to orbit two stars, and none of these are orbited by distant stellar companions. "Circumbinary planets are the extremes of planet formation," said Meg Schwamb of Yale University and lead...

Stellar Winds Of Two Massive Stars Tracked Using X-Rays
2012-10-12 16:48:42

[Watch the Video: X-ray Satellites Monitor the Clashing Winds of a Colossal Binary] [Watch the Video: Simulation of Colliding Stellar Wind Binary] [Watch the Video: Simulation of Binary Star System] Lee Rannals for redOrbit.com — Your Universe Online Astronomers have X-rayed the stellar winds of two massive stars that are orbiting around one another. Stellar winds can trigger the collapse of surrounding clouds of gas and dust to form new stars, and can also blast the...

When Massive Stars Collide, Monsters Are Formed
2012-08-07 13:31:56

Lee Rannals for redOrbit.com - Your Universe Online Astronomers now believe the "monster stars" located in the nearby galaxy the Large Magellanic Cloud (LMC) were formed through the merger of lighter stars. The team wrote in the journal Monthly Notices of the Royal Astronomical Society that the group of stars may have formed while smaller stars were in a tight binary system. In 2010, scientists discovered these supermassive stars, one of which is more than 300 times the mass of the...


Latest Binary star Reference Libraries

10_92430632dfc26ec0245770cbd79d1d092
2004-10-19 04:45:44

Lyra Constellation -- Lyra (the lyre) is a prominent, although fairly small, northern constellation. It was one of Ptolemy's 48 constellations, and also counts among the modern 88 constellations. Its brightest star is Vega (Alpha Lyrae), which together with Altair (Alpha Aquilae) and Deneb (Alpha Cygni) forms the large asterism known as the Summer Triangle. Beta Lyr is a half separated (i.e. one of the stars reached its Rochevolume) eclipsing binary of a cream-white colour. The...

6_1446abbc556d86191d7944d6c5cf68052
2004-10-19 04:45:43

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...

6_48ed76f36ff2f4ed0ad83a22964029652
2004-10-19 04:45:43

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...

6_f1577ee462b741c03ef6a7d23d2cd6905
2004-10-19 04:45:43

Variable Star -- Most stars are of nearly constant luminosity. Our own Sun is a good example which goes through practically no measurable variation in brightness. There are, however, stars which do vary in brightness, called variable stars. They fall into two main groups: Intrinsic variables These are stars which have intrinsic variations in brightness, that is the star itself gets brighter and dimmer. There are many types of intrinsic variables, the main types being: -- Mira...

6_56f5b656bab076f112064c1e8bd2f30c2
2004-10-19 04:45:42

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...

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Word of the Day
callithump
  • A somewhat riotous parade, accompanied with the blowing of tin horns, and other discordant noises; also, a burlesque serenade; a charivari.
'Callithump' is a back-formation of 'callithumpian,' a 'fanciful formation' according to the Oxford English Dictionary. However, the English Dialect Dictionary, says 'Gallithumpians' is a Dorset and Devon word from the 1790s that refers to 'a society of radical social reformers' or 'noisy disturbers of elections and meetings.'
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