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LkHa 233
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Title: A HST study of the environment of the Herbig Ae/Be star LkHa 233 and its bipolar jet Authors: Stanislav Yu. Melnikov, Jens Woitas, Jochen Eislöffel, Francesca Bacciotti, Ugo Locatelli, Thomas P. Ray We present the results of HST/STIS and WFPC2 observations of LkHa 233 and its environment. L...
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LS Hercules
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Title: The Unique Frequency Spectrum of the Blazhko RRc Star LS Her Authors: Patrick Wils, Stelios Kleidis, Eric Broens The Blazhko effect in RR Lyrae stars is still poorly understood theoretically. Stars with multiple Blazhko periods or in which the Blazhko effect itself varies are particularl...
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IU Virginis
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Judi Provencal is star-struck, but not so much by the glitz and glam of Hollywood. You have to look heavenward through a telescope to see the object of her fascination--to pale stars called white dwarfs, their brilliance faded because all of their nuclear fuel has been burned up. A white dwarf is a sta...
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SDSS 1507+02
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Title: SDSS 1507+02: A Halo Cataclysmic Variable? Authors: J. Patterson, J. R. Thorstensen, C. Knigge We report a photometric and spectroscopic study of the peculiar cataclysmic variable SDSS 1507+52. The star shows very deep eclipses on the 67 minute orbital period, and those eclipses are easi...
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GJ 1046
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Title: A probable close brown dwarf companion to GJ 1046 (M2.5V) Authors: M. Kürster, M. Endl, S. Reffert Context. Brown dwarf companions to stars at separations of a few AU or less are rare objects, and none have been found so far around early-type M dwarfs M0V-M5V). With GJ 1046 (M2.5V), a strong can...
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S254-S258
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Title: Spitzer observations of the Massive star forming complex S254-S258: structure and evolution Authors: L. Chavarria, L. Allen, J. L. Hora, C. Brunt, G. G. Fazio We present Spitzer-IRAC, NOAO 2.1meter-Flamingos, Keck-NIRC, and FCRAO-SEQUOIA observations of the massive star forming comp...
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Cha Halpha 2
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Title: Confirmation of the binary status of Cha Halpha 2 - a very young low-mass binary in Chamaeleon Authors: T. O. B. Schmidt (1), R. Neuhäuser (1), N. Vogt (2 and 3), A. Seifahrt (1), T. Roell (1), A. Bedalov (1) ((1) Friedrich-Schiller-Universität Jena, Astrophysikalisches Institut und Univer...
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AA Tauri
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Researchers using NASA's Spitzer Space Telescope have discovered large amounts of simple organic gases and water vapour in a possible planet-forming region around an infant star, along with evidence that these molecules were created there. They've also found water in the same zone around two ot...
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XI Lupus Interstellar Cloud
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Title: The Spitzer c2d Survey of Large, Nearby, Interstellar Clouds. XI. Lupus Observed With IRAC and MIPS Authors: Bruno Merin, Jes Jorgensen, Loredana Spezzi, Juan M. Alcala, Neal J. Evans II, Paul M. Harvey, Nicholas Chapman, Tracy Huard, Ewine F. van Dishoeck, Fernando Comeron We present c2d...
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V570 Persei
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Title: Asiago eclipsing binaries program. III. V570 Per Authors: L. Tomasella (1), U. Munari (1), S. Cassisi (2), A. Siviero (1), S. Dallaporta (3), R. Sordo (1), T. Zwitter (4) ((1) INAF Astron. Obs. Padova, Italy (2) INAF Astron. Obs. Teramo, Italy (3) AAVC, Trento, Italy (4) Dept. of Physics, Uni...
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NGC2371
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Probing a glowing bubble of gas and dust encircling a dying Sun-like star, NASA's Hubble Space Telescope reveals a wealth of previously unseen structures in planetary nebula NGC 2371. The remnant star visible at the centre of NGC 2371 is the super-hot core of the former red giant, now stripped of its...
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MS, S and C Stars
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Title: MS, S and C Stars in the Infrared. Luminosities and Mass Loss Rates Authors: R. Guandalini (Department of Physics, University of Perugia) In this note I present an outline of infrared (IR) photometric AGB properties, based on two samples of Galactic Long Period Variables (C- and S-type resp...
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CFBDS J005910.90-011401.3
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Title: CFBDS J005910.90-011401.3: reaching the T-Y Brown Dwarf transition? Authors: Philippe Delorme (LAOG), Xavier Delfosse (LAOG, OSUG), Loic Albert (CFHT), Etienne. Artigau, Thierry Forveille (LAOG, OSUG, CFHT), Céline Reylé (LAOB), France Allard (CRAL), Derek Homeier, Annie Robin (L...
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GSH 287+04-17
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Title: The "Carina Flare" Supershell: Probing the Atomic and Molecular ISM in a Galactic Chimney Authors: J. R. Dawson, N. Mizuno, T. Ohnishi, N. M. McClure-Griffiths, Y. Fukui The "Carina Flare" supershell, GSH 287+04-17, is a molecular supershell originally discovere...
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VV Serpens
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Title: Modelling Spitzer observations of VV Ser. I. The circumstellar disk of a UX Orionis star
Authors: Klaus M. Pontoppidan, Cornelis P. Dullemond, Geoffrey A. Blake, A. C. Adwin Boogert, Ewine F. van Dishoeck, Neal J. Evans, Jacqueline Kessler-Silacci, Fred Lahuis
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