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Bok globule CB67
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Title: Imaging polarimetry of the rotating Bok globule CB67 Author: M.S. Prokopjeva, A.K.Sen, V.B.Il'in, N.V.Voshchinnikov, R.Gupta Polarimetric observations of about 50 stars located in a close vicinity of the Bok globule CB67 having significantly nonspherical shape and rapid rotation ar...
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RCW 86
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Title: RCW 86: A Type Ia Supernova in a Wind-Blown Bubble Authors: Brian J. Williams, William P. Blair, John M. Blondin, Kazimierz J. Borkowski, Parviz Ghavamian, Knox S. Long, John C. Raymond, Stephen P. Reynolds, Jeonghee Rho, P. Frank Winkler We report results from a multi-wavelength analysis...
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NGC 5102
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Title: The Recent Star Formation History of NGC 5102 Authors: Sylvie F. Beaulieu, Kenneth C. Freeman, Sebastian L. Hidalgo, Colin A. Norman, Peter J. Quinn We present Hubble Space Telescope photometry of young stars in NGC 5102, a nearby gas-rich post-starburst S0 galaxy with a bright young stell...
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HD 179949
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Title: First Observation of Planet-Induced X-ray Emission: The System HD 179949 Authors: S. H. Saar, M. ****z, V. L. Kashyap, J. C. Hall We present the first observation of planet-induced stellar X-ray activity, identified for the HD 179949 system, using Chandra / ACIS-S. The HD 179949 system con...
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T Pyxidis
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1 2 3
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T Pyxidis is a recurrent nova and nova remnant in the constellation Pyxis. Its usual apparent magnitude is 15.5, but there occurred eruptions with maximal apparent magnitude of about 7.0 in the years 1890, 1902, 1920, 1944 and 1966. It is a binary star about 6000 light years from Earth. [url=http://...
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Messier 4
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Title: The helium content of globular clusters: NGC6121 (M4) Authors: S. Villanova, D. Geisler, G. Piotto, R. Gratton He has been proposed as a key element to interpret the observed multiple MS, SGB, and RGB, as well as the complex horizontal branch (HB) morphology. Stars belonging to the bluer par...
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NGC 1893
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Title: Pre-main sequence variable stars in young open cluster NGC 1893 Authors: Sneh Lata, A. K. Pandey, W. P. Chen, G. Maheswar, Neelam Chauhan We present results of multi-epoch (fourteen nights during 2007-2010) V-band photometry of the cluster NGC 1893 region to identify photometric variabl...
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NGC 242
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NGC 242 (also NGC 241, MCG -5-23-3 and PGC 26981) is a magnitude +12.1 open star cluster located in the constellation Tucana. The cluster was discovered by British astronomer John Herschel using a 47.5 cm (18.7 inch) f/13 speculum reflector at the Cape of Good Hope on the 11th April 1834. The cluster w...
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PN A66 33
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Chance Meeting Creates Celestial Diamond Ring Astronomers using ESO's Very Large Telescope in Chile have captured this eye-catching image of planetary nebula PN A66 33 - usually known as Abell 33. Created when an aging star blew off its outer layers, this beautiful blue bubble is, by chance, align...
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G0.253+0.016
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Title: The Galactic Center Cloud G0.253+0.016: A Massive Dense Cloud with low Star Formation Potential Authors: Jens Kauffmann (1), Thushara Pillai (1), Qizhou Zhang (2) ((1) Caltech, (2) Harvard-Smithsonian CfA) We present the first interferometric molecular line and dust emission maps for...
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Messier 50
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Messier 50 (also M50, NGC 2323, Collinder 124 and OCL 559) is a magnitude +5.9 open star cluster located 3200 light years away in the constellation Monoceros. The cluster contains about 200 stars. The brightest of these has an observed brightness of +9.0 and belongs to the spectral type B8. The clus...
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NGC 4230
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NGC 4230 (also Collinder 253 and OCL 874) is a magnitude +9.4 open star cluster located in the constellation Centaurus. The cluster was discovered by British astronomer John Herschel using a 47.5 cm (18.7 inch) f/13 speculum reflector at the Cape of Good Hope on the 5th April 1837. Right Ascension 1...
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Transitional disks
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Title: Herschel evidence for disk flattening or gas depletion in transitional disks Author: J. T. Keane, I. Pascucci, C. Espaillat, P. Woitke, S. Andrews, I. Kamp, W.-F. Thi, G. Meeus, W. R. F. Dent Transitional disks are protoplanetary disks characterised by reduced near- and mid-infrared emis...
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V4334 Sgr
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Title: A dense disk of dust around the born-again Sakurai's object Authors: Olivier Chesneau (FIZEAU), G.C. Clayton (LSU), F. Lykou (the University of Manchester), O. De Marco (AMNH), Ch. Hummel (ESO), F. Kerber (ESO), E. Lagadec (the University of Manchester), J. Nordhaus (Princeton Universi...
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Luyten 726-8AB
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Title: Transit of Luyten 726-8 within 1 ly from Epsilon Eridani Authors: Igor Yu. Potemine This is one of results from our program of massive simulations of close encounters for all nearby stars. Epsilon Eridani is an extremely interesting star having one confirmed planet and multiple asteroid an...
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