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Open cluster Berkeley 32
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Title: The old open clusters Berkeley 32 and King 11 Authors: Monica Tosi (1), Angela Bragaglia (1), Michele Cignoni (1,2) ((1): INAF-Osserv. Astron. Bologna (2): Astronomy Dept., Bologna Univ.) We have obtained CCD BVI imaging of the old open clusters Berkeley 32 and King 11. Using the synthetic...
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Bok Globule CB54
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Title: Star Formation in the Bok Globule CB54 Authors: David R. Ciardi, Cynthia Gomez Martin We present mid-infrared (10.4 \micron, 11.7 \micron, and 18.3 \micron) imaging intended to locate and characterise the suspected protostellar components within the Bok globule CB54. We detect and conf...
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Beta Aurigae
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Title: Eclipsing binaries observed with the WIRE satellite. II. beta Aurigae and non-linear limb darkening in light curves Authors: John Southworth (University of Warwick, UK), Hans Bruntt (University of Sydney, Australia), Derek L. Buzasi (US Air Force Academy) We present the most precise li...
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K7 binary star system
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Title: A new detached K7 dwarf eclipsing binary system Authors: T.B. Young, M.G. Hidas, J.K. Webb, M.C.B. Ashley, J.L. Christiansen, A. Derekas, C. Nutto We present an analysis of a new, detached, double-lined eclipsing binary system with K7 Ve components, discovered as part of the University of...
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18 Scorpii
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Title: The Sun-like activity of the solar twin 18 Scorpii Authors: Jeffrey C. Hall, Gregory W. Henry, G. Wesley Lockwood We present the results of 10 yr of complementary spectroscopic and photometric observations of the solar twin 18 Scorpii. We show that over the course of its ~7 year chromospheri...
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Widest Very Low Mass Binary
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imagine two tennis balls separated by 180 miles--yet still in orbit around each other. That's an accurate scale model for a remarkable pair of red stars which astronomers have discovered in the constellation Phoenix. The double star is the widest very low mass binary ever seen and may shed new l...
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Young Neutron Stars
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Title: Young Neutron Stars and Their Wind Nebulae
Authors: Patrick Slane
With Teragauss magnetic fields, surface gravity sufficiently strong to significantly modify light paths, central densities higher than that of a standard nucleus, and rotation periods of only hundredt...
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Planetary Nebula IC 2448
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Title: The Spitzer/IRS Infrared Spectrum and Abundances of the Planetary Nebula IC 2448 Authors: S. Guiles, J. Bernard-Salas, S. R. Pottasch, T. L. Roellig We present the mid-infrared spectrum of the planetary nebula IC 2448. In order to determine the chemical composition of the nebula, we use th...
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Dwarf Nova VW Hydri
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Title: Hubble Space Telescope Far Ultraviolet Spectroscopy of the Dwarf Nova VW Hyi in Superoutburst Authors: Jason Merritt, Christopher Night, Edward M. Sion We obtained three consecutive HST spectroscopic observations of a single superoutburst of the dwarf nova VW Hydri. The spectra cover t...
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HD74057
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7th magnitude eclipsing binary, 31 day period, 5 hour eclipse length. Position(J2000): 08:42:45.900 +31:51:41.00 Read more
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12 Bootis
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Title: 12 Bootis: the need for asteroseismic constraints
Authors: A. Miglio, J. Montalban, C. Maceroni, J. De Ridder, F. D'Antona
12 Bootis is a double-lined spectroscopic binary whose orbit has been resolved by interferometry. We present a detailed modelling of the syst...
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G11.2-0.3
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G11.2-0.3 is a circularly symmetric supernova remnant that contains a dense, rotating dead star at its centre, representing a textbook case of what the remnant of an exploding star should look like after a couple thousand years. When a massive star collapses, the outer layers of the star are blown a...
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The Hercules-Aquila Cloud
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Title: The Hercules-Aquila Cloud Authors: V. Belokurov (1), N.W. Evans (1), E.F. Bell (2), M.J. Irwin (1), P.C. Hewett (1), S. Koposov (2), C.M. Rockosi (3), G. Gilmore (1), D. B. Zucker (1), M. Fellhauer (1), M.I. Wilkinson (1), D.M. Bramich (1), S. Vidrih (1), H.-W. Rix (2), T.C. Beers (4), D.P. Sch...
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HV 11423 Coolest Supergiant
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Title: HV 11423: The Coolest Supergiant in the SMC Authors:[url=http://www.activeboard.com/forum.spark?forumID=58381&p=3&top...
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CV Velorum
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Title: The early-type close binary CV Velorum revisited Authors: K. Yakut, C. Aerts, Th. Morel Our goal was to improve the fundamental parameters of the massive close double-lined eclipsing B2.5V+B2.5V binary CV Velorum. We gathered new high-resolution echelle spectroscopy on 13 almost conse...
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