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Central Molecular Zone
(Preview)
[url=http://en.wikipedia.org/wiki/Central_Molecular_Zone]...
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NGC 6559
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Stars, Dust and Nebula in NGC 6559 When stars form, pandemonium reigns. A textbook case is the star forming region NGC 6559. Visible are red glowing emission nebulas of hydrogen, blue reflection nebulas of dust, dark absorption nebulas of dust, and the stars that formed from them. The firs...
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Upper Scorpius OB Association
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Title: A Large-Area Search for Low-Mass Objects in Upper Scorpius II: Age and Mass Distributions Authors: Catherine L. Slesnick, Lynne A. Hillenbrand, John M. Carpenter We present continued results from a wide-field, ~150 deg^2, optical photometric and spectroscopic survey of the northern pa...
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Tarantula nebula
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(Preview)
Hanging above the Large Magellanic Cloud (LMC) - one of our closest galaxies - in what some describe as a frightening sight, the Tarantula nebula is worth looking at in detail. Also designated 30 Doradus or NGC 2070, the nebula owes its name to the arrangement of its brightest patches...
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XTE J1752-223
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Title: Black hole candidate XTE J1752-223: Swift observations of canonical states during outburst Authors: P.A. Curran (1), T. J. Maccarone (2), P. Casella (2), P.A. Evans (3), W. Landsman (4), H.A. Krimm (4), C. Brocksopp (1), M. Still (5) ((1) MSSL-UCL, (2) U Southampton, (3) U Leicester, (4) NA...
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51 Ophiuchus
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Title: 51 Ophiuchus: A Possible Beta Pictoris Analog Measured with the Keck Interferometer Nuller Authors: Christopher C. Stark, Marc J. Kuchner, Wesley A. Traub, John D. Monnier, Eugene Serabyn, Mark Colavita, Chris Koresko, Bertrand Mennesson, Luke D. Keller We present observations of the 5...
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YY Herculis
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Title: Ellipsoidal effect in the symbiotic star YY Her Authors: M. Wiecek, M. Mikolajewski, T. Tomov, E. Swierczynski, C. Galan, P. Wychudzki A new estimation of the orbital period of YY Her on the base of our and published observations is presented. Phased light curves in RI bands show evidently el...
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HD 163296
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Title: The HD 163296 Circumstellar Disk in Scattered Light: Evidence of Time-Variable Self-Shadowing Authors: John P. Wisniewski (1), Mark Clampin (1), Carol A. Grady (1,2), David R. Ardila (3), Holland C. Ford (4), David A. Golimowski (4), Garth D. Illingworth (5), John E. Krist (6); ((1) NASA G...
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Palomar 2
(Preview)
Hubble Sees a Unique Cluster: One of the Hidden 15 Palomar 2 is part of a group of 15 globulars known as the Palomar clusters. These clusters, as the name suggests, were discovered in survey plates from the first Palomar Observatory Sky Survey in the 1950s, a project that involved some of the most well-...
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Neptune-Mass Exoplanets
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Title: Models of Neptune-Mass Exoplanets: Emergent Fluxes and Albedos Authors: David S. Spiegel (1), Adam Burrows (1), Laurent Ibgui (1), Ivan Hubeny (2), John A. Milsom (3) ((1) Princeton University, (2) Steward Observatory, (3) The University of Arizona) There are now many known exoplanets w...
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1A 0535+262
(Preview)
The accreting binary X-ray pulsar 1A 0535+262 was observed in outburst by the INTEGRAL satellite between 00:53 UT, 3rd August and 04:32 UT, 4th August, 2009. The Be/X-ray binary (HIP 26566) was discovered in 1975 during a giant outburst. Position(2000): RA= 05 38 54.5720; Dec= +26 18 56.822
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Milky Way Halo
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Using 20,000 stars observed by the Sloan Digital Sky Survey (SDSS-II), an international team of astronomers has discovered that the outer Milky Way is a mix of two distinct components rotating in opposite directions. "By examining the motions and chemical makeup of the stars, we can see that...
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Messier 75
(Preview)
Messier 75 (also known as M75 or NGC 6864) is a globular cluster in the constellation Sagittarius. It was discovered by Pierre Méchain in 1780 and included in Charles Messier's catalogue of comet-like objects that same year. Read more
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SNR W49B
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One of the first two "fossil" fireballs ever detected glows deep in the supernova remnant W49B, according to a new study based on data from the Japan-U.S. Suzaku x-ray observatory. In the composite picture above, red and green represent infrared images of the remnant taken by ground-ba...
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G35.20-0.74 N
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Title: A candidate circumbinary Keplerian disk in G35.20-0.74 N: A study with ALMA Authors: A. Sanchez-Monge, R. Cesaroni, M.T. Beltran, M.S.N. Kumar, T. Stanke, H. Zinnecker, S. Etoka, D. Galli, C.A. Hummel, L. Moscadelli, T. Preibisch, T. Ratzka, F.F.S. van der Tak, S. Vig, C.M. Walmsley, K.-S...
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