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HD202206
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A pair of planets around HD 202206 or a circumbinary planet?
Authors: A.C.M. Correia, S. Udry, M. Mayor, J. Laskar, D. Naef, F. Pepe, D. Queloz, N.C. Santos
(revised - OLD NEWS)
Long-term precise Doppler measurements with the CORALIE spectrograph reveal th...
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Milky Way
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A collision between another galaxy and our own 5 billion years ago may have spawned the stars in the outer Milky Way.
Elemental abundance ratios for bright giants in the old, distant open clusters Berkeley 20, Berkeley 21, NGC 2141[/co...
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254
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Gould belt
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Title: Dark impact and galactic star formation: Origin of the Gould belt Authors: Kenji Bekki The Milky Way has a giant stellar structure in the solar neighbourhood, which has a size of ~ 1 kpc, a mass of ~ 10^6 solar masses, and a ring-like distribution of young stars. Fundamental physical propertie...
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13
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SS433 Binary System
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1 2 3
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Title: Determining the Nature of the SS 433 Binary Using an X-ray Spectrum During Eclipse
Authors: Laura A. Lopez (1, 2, 3), Herman L. Marshall (4), Claude R. Canizares (4), Norbert S. Schulz (4), Julie F. Kane (5) ((1) UCSC (2) IAS (3) NSF Graduate Research Fellow (4) MIT Kavli Inst...
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24
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Class I protostar WL 17
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Title: First Magnetic Field Detection on a Class I Protostar Authors: Christopher M. Johns-Krull, Thomas P. Greene, Greg W. Doppmann, Kevin R. Covey Strong stellar magnetic fields are believed to truncate the inner accretion disks around young stars, redirecting the accreting material to the h...
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Proxima Centauri
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Title: The moderate magnetic field on the flare star Proxima Centauri Authors: Ansgar Reiners, Gibor Basri We report moderate magnetic flux of 450G < Bf < 750G (3sigma) on the nearby M5.5 flare star Proxima Centauri. A high resolution UVES spectrum was used to measure magnetic flux from Zeem...
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12
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Messier 13
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Like a whirl of shiny flakes sparkling in a snow globe, NASA's Hubble Space Telescope catches an instantaneous glimpse of many hundreds of thousands of stars moving about in the globular cluster M13, one of the brightest and best-known globular clusters in the northern sky. This glittering metrop...
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Messier 74
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Resembling festive lights on a holiday wreath, this NASA/ESA Hubble Space Telescope image of the nearby spiral galaxy M74 is an iconic reminder of the impending season. Bright knots of glowing gas light up the spiral arms, indicating a rich environment of star formation. M74 is located roughly 32 m...
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NGC7031, NGC7086
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Title: BV photometry of a possible open star cluster pair NGC 7031/NGC 7086 Authors: Valentin Kopchev, Georgy Petrov We present a CCD BV photometry of the possible binary open star cluster NGC 7031/NGC 7086. The aim is to confirm or disprove their common nature on the grounds of their age and distanc...
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TrES-3
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Title: A transit timing analysis of nine RISE light curves of the exoplanet system TrES-3 Authors: N. P. Gibson (1), D. Pollacco (1), I. Skillen (2), E. K. Simpson (1), S. Barros (1), Y. C. Joshi (1), I. Todd (1), C. Benn (2), D. Christian (1), M. Hrudková (3), F. P. Keenan (1), I. A. Steele (4) ((1) Queen'...
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Sagitta
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Sagitta is a constellation. Its name is Latin for "arrow", and it should not be confused with the larger constellation Sagittarius, the archer. Although ancient, it is insignificant, for it has no star brighter than the 4th magnitude and is the third smallest of all constellations (onl...
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Orion Molecular Cloud Complex
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Title: Molecular environments of 51 Planck cold clumps in Orion complex Authors: Tie Liu, Yuefang Wu, Huawei Zhang A mapping survey towards 51 Planck cold clumps projected on Orion complex was performed with J=1-0 lines of ^{12}CO and ^{13}CO at the 13.7 m telescope of Purple Mountain Observatory...
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NGC 6067
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NGC 6067 (also Mel 140, Cr 298, OCL 953, and ESO 178-SC12) is a magnitude +5.6 open cluster located 5,805 ±391 light-years away in the constellation Norma. The cluster was discovered by Scottish astronomer James Dunlop using a homemade 9-foot 23 cm (9-inch) speculum Newtonian reflector at Parama...
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LSI+61303
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Title: Observations of LSI+61303 with Swift Authors: J. Holder, A. Falcone, D. Morris The TeV emitting high-mass X-ray binary system LSI+61303 was observed with the Swift satellite from early September 2006 to early January 2007. Many of these observations were contemporaneous with TeV observ...
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NGC 1514
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A new image from NASA's Wide-field Infrared Survey Explorer shows what looks like a glowing jellyfish floating at the bottom of a dark, speckled sea. In reality, this critter belongs to the cosmos -- it's a dying star surrounded by fluorescing gas and two very unusual rings. The object, known as NGC 1...
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