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W Puppis
(Preview)
Maxima of long period variable W Puppis on the 16th July, 2010. Magnitude: 8.4-12.4 Type: Mira Position (2000): RA 07 45 57.3563, Dec -42 11 43.978
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Blobrana
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2
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BW Sculptoris
(Preview)
The short period cataclysmic variable BW Sculptoris is in outburst. Date: 21st October, 2011 Magnitude range: 9.6 - 16.5 Type: WZ Sge-type dwarf nova Position (J2000): R.A. 23 53 00.86 | Dec. -38° 51' 46.6''
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Blobrana
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2
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CF Octantis
(Preview)
Title: Bayesian approach to cyclic activity of CF Oct Authors: Ana P. Borisova, Valeri V. Hambaryan, John L. Innis Bayesian statistical methods of Gregory-Loredo and the Bretthorst generalisation of the Lomb-Scargle periodogram have been applied for studying activity cycles of the early K-ty...
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Blobrana
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RX J004222.8+411536
(Preview)
Title: Reinstating the M31 X-ray system RX J0042.3+4115 as a black hole X-ray binary, and compelling evidence for an extended corona Authors: R. Barnard, M. R. Garcia, S. S. Murray The M31 X-ray source RX J0042.3+4115 was originally identified as a black hole binary because it displayed character...
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Blobrana
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Z Ceti
(Preview)
Maxima of long period variable Z Ceti on the 18th November, 2011 Magnitude range: 8.9-13.5 Period: 184.81 days Type: Mira Position (J2000): R.A. 01 06 45.128 | Dec. -01° 28' 52.87'' Google earth file: Z Ceti.kmz (1kb, kmz)
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Blobrana
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W Centauri
(Preview)
Maxima of long period variable W Centauri on the 18th November, 2011 Magnitude range: 8.5-13.2 Period: 201.6 days Type: Mira Position (J2000): R.A. 11 55 01.32637 | Dec. -59° 15' 13.5314'' Google earth file: W Centauri.kmz (1kb, kmz)
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Blobrana
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Y Delphini
(Preview)
Maxima of long period variable Y Delphini on the 18th November, 2011 Magnitude range: 9.9-14.0 Period: 468.4 days Type: Mira Position (J2000): R.A. 20 41 38.98 | Dec. +11° 52' 38.2'' Google earth file: Y Delphini.kmz (1kb, kmz)
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Blobrana
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OB Runaway Stars
(Preview)
Title: The Origin of OB Runaway Stars Authors: Michiko Fujii, Simon Portegies Zwart About 20% of all massive stars in the Milky Way have unusually high velocities, the origin of which has puzzled astronomers for half a century. We argue that these velocities originate from strong gravitational in...
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Blobrana
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1
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UU Aquarii and KR Aurigae
(Preview)
Title: Flickering study of nova like systems KR Aur and UU Aqr Authors: Andrej Dobrotka, Shin Mineshige, Jorge Casares We present a study of the flickering activity in two nova like systems KR Aur and UU Aqr. We applied a statistical model of flickering simulations in accretion discs based on turbul...
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Blobrana
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V378 Pegasi
(Preview)
Title: The Orbital Period and Negative Superhumps of the Nova-Like Cataclysmic Variable V378 Pegasi Authors: F. A. Ringwald, Kenia Velasco, Jonathan J. Roveto, Michelle E. Meyers A radial velocity study is presented of the cataclysmic variable V378 Pegasi (PG 2337+300). It is found to have an or...
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Blobrana
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HD 100655
(Preview)
Title: A Planetary Companion to the Intermediate-Mass Giant HD 100655 Authors: Masashi Omiya, Inwoo Han, Hideyuki Izumiura, Byeong-Cheol Lee, Bun'ei Sato, Kang-Min Kim, Tae Seog Yoon, Eiji Kambe, Michitoshi Yoshida, Seiji Masuda, Eri Toyota, Seitaro Urakawa, Masahide Takada-Hidai A precis...
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HD 149427
(Preview)
Title: Implications of the non-detection of X-ray emission from HD 149427 Authors: Matthias Stute (1), Gerardo J. M. Luna (2,3) ((1) Eberhard Karls Universitaet Tuebingen, Germany (2) Instituto de Ciencias Astronomicas, de la Tierra y del Espacio, San Juan, Argentina (3) Harvard-Smithsonian...
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Blobrana
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WR142b
(Preview)
Title: Discovery of a Wolf-Rayet Star Through Detection of its Photometric Variability Authors: Colin Littlefield, Peter Garnavich, G. H. Howie Marion, Jozsef Vinko, Colin McClelland, Terrence Rettig, J. Craig Wheeler We report the serendipitous discovery of a heavily reddened Wolf-Rayet s...
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PG1018-047
(Preview)
Title: PG1018-047: the longest period subdwarf B binary Authors: J. Deca, T. R. Marsh, R. H. Ostensen, L. Morales-Rueda, C. M. Copperwheat, R. A. Wade, M. A. Stark, P. F. L. Maxted, G. Nelemans, U. Heber About 50% of all known hot subdwarf B stars (sdBs) reside in close (short period) binaries, for whi...
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Dragonfish Association
(Preview)
Title: Spectroscopic Confirmation of the Dragonfish Association: The Galaxy's Most Luminosity OB Association Authors: Mubdi Rahman, Dae-Sik Moon, Christopher D. Matzner Young OB associations with masses greater than 10^4 solar masses have been inferred to exist in the Galaxy but have largel...
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