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Extremely Metal Poor Star
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Title: A New Type of Extremely Metal Poor Star Authors: Judith G. Cohen, Andrew McWilliam, Norbert Christlieb, Stephen Shectman, Ian Thompson, Jorge Melendez, Lutz Wisotzki, Dieter Reimers We present an abundance analysis for the extremely metal poor star HE1424-0241 based on high dispersion...
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G272.2-3.2
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Title: Suzaku study of centrally brightened supernova remnant G272.2-3.2 Authors: A. Sezer, F. Gok In this work, the results from Suzaku observation of Galactic supernova remnant G272.2-3.2 are presented. Spectra of G272.2-3.2 are well fitted by a single-temperature variable abundances non...
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LMC cluster SL 529
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Title: A new Extended Main Sequence Turnoff star cluster in the Large Magellanic Cloud Authors: Andrés E. Piatti We present results on the age and metallicity estimates of the poorly studied LMC cluster SL 529, from CCD SDSS gr photometry obtained at the Gemini South telescope with the GMOS attache...
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Luminous Blue Variables
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Title: Luminous Blue Variables as the progenitors of supernovae with quasi-periodic radio modulations
Authors: Rubina Kotak (ESO), Jorick S. Vink (Keele University)
The interaction between supernova ejecta and circumstellar matter, arising from previous episodes o...
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Vega
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Rapidly Spinning Star Vega has Cool Dark Equator
Strong darkening observed around the equator of Vega suggests that the fifth brightest star in Earth's sky has a huge temperature difference of 4,000 degrees Fahrenheit from its cool equatorial region to its hot poles.
Models of th...
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11
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2MASS J22282889-431026
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Title: Vertical Atmospheric Structure in a Variable Brown Dwarf: Pressure-dependent Phase Shifts in Simultaneous Hubble Space Telescope-Spitzer Light Curves Authors: Esther Buenzli, Daniel Apai, Caroline V. Morley, Davin Flateau, Adam P. Showman, Adam Burrows, Mark S. Marley, Nikole K. L...
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Gamma Doradus stars
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Title: A spectroscopic study of southern (candidate) gamma Doradus stars. II. Detailed abundance analysis and fundamental parameters Authors: H. Bruntt, P. De Cat, C. Aerts The gamma Doradus stars are a recent class of variable main sequence F-type stars located on the red edge of the Cepheid ins...
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Wide binary systems
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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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TX Piscium
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TX Piscium (19 Psc) is a variable carbon star in the constellation Pisces. It is amongst the reddest stars known, with a lovely reddish hue when seen in binoculars. Read more Position(2000): RA 23 46 23.5165, Dec +03 29 12.519
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Auriga/California molecular cloud
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Title: A First Look at the Auriga-California Giant Molecular Cloud With Herschel and the CSO: Census of the Young Stellar Objects and the Dense Gas Authors: Paul M. Harvey, Cassandra Fallscheer, Adam Ginsburg, Susan Terebey, Philippe Andre, Tyler L. Bourke, James Di Francesco, Vera Konyves, Bre...
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V371 Persei
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Title: V371 Per - A Thick-Disk, Short-Period F/1O Cepheid Authors: Patrick Wils, Arne A. Henden, Stelios Kleidis, E.G. Schmidt, Doug L. Welch V371 Per was found to be a double-mode Cepheid with a fundamental mode period of 1.738 days, the shortest among Galactic beat Cepheids, and an unusually hig...
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Gliese 86b
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News Briefing: Scientists Make New Discovery About Planets Outside Our Solar System.
• Michael Turner, head of NSF's Directorate of Mathematical and Physical Sciences
• Geoffrey Marcy, University of California, Berkeley
• Paul Butler, Carnegie Institution of...
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HD 44179
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Space dust annoys astronomers just as much as the household variety when it interferes with their observations of distant stars. And yet space dust also poses one of the great mysteries of astronomy. "We not only do not know what the stuff is, but we do not know where it is made or how it gets into sp...
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Balbinot 1
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Title: A new Milky Way halo star cluster in the Southern Galactic Sky Authors: Eduardo Balbinot, B. X. Santiago, L. da Costa, M. A. G. Maia, S. R. Majewski, D. Nidever, H. J. Rocha-Pinto, D. Thomas, R. H. Wechsler, B. Yanny We report on the discovery of a new Milky Way companion stellar system located at...
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SNR CTA 1
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Scientists were putting a new space telescope through its paces when they found something odd -- a pulsating star, or pulsar, beaming only in gamma rays. The discovery, published in this week's issue of Science, is the first finding from NASA's Fermi Gamma Ray Space Telescope, which was launched in...
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