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2XMM J011028.1-460421
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Astronomers sniff intermediate mass black hole Astronomers from the University of Leicester and the CESR astrophysics lab in Toulouse reckon they've spotted an intermediate mass black hole - one of an elusive group of beasts weighing in between single star black holes and their supermassive cou...
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18
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Ultra-Compact Dwarf (UCDs) galaxies
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Deep Gemini imaging of the cluster of galaxies Hydra I (also known as Abell 1060) at a distance of 54 Mpc (176 million light-years) has revealed an abundance of massive luminous metal-rich globular clusters that appears to impersonate ultra-compact dwarf galaxies. This is the richest population...
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9
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Fast radio bursts
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Radio-burst discovery deepens astrophysics mystery The discovery of a split-second burst of radio waves using the Arecibo radio telescope in Puerto Rico provides important new evidence of mysterious pulses that appear to come from deep in outer space. The findings by an international team of as...
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8
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Big Bang
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Kent State faculty and graduate students are among a team of physicists who recreated the material essence of the universe as it would have been mere microseconds after the Big Bang—a quark-gluon plasma.
This huge insight allows scientists to study matter in its earliest form and comes from an...
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74
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Abell 2744
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Title: Creation of cosmic structure in the complex galaxy cluster merger Abell 2744 Authors: J. Merten, D. Coe, R. Dupke, R. Massey, A. Zitrin, E.S. Cypriano, N. Okabe, B. Frye, F. Braglia, Y. Jimenez-Teja, N. Benitez, T. Broadhurst, J. Rhodes, M. Meneghetti, L.A. Moustakas, L. Sodre Jr., J. Krick...
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11
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Dust
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1 2 3
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The hit song that proclaimed, "All we are is dust in the wind," may have some cosmic truth to it. New findings from NASA's Spitzer Space Telescope suggest that space dust -- the same stuff that makes up living creatures and planets -- was manufactured in large quantities in the winds of blac...
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27
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NGC 4151
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Title: The Black Hole Mass of NGC 4151: Comparison of Reverberation Mapping and Stellar Dynamical Measurements Authors: Christopher A. Onken, Monica Valluri, Bradley M. Peterson, Richard W. Pogge, Misty C. Bentz, Laura Ferrarese, Marianne Vestergaard, D. Michael Crenshaw, Sergey G. Sergeev...
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11
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UGC 7321
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Title: Dark matter dominance at all radii in the superthin galaxy UGC 7321 Authors: Arunima Banerjee (IISc, India), Lynn D. Matthews (CFA-Harvard, USA), Chanda J. Jog (IISc, India) We model the shape and density profile of the dark matter halo of the low surface brightness, superthin galaxy UGC 73...
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RX J1347.5-1145
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Title: CARMA Measurements of the Sunyaev-Zel'dovich Effect in RXJ1347.5-1145 Authors: Thomas J. Plagge, Daniel P. Marrone, Zubair Abdulla, Massimiliano Bonamente, John E. Carlstrom, Megan Gralla, Christopher H. Greer, Marshall Joy, James W. Lamb, Erik M. Leitch, Adam Mantz, Stephen Muchov...
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Quasar Ton 34
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Title: The unusual UV continuum of quasar Ton 34 and the possibility of crystalline dust absorption Authors: Luc Binette, Yair Krongold Luminous quasars are known to display a sharp steepening of the continuum near 1100A. This spectral feature is not well fitted by current accretion disk models,...
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Our black hole
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1 2 3
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A group of young stars has been spotted dangerously close to the giant black hole at the centre of our Galaxy - only the second such group known to be braving the region's extreme conditions.
Two years ago, astronomer...
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29
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The Reionisation epoch
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A new simulation method recently developed by Stanford astrophysicist Marcelo Alvarez and Science Undergraduate Laboratory Internship student Patrick Ho spurns complexity to make headway in understanding the early universe's structure formation. Collapsing a complicated trajectory int...
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10
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NGC 891
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Title: Lopsided galaxies: the case of NGC 891 Authors: M. Mapelli (1), B. Moore (1), J. Bland-Hawthorn (2) ((1) University of Zürich, (2) University of Sydney) It has been known for a long time that a large fraction of disc galaxies are lopsided. We simulate three different mechanisms that can induc...
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8
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NGC 4013
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Title: Discovery of a Giant Stellar Tidal Stream Around the Disk Galaxy NGC 4013 Authors: David Martinez-Delgado (1,2), Michael Pohlen (3), R. Jay Gabany (4), Steven R. Majewski (5), Jorge Penarrubia (6), Chris Palma (7) ((1) Instituto de Astrofisica de Canarias E, (2) Max-Planck Institut fuer A...
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4
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Matorny-Terentev Cluster RGZ-CL J0823.2+0333
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Citizen scientists discover huge galaxy cluster Two volunteer astronomers have had a galaxy cluster named after them after finding the galaxy in an international citizen science project co-led by ANU. The two Russians identified the huge C-shaped galaxy cluster from much smaller images of cosm...
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