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PTF09fox and PTF09foz
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Two nearby magnitude 18.8 supernova, PTF09fox and PTF09foz, were discovered on the 19th October, 2009, by the Palomar Transient Factory. PTF09fox Position (2000): RA 23:20:48.009, Dec +32:30:08.60 z = 0.07 PTF09foz Position (2000): RA 00:42:11.719, Dec -09:52:52.47 z = 0.05
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ADBS 113845+2008
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Title: Quiescent Isolation: The Extremely Extended HI Halo of the Optically Compact Dwarf Galaxy ADBS 113845+2008 Authors: John M. Cannon, John J. Salzer, Jessica L. Rosenberg, We present new optical imaging and spectroscopy and H i spectral line imaging of the dwarf galaxy ADBS 113845+2008 (he...
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NGC 2623
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A recent NASA/ESA Hubble Space Telescope image captures what appears to be one very bright and bizarre galaxy, but is actually the result of a pair of spiral galaxies that resemble our own Milky Way smashing together at breakneck speeds. The product of this dramatic collision, called NGC 2623, or Ar...
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NGC 4593
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Title: A Suzaku Observation of NGC 4593: Illuminating the Truncated Disk Authors: A. Markowitz (1), J. N. Reeves (2) We report results from a 2007 Suzaku observation of the Seyfert 1 AGN NGC 4593. The narrow Fe K alpha emission line has a FWHM width ~4000 km/s, indicating emission from >~ 5000 Rg. T...
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SDSS J075234.33+292049.8
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Title: On the Nature of the Apparent Ring Galaxy SDSS J075234.33+292049.8 Authors: Noah Brosch, Alexei Y. Kniazev, Alexei Moiseev, Simon A. Pustilnik An object classified as a galaxy in on-line data bases and revealed on sky survey images as a distant ring galaxy is a rare case of polar ring galaxy w...
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Compact elliptical galaxies
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Une population de galaxies elliptiques compactes détectées avec l'Observatoire Virtuel Les galaxies elliptiques compactes (cE) sont des objets rares, qui sont observés en général au voisinage de galaxies massives, comme Messier 32 autour de la galaxie d'Andromède. Comme leur métallicité es...
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Supernova 2009jg
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A magnitude15.7 supernova, 2009jg, was discovered on the 22nd September, 2009, by the Catalina Real-Time Transient Survey (CRTS), in an anonymous galaxy in the constellation Ophiuchus. The supernova is located 0.3" west and 3.5" south from the center of the galaxy. As yet the type is...
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Supernova 2008iz
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Title: The radio lightcurve of SN 2008iz in M82 revealed by Urumqi observations Authors: N. Marchili, I. Marti-Vidal, A. Brunthaler, T.P. Krichbaum, P. Mueller, X. Liu, H.-G. Song, U. Bach, R. Beswick, J.A. Zensus We report on a set of 5 GHz Urumqi observations of the galaxy M82, made between August...
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M31N 2007-12b
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Title: Optical and X-ray Observations of M31N 2007-12b: An Extragalactic Recurrent Nova with a Detected Progenitor? Authors: M. F. Bode (1), M. J. Darnley (1), A. W. Shafter (2), K. L. Page (3), O. Smirnova (4), G. C. Anupama (5), T. Hilton (1) ((1) Astrophysics Research Institute, Liverpool John M...
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1 ES 1218+30.4
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Title: Spectral modelling of 1 ES 1218+30.4 Authors: M. Rüger, F. Spanier, K. Mannheim We employ a time-dependent synchrotron-self-Compton code for modelling contemporaneous multiwavelength data of the blazar 1 ES 1218+30.4 The input parameters of the model are used to infer physical paramet...
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Void Phenomenon
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Title: The Void Phenomenon Revisited Authors: Riccardo Giovanelli The Void Phenomenon consists in the apparent discrepancy between the number of observed dwarf halos in cosmic voids and that expected from CDM simulations. We approach the problem considering the challenging prospects of dete...
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CASSOWARY 20
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Title: CASSOWARY 20: a Wide Separation Einstein Cross Identified with the X-shooter Spectrograph Authors: Max Pettini (1), Lise Christensen (2), Sandro D'Odorico (2), Vasily Belokurov (1), N. Wyn Evans (1), Paul C. Hewett (1), Sergey Koposov (3), Elena Mason (2), Joel Vernet (2) ((1) Institute...
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Hydra A
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Black Hole Pumps Iron Credit X-ray: NASA/CXC/U.Waterloo/C.Kirkpatrick et al.; Radio: NSF/NRAO/VLA; Optical: Canada-France-Hawaii-Telescope/DSS This composite image of the Hydra A galaxy cluster shows 10-million-degree gas observed by Chandra in blue and jets of radio emission obse...
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Andromeda XXI and Andromeda XXII
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Title: PAndAS' cubs: discovery of two new dwarf galaxies in the surroundings of the Andromeda and Triangulum galaxies Authors: Nicolas F. Martin, Alan W. McConnachie, Mike Irwin, Lawrence M. Widrow, Annette M. N. Ferguson, Rodrigo A. Ibata, John Dubinski, Arif Babul, Scott Chapman, Mark Fardal...
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IC 4933
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Title: The Nuclear Ring in the Barred Spiral Galaxy IC 4933 Authors: Stuart D. Ryder (1), Samuel Illingworth (2), Robert Sharp (1), Catherine Farage (3) ((1) AAO, (2) University of Leicester, (3) Australian National University) We present infrared imaging from IRIS2 on the Anglo-Australian Tel...
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