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PKS 2155--304
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Title: XMM-Newton observations of the TeV BL Lac object PKS 2155--304 in 2006: signature of inverse Compton X-ray emission? Authors: Y.H. Zhang (Tsinghua) This paper reports the first discovery of possible inverse Compton (IC) X-ray emission below 10 keV in the typical high-energy peaked BL Lac...
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CBR
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1 2 3 4 5 … 7
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20th April 2005
Cool spaces in the cosmic microwave background, thought to be the 'birthmarks' of galaxies and clusters of galaxies, should be bigger, according to new analysis of satellite data by scientists at The University of Alabama in Huntsville.
This new analysis suggests that ther...
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SMASH 1
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Title: SMASH 1: a very faint globular cluster disrupting in the outer reaches of the LMC? Author: Nicolas F. Martin, Valentin Jungbluth, David L. Nidever, Eric F. Bell, Gurtina Besla, Robert D. Blum, Maria-Rosa L. Cioni, Blair C. Conn, Catherine C. Kaleida, Carme Gallart, Shoko Jin, Steven R. Maje...
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LAB-1
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VLT finds primordial cloud of hydrogen to be centrally powered Observations from ESO's Very Large Telescope have shed light on the power source of a rare vast cloud of glowing gas in the early Universe. The observations show for the first time that this giant "Lyman-alpha blob" - one of th...
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NGC2403
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The clearest most complete image to date of the spiral galaxy NGC 2403 was taken by the Subaru Telescope, using its Suprime-Cam.
NGC 2403, at a distance of 10 million light years in the constellation Camelopardalis, is a Sc type galaxy, which has open spiral arms and a small nucleus...
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Quasar OJ287
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The most massive black hole in the universe has been measured at being 18 billion solar masses. The binary black hole at the centre of quasar OJ287, which is located 3.5 billion light-years away in the constellation Cancer, has a regular pulsing light signal with two major pulses every 12 years. The l...
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9
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Pictor A
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Title: An X-ray view of Pictor A radio lobes: a spatially resolved study Authors: G. Migliori, P. Grandi, G.C.G. Palumbo, G. Brunetti, C. Stanghellini A spatially resolved analysis of the lobes of the radio galaxy Pictor A has been performed for the first time starting from a 50 ksec XMM-Newton obse...
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Cyclic Universe
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1 2 3 4 5 … 8
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A cyclic universe, which bounces through a series of big bangs and "big crunches", could solve the puzzle of our cosmological con...
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PKS 1939-315
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Gemini Helps Confirm Dark "Noodles" in Milky Way Today, in the journal Science, Australian scientist Keith Bannister announced findings that might help solve a 30-year old mystery. Bannister and his team used Gemini to provide baseline optical observations of a quasar (PKS 1939-315...
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NGC6240
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Title: Detection of the Buried AGN in NGC 6240 with the Infrared Spectrograph on the Spitzer Space Telescope
Authors: L. Armus, J. Bernard-Salas, H.W.W. Spoon, J.A. Marshall, V. Charmandaris, S.J.U. Higdon, V. Desai, L. Hao, H.I. Teplitz, D. Devost, B.R. Brandl, B.T. Soifer, J.R. Ho...
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14
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IDCS J1426.5+3508
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NASA's Hubble Spots Rare Gravitational Arc from Distant, Hefty Galaxy Cluster Astronomers using NASA's Hubble Space Telescope have found a puzzling arc of light behind an extremely massive cluster of galaxies residing 10 billion light-years away. The galactic grouping, discovered by NASA's...
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NGC 5194
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Title: Star Formation in NGC 5194 (M51a). II. The Spatially-Resolved Star Formation Law Authors: Robert C. Kennicutt Jr., Daniela Calzetti, Fabian Walter, George Helou, David J. Hollenbach, Lee Armus, George Bendo, Daniel A. Dale, Bruce T. Draine, Charles W. Engelbracht, Karl D. Gordon, Moire...
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M31 ULX-7
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Title: A variable ULX and possible IMBH candidate in M51a Author: Hannah M. Earnshaw, Timothy P. Roberts, Lucy M. Heil, Mar Mezcua, Dominic J. Walton, Chris Done, Fiona A. Harrison, George B. Lansbury, Matthew J. Middleton, Andrew D. Sutton ULX-7, in the northern spiral arm of M51, demonstrates un...
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Star-forming galaxies
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Title: Dust reddening in star-forming galaxies Authors: Ting Xiao, Tinggui Wang, Huiyuan Wang, Hongyan Zhou, HongLin Lu, Xiaobo Dong (USTC) We present empirical relations between the global dust reddening and other physical galaxy properties including the Halpha luminosity, Halpha surface...
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Lockman Hole
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Title: A Deep 1.2 mm Map of the Lockman Hole North Field Authors: Robert R. Lindner, Andrew J. Baker, Alain Omont, Alexandre Beelen, Frazer N. Owen, Frank Bertoldi, Herve Dole, Nicolas Fiolet, Andrew I. Harris, Rob J. Ivison, Carol J. Lonsdale, Dieter Lutz, Mari Polletta We present deep 1.2 mm conti...
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