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KOI-256
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Gravity-Bending Find Leads to Kepler Meeting Einstein NASA's Kepler space telescope has witnessed the effects of a dead star bending the light of its companion star. The findings are among the first detections of this phenomenon -- a result of Einstein's theory of general relativity -- in binary,...
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OGLE-LMC-CEP0227
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By discovering the first double star where a pulsating Cepheid variable and another star pass in front of one another, an international team of astronomers has solved a decades-old mystery. The rare alignment of the orbits of the two stars in the double star system has allowed a measurement of the Ce...
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RR Lyrae
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Title: Nonlinear asteroseismology of RR Lyrae Authors: L. Molnár, Z. Kolláth, R. Szabó, K. Kolenberg, S. Bryson, F. Mullally, S. E. Thompson The observations of the Kepler space telescope revealed that fundamental-mode RR Lyrae stars may show various radial overtones. The presence of multiple...
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Jonckheere 900
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Hubble Sees J 900 Masquerading as a Double Star The object in this image is Jonckheere 900 or J 900, a planetary nebula - glowing shells of ionised gas pushed out by a dying star. Discovered in the early 1900s by astronomer Robert Jonckheere, the dusty nebula is small but fairly bright, with a relativel...
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RX J0440.9+4431
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Title: XMM-Newton observation of the persistent Be/NS X-ray binary pulsar RX J0440.9+4431 Authors: N. La Palombara (1), L. Sidoli (1), P. Esposito (2), A. Tiengo (1,3), S. Mereghetti (1) ((1) INAF/IASF Milano, Italy, (2) INAF/OA Cagliari, Italy, (3) IUSS Pavia, Italy) Many X-ray accreting puls...
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mu Eridani
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Title: mu Eridani from MOST and from the ground: an orbit, the SPB component's fundamental parameters, and the SPB frequencies Authors: M. Jerzykiewicz, H. Lehmann, E. Niemczura, J. Molenda-akowicz, W. Dymitrov, M. Fagas, D.B. Guenther, M. Hartmann, M. Hrudková, K. Kamiski, A.F.J. Moffat, R. K...
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IRAS 04302+2247
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Title: Vertical settling and radial segregation of large dust grains in the circumstellar disk of the Butterfly Star Authors: Christian Gräfe, Sebastian Wolf, Stephane Guilloteau, Anne Dutrey, Karl Stapelfeldt, Klaus Pontoppidan, Jürgen Sauter Context: Circumstellar disks are considered...
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V479 Andromedae
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Title: Multiwavelength observations of V479 Andromedae: a close compact binary with an identity crisis Authors: Diego Gonzalez-Buitrago (1), Gagik Tovmassian (1), Sergey Zharikov (1), Lev Yungelson (2), Takamitsu Miyaji (1), Juan Echevarria (1), Andres Aviles (1), Gennady Valyavin (3) ((1...
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BM Orionis
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Title: Dramatic Evolution of the Disk-Shaped Secondary in the Orion Trapezium Star Theta1 Ori B1 (BM Ori): MOST Satellite Observations Authors: Stuart Weston, Hiroshi Takiguchi, Tim Natusch, Sergei Gulyaev The eclipsing binary Theta1 Orionis B1, variable star designation BM Ori, is the faint...
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KQ Monocerotis
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Title: Far-Ultraviolet Spectroscopy of the Nova-Like Variable KQ Monocerotis: A New SW Sextantis Star? Authors: Aaron Wolfe (1), Edward M. Sion (1), Howard E. Bond (2) ((1) Villanova University, (2) Pennsylvania State University and Space Telescope Science Institute) New optical spectra obt...
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IRAS 17163-3907
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Fried Egg Nebula Using the European Southern Observatory's Very Large Telescope (VLT), teams from The University of Manchester, among others, took the new picture showing for the first time a huge dusty double shell surrounding the central hypergiant. The star and its shells resemble an egg whit...
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HH 114
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Title: HH 114 MMS: a new chemically active outflow Authors: M. Tafalla, A. Hacar Context. A small group of bipolar protostellar outflows display strong emission from shock-tracer molecules such as SiO and CH3OH, and are generally referred to as "chemically active." The best-studied...
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HD 3980
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Title: Multi-element Doppler imaging of the CP2 star HD 3980 Authors: N. Nesvacil, T. Lüftinger, D. Shulyak, M. Obbrugger, W. Weiss, N. A. Drake, S. Hubrig, T. Ryabchikova, O. Kochukhov, N. Piskunov, N. Polosukhina In atmospheres of magnetic main-sequence stars, the diffusion of chemical eleme...
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HD 104237
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Title: Pre-main-sequence binaries with tidally disrupted discs: the Br gamma in HD 104237 Authors: P. J. V. Garcia, M. Benisty, C. Dougados, F. Bacciotti, J.-M. Clausse, F. Massi, A. Mérand, R. Petrov, G. Weigelt Active pre-main-sequence binaries with separations of around ten stellar radii pr...
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HD 190073
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HD190073, a star with a magnetic personality Researchers from the Observatoire de Paris and of the Service d'Astrophysique-Laboratoire AIM du CEA-Irfu have observed an unexpected change of direction of the fossil magnetic dipole of a young massive star, the Herbig star HD 190073. [url=http://...
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