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Close Binary Stars
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Stars/galaxy News
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1323
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Title: Radial Velocity Studies of Close Binary Stars. XV Authors: T. Pribulla, S.M. Rucinski, R.M. Blake, W. Lu, J.R. Thomson, H. DeBond, T. Karmo, A. de Ridder, W. Ogloza, G. Stachowski, M. Siwak Radial-velocity measurements and sine-curve fits to the orbital radial velocity variations are pre...
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A1 binary system
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12438
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The two heaviest stars ever have been discovered in the southern Milky Way galaxy. The double super heavyweights are actually in orbit around each other, and both break the record 83 times the suns mass for the most massive stars found to date. The heavier of the two weighs in at a whopping 114 "so...
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Widest Very Low Mass Binary
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1402
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imagine two tennis balls separated by 180 miles--yet still in orbit around each other. That's an accurate scale model for a remarkable pair of red stars which astronomers have discovered in the constellation Phoenix. The double star is the widest very low mass binary ever seen and may shed new l...
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Widest ultracool binary
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1167
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Title: The widest ultracool binary
Authors: Jose A. Caballero
Aims: I test the ejection scenario of formation of brown dwarfs and very low-mass stars through the detection of a very wide ultracool binary.
Methods: LEHPM 494 (M6.0 ±1.0 V) and DENIS-P J0021...
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Wide binary systems
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Stars/galaxy News
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2133
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Title: New Distant Companions to Known Nearby Stars. II. Faint companions of Hipparcos stars and the frequency of wide binary systems
Authors: Sébastien Lépine, Bethany Bongiorno
We perform a search for faint, common proper motion companions of Hipparcos stars using the...
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Eclipsing X-ray binary
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1160
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Title: Discovery of an eclipsing X-ray binary with a 32.69 hour period in M101: an analogue of Her X-1 or LMC X-4?
Authors: Jifeng Liu, Rosanne di Stefano, Jeffrey McClintock (CfA), Albert Kong (MIT), Joel Bregman (UMich), Kip Kuntz (JHU/GSFC)
We report the discovery of an ec...
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Binary Star RBS 0490
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1208
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Title: The Unusual Cataclysmic Binary Star RBS 0490 and the Space Density of Cataclysmics
Authors: John R. Thorstensen, Sebastien Lepine, Michael Shara
RBS (Rosat Bright Source) 0490 is a cataclysmic variable star (CV) with unusually strong emission lines. The strength...
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Binary star SR24
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1091
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A team of astronomers from The Graduate University for Advanced Studies, the National Astronomical Observatory of Japan, and other universities have captured the first direct image of a young binary star system. Using the Coronagraphic Imager with Adaptive Optics (CIAO) mounted on the Subaru T...
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Z Canis Majoris
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Stars/galaxy News
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1909
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Title: The nature of the recent extreme outburst of the Herbig Be/FU Ori binary Z CMa Authors: T. Szeifert, S. Hubrig, M. Schöller, O. Schütz, B. Stelzer, Z. Mikulásek Z CMa is a binary system which consists of two young stars: A Herbig AeBe component "Z CMa NW" embedded in a dust cocoon and a...
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