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SDSSJ212531.92-010745.9
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Title: New Light Curves and Spectra of the close PG1159 Binary System SDSSJ212531.92-010745.9 Authors: Sonja Schuh, Thorsten Nagel, Iris Traulsen, Benjamin Beeck Methods to measure masses of PG1159 stars in order to test evolutionary scenarios are currently based on spectroscopic masses or a...
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PSR B1516+02B
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Title: Super-Massive Neutron Stars Authors: Paulo C. C. Freire We present here the results of Arecibo timing of PSR B1516+02B, a 7.95-ms pulsar in a binary system with a ~0.17 solar mass companion and an orbital period of 6.85 days located in the globular cluster M5. The eccentricity of the orbit (e =...
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U1425-01208594
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Title: Measuring the period of the delta Scuti variable U1425-01208594 in Cassiopeia Authors: Jeremy Shears, David Boyd, Steve Brady, Ian Miller, Roger Pickard The variability of U1425-01208594 was recently discovered by Schmidtobreick et al, who suggested that it is a member of the delta Scut...
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Taurus Transitional Disks
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Title: On the Diversity of the Taurus Transitional Disks: UX Tau A & Lk Ca 15 Authors: C. Espaillat, N. Calvet, P. D'Alessio, J. Hernandez, C. Qi, L. Hartmann, E. Furlan, D. M. Watson The recently recognized class of "transitional disk" systems consists of young stars with optically...
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V609 Aquilae
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Title: New Insights Into the Nature of the Eclipsing System V609 Aquilae Authors: David G. Turner, Elena A. Panko, Olga Sergienko, David J. Lane, Daniel J. Majaess A photometric study of the Near Contact Binary (NCB) system V609 Aql reveals it to be the westernmost star of a close double, with bright...
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GCRT J1745-3009
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GCRT J1745-3009 is a newly-discovered transient, bursting low-frequency radio source which lies in the direction of the galactic centre. Read more Right ascension 17h 45m 5.1s Declination -30° 09 56
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Planemos
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Two free-floating objects have been found orbiting each other for the first time. The find raises questions about how such small objects could form.
Bodies that have the mass of a planet but are not bound to a star are called planetary mass objects, or "[url=http://www.activeboard.com/forum...
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CU Virginis
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Title: CU Virginis - The First Stellar Pulsar
Authors: Barry J. Kellett (1), Vito Graffagnino (1), Robert Bingham (1 and 2), Tom W. B. Muxlow (3), Alastair G. Gunn (3) ((1)Rutherford Appleton Laboratory,(2)University of Strathclyde,(3)Jodrell Bank Observatory)
CU Virg...
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T Tauri star LkCa 19
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Title: Star Spot Induced Radial Velocity Variability in LkCa 19 Authors: Marcos Huerta, Christopher M. Johns-Krull, L. Prato, Patrick Hartigan, D. T. Jaffe We describe a new radial velocity survey of T Tauri stars and present the first results. Our search is motivated by an interest in detecting...
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Longmore 4
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Title: Transient Mass-Loss Events in the PG 1159 Central Star of Longmore 4 Authors: Howard E. Bond (Space Telescope Science Institute) A spectacular, transient mass-loss event in the hydrogen-deficient central star of the planetary nebula Longmore 4 was discovered in 1992 by Werner et al. Duri...
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1ES0229 + 200
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Title: The Spectrum of 1ES0229 + 200 and the Cosmic Infrared Background Authors: F.W. Stecker (NASA/GSFC) and S.T. Scully (James Madison Univ.) (Version v2) We examine the effect of gamma-ray absorption by the extragalactic infrared radiation on intrinsic spectra predicted for 1ES0229+200 an...
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HHL 73
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Title: The nature of HHL 73 from optical imaging and Integral Field Spectroscopy Authors: R.Lopez, S.F.Sanchez, B.Garcia-Lorenzo, R.Estalella, A.Riera, G.Busquet We present new results on the nature of the Herbig-Haro-like object 73 (HHL73, also known as [G84b] 11) based on narrow-band CCD H...
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RX J0002+6246
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Title: Unveiling the nature of RX J0002+6246 with XMM-Newton Authors: P. Esposito, A. De Luca, A. Tiengo, A. Paizis, S. Mereghetti, P. A. Caraveo The X-ray source RX J0002+6246 was discovered close to the supernova remnant CTB1 in a ROSAT observation performed in 1992. The source phenomenology (s...
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2MASSJ05352184-0546085
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Title: Detection of strong activity in the eclipsing binary brown dwarf 2MASSJ05352184-0546085 - A possible explanation for the temperature reversal Authors: A. Reiners, A. Seifahrt, K.G. Stassun, C. Melo, R.D. Mathieu We show high resolution spectra of the eclipsing brown dwarf binary 2MASS...
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Extreme Horizontal Branch Stars
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Title: Binaries among Extreme Horizontal Branch Stars in Globular Clusters Authors: C. Moni Bidin, M. Catelan, S. Villanova, G. Piotto, M. Altmann, Y. Momany, S. Moehler Following a review of our present knowledge about blue subdwarf stars in globular clusters, we present an overview of the resu...
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