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J125013.50+073441.5
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Hubble Sees a Swirl of Star Formation This beautiful, glittering swirl is named, rather poetically, J125013.50+073441.5. A glowing haze of material seems to engulf the galaxy, stretching out into space in different directions and forming a fuzzy streak in this image. It is a starburst galaxy - a n...
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IRAS 01072+4954
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Title: Is IRAS 01072+4954 a True-Seyfert 2? Hints from Near Infrared Integral Field Spectroscopy Authors: M. Valencia-S., J. Zuther, A. Eckart, M. Garcia-Marin, C. Iserlohe, G. Wright In contrast to the predictions of the unified model, some X-ray unobscured Seyfert 2 galaxies have been discov...
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4C+29.30
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Title: Deep Chandra X-ray Imaging of a Nearby Radio Galaxy 4C+29.30: X-ray/Radio Connection Authors: Aneta Siemiginowska (1), Lukasz Stawarz (2,3), Chi C. Cheung (4), Thomas L. Aldcroft (1), Jill Bechtold (5), D.J. Burke (1), Daniel Evans (1,6), Joanna Holt (7), Marek Jamrozy (3), Giulia Migli...
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NGC 3258
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Title: Ultra-Compact Dwarfs around NGC 3258 in Antlia Authors: Juan Pablo Caso (1 and 2), L. P. Bassino (1 and 2), T. Richtler (3), A. V. Smith Castelli (1 and 2), Favio Faifer (1 and 2) ((1) Facultad de Ciencias Astronómicas y Geofísicas de la Universidad Nacional de La Plata, and Instituto de Astrofí...
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2MASX J05210136-2521450
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Hubble Tells a Tale of Galactic Collisions When we look into the distant cosmos, the great majority of the objects we see are galaxies: immense gatherings of stars, planets, gas, dust, and dark matter, showing up in all kind of shapes. This Hubble picture registers several, but the galaxy catalogue...
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PKS 1502+036
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Title: The ordinary life of the gamma-ray emitting Narrow-Line Seyfert 1 galaxy PKS 1502+036 Authors: F. D'Ammando (Dep. of Physics, Univ. of Perugia, INAF-IRA Bologna), M. Orienti (INAF-IRA Bologna, Bologna University), A. Doi (ISAS, JAXA), M. Giroletti (INAF-IRA Bologna), D. Dallacasa (Bo...
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SDSSJ1506+54
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Title: A redline starburst: CO(2-1) observations of an Eddington-limited galaxy reveal star formation at its most extreme Authors: J. E. Geach (McGill), R. C. Hickox (Dartmouth), A. M. Diamond-Stanic (UCSD), M. Krips (IRAM), J. Moustakas (Siena College), C. A. Tremonti (Wisconsin-Madison),...
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PAndAS-48
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Title: A peculiar faint satellite in the remote outer halo of M31 Authors: Dougal Mackey, Avon Huxor, Nicolas Martin, Annette Ferguson, Aaron Dotter, Alan McConnachie, Rodrigo Ibata, Mike Irwin, Geraint Lewis, Charli Sakari, Nial Tanvir, Kim Venn We present Hubble Space Telescope imaging of a n...
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1ES 1927+654
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Title: 1ES 1927+654: a bare Seyfert 2 Authors: L. C. Gallo (1), C. MacMackin (1), R. Vasudevan (2), E. M. Cackett (3), A. C. Fabian (4), F. Panessa (5) ((1) Saint Mary's Univ. (2) Univ. of Maryland (3) Wayne State Univ. (4) IoA (5) IASF-INAF) 1ES 1927+654 is an active galactic nucleus (AGN) that appears...
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UM 625
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Title: UM 625 Revisited: Multiwavelength Study of A Seyfert 1 Galaxy with a Low-mass Black Hole Authors: Ning Jiang, Luis C. Ho, Xiao-bo Dong, Huan Yang, Junxian Wang UM 625, previously identified as a narrow-line active galactic nucleus (AGN), actually exhibits broad Ha and Hb lines whose width a...
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VGS_31
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Title: An Interacting Galaxy System Along a Filament in a Void Authors: B. Beygu, K. Kreckel, R. van de Weygaert, J. M. van der Hulst, J. H. van Gorkom Cosmological voids provide a unique environment for the study of galaxy formation and evolution. The galaxy population in their interior have signif...
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NGC 3198
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Title: HALOGAS: Extraplanar gas in NGC 3198 Authors: G. Gentile, G. I. G. Jozsa, P. Serra, G. H. Heald, W. J. G. de Blok, F. Fraternali, M. T. Patterson, R. A. M. Walterbos, T. Oosterloo We present the analysis of new, deep HI observations of the spiral galaxy NGC 3198, as part of the HALOGAS (Westerbork...
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HFLS3
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Star factory in the early Universe challenges galaxy evolution theory ESA's Herschel space observatory has discovered an extremely distant galaxy making stars more than 2000 times faster than our own Milky Way. Seen at a time when the Universe was less than a billion years old, its mere existence c...
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SHBL J001355.9-185406
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Title: Discovery of high and very high-energy emission from the BL Lac object SHBL J001355.9-185406 Authors: H.E.S.S. Collaboration: A. Abramowski, F. Acero, F. Aharonian, A.G. Akhperjanian, E. Angüner, G. Anton, S. Balenderan, A. Balzer, A. Barnacka, Y. Becherini, J. Becker Tjus, K. Bernlöh...
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Markarian 421
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Markarian 421 (Mrk 421, Mkn 421) is a blazar located in the constellation Ursa Major. The object is an active galaxy and a BL Lacertae object, and is a strong source of gamma rays. Read more
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