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B2 1144+35B
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Title: B2 1144+35B, a giant low power radio galaxy with superluminal motion. Orientation and evidence for recurrent activity Authors: G. Giovannini, M. Giroletti, G.B. Taylor The goal of this work is a detailed study of the nearby, low power radio galaxy B2 1144+35B. For this purpose, we performe...
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CL0958+4702
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Four massive galaxies are colliding in the largest galactic merger ever seen, new observations reveal. The smash-up is shedding light on how the biggest galaxies in the universe form and why many of them stopped giving birth to stars billions of years ago. Astronomers classify mergers according t...
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GRB 971214
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GRB 971214 is a gamma ray burst observed in 1997. It originated 12 billion light years away. For a brief period this was thought by some researchers to have been the most energetic event observed in the universe, but this claim has since been discredited. R.A. = 11h56m30s, Decl. = +65o12'.6 (equino...
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Dwarf Irregular Galaxy DDO 53
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Title: Diffuse Ionised Gas in the Dwarf Irregular Galaxy DDO 53 Authors: A.M. Hidalgo-Gamez (ESFM-Ipn) The spectral characteristics throughout the dwarf irregular galaxy DDO 53 are studied. The results are very similar to those for other irregular galaxies: high excitation and low values of th...
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AWM 7 galaxy cluster
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Title: Suzaku Observations of AWM 7 Cluster of Galaxies: Temperature, Abundance and Bulk Motions Authors: Kosuke Sato, Kyoko Matsu****a, Yo****aka Ishisaki, Noriko Y. Yamasaki, Manabu Ishida, Shin Sasaki, Takaya Ohashi We carried out 3 observations of the cluster of galaxies AWM 7, for the cen...
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Virgo Early-Type Dwarfs
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Title: Virgo Early-Type Dwarfs in ALFALFA Authors: Rebecca A. Koopmann Early-type dwarf galaxies dominate cluster populations, but their formation and evolutionary histories are poorly understood. The ALFALFA (Arecibo Legacy Fast ALFA) survey has completed observations of the Virgo Clust...
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Nearby radio galaxies
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Title: A Chandra study of particle acceleration in the multiple hotspots of nearby radio galaxies Authors: M. J. Hardcastle, J. H. Croston, R. P. Kraft We present Chandra observations of a small sample of nearby classical double radio galaxies which have more than one radio hotspot in at least one o...
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Abell 576
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Title: The Merger in Abell 576: A Line of Sight Bullet Cluster? Authors: Renato A. Dupke, Nestor Mirabal, Joel N. Bregman, August E. Evrard Using a combination of Chandra and XMM observations, we confirmed the presence of a significant velocity gradient along the NE/E-W/SW direction in the intrac...
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Galaxy Disks
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Title: Three Types of Galaxy Disks Authors: M.Pohlen (1), P. Erwin (2), I. Trujillo (3), J.E. Beckman (3) (Kapteyn Astronomical Institute, Groningen, NL (1), Max-Planck-Institut fuer extraterrestrische Physik, Garching, D (2), Instituto de Astrofisica de Canarias, La Laguna, E (3)) We prese...
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NGC 5135
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NGC 5135 is a barred spiral, similar in some ways to NGC 1365. Both galaxies are members of the IRAS "Bright Galaxy Sample," meaning that they are very luminous in the infrared as a result of vigorous star-forming activity. Both have very strong bars. Both harbor an active galactic nucl...
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Subaru Deep Field
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Scientists at the University of Tokyo, University of Kyoto, National Astronomical Observatory of Japan, and the University of Hawaii teamed up to obtain the deepest infrared image of an almost empty field in the sky near the celestial pole.
[img]http://img.photobucket.com/albums/v328/...
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Polar-ring galaxy
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Title: HUDF 1619 - a candidate polar-ring galaxy in the Hubble Ultra Deep Field Authors: V.P. Reshetnikov, R.-J. Dettmar A good candidate for a polar-ring galaxy has been detected in the Hubble Ultra Deep Field (HUDF). The galaxy HUDF 1619 (V~25 mag, z~1) is the most distant object of this type know...
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NGC821
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Title: A deep Chandra look at the low L_B elliptical NGC821: X-ray binaries, a galactic wind and emission at the nucleus Authors: S. Pellegrini (1), A. Baldi (2), D.W. Kim (2), G. Fabbiano (2), R. Soria (2,3), A. Siemiginowska (2), M. Elvis (2) ((1) Astronomy Dept., Bologna University, Italy; (2) Ha...
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3C438
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Evidence for an awesome upheaval in a massive galaxy cluster was discovered in an image made by NASA's Chandra X-ray Observatory. The origin of a bright arc of ferociously hot gas extending over two million light years requires one of the most energetic events ever detected. The cluster of galaxies...
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Luminous Red Novae
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Title: Spitzer Observations of the New Luminous Red Novae M85\,OT2006-1
Authors: A. Rau, S.R. Kulkarni, E.O. Ofek, L. Yan
M85OT2006-1 is the latest and most brilliant addition to the small group of known Luminous Red Novae (LRNe). An identifying characteristic of the prev...
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