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3C 348
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A Multi-Wavelength View of Radio Galaxy Hercules A Spectacular jets powered by the gravitational energy of a supermassive black hole in the core of the elliptical galaxy Hercules A illustrate the combined imaging power of two of astronomy's cutting-edge tools, the Hubble Space Telescope's Wide...
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Loop Quantum Cosmology
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Elements of Loop Quantum Cosmology:
The expansion of our universe, when followed backward in time, implies that it emerged from a phase of huge density, the [url=http://mysite.wanadoo-me...
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3C 380
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Title: VLBI Imagings of Kilo-parsec Knot in 3C 380 Authors: Shoko Koyama, Motoki Kino, Hiroshi Nagai, Kazuhiro Hada, Seiji Kameno, Hideyuki Kobayashi We investigate observational properties of a kilo-parsec scale knot in radio-loud quasar 3C 380 by using two epoch archival data obtained by Ver...
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Large Quasar Group
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Title: A structure in the early universe at z ~ 1.3 that exceeds the homogeneity scale of the R-W concordance cosmology Authors: Roger G. Clowes, Kathryn A. Harris, Srinivasan Raghunathan, Luis E. Campusano, Ilona K. Soechting, Matthew J. Graham A Large Quasar Group (LQG) of particularly large si...
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SDSS J1106+1939
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Biggest Black Hole Blast Discovered Astronomers using ESO's Very Large Telescope (VLT) have discovered a quasar with the most energetic outflow ever seen, at least five times more powerful than any that have been observed to date. Quasars are extremely bright galactic centres powered by superma...
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Ursa Major Supercluster
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Title: Peculiar Motions in the Region of the Ursa Major Supercluster of Galaxies Authors: Flera G. Kopylova, Alexander I. Kopylov (Special Astrophysical Observatory of Russian Academy of Sciences) We have investigated the peculiar motions of clusters of galaxies in the Ursa Major (UMa) superc...
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Binary Black Hole Accretion
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Title: Binary Black Hole Accretion Flows From a Misaligned Circumbinary Disk Authors: Kimitake Hayasaki, Hideki Saito, Shin Mineshige We study the basic properties of accretion flows onto binary supermassive black holes, including the cases in which a circumbinary disk is misaligned with the...
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Solitary galaxies in voids
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Solitary galaxies that live in vast, empty regions of space are forming stars at a surprisingly high rate, reveals the largest survey of galaxies ever made. The lonely galaxies may thrive because few galaxies are close enough to strip them of their star-forming gas.
An overwhelming 95% of gala...
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Abell 401
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Planck spots hot gas bridging galaxy cluster pair ESA's Planck space telescope has made the first conclusive detection of a bridge of hot gas connecting a pair of galaxy clusters across 10 million light-years of intergalactic space. In the early Universe, filaments of gaseous matter pervaded the...
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Hubble's Tuning Fork
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The ATLAS3D Project: Replacing the Handle of Hubble's Tuning Fork Since Edwin Hubble introduced his famous tuning fork diagram more than 70 years ago, spiral galaxies and early-type galaxies have been regarded as being two distinct families. The spirals are characterised by the presence of disk...
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Luminous Infrared Galaxies
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Title: XMM-Newton Observations of Three Interacting Luminous Infrared Galaxies Authors: Dale Mudd, Smita Mathur, Matteo Guainazzi, Enrico Piconcelli, Stefano Bianchi, Stefanie Komossa, Cristian Vignali, Giorgio Lanzuisi, Fabrizio Nicastro, Fabrizio Fiore, Roberto Maiolino We investi...
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Big Bang Neutrinos
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Astrophysicists from the Universities of Oxford and Rome have for the first time found evidence of ripples in the Universe’s primordial sea of neutrinos, confirming the predictions of both Big Bang theory and the Standard Model of particle physics.
Neutrinos are elementary particl...
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Dwarf elliptical galaxies
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Title: Dwarf elliptical galaxies as ancient tidal dwarf galaxies Authors: Jörg Dabringhausen, Pavel Kroupa The formation of tidal dwarf galaxies (TDGs) is triggered by the encounters of already existing galaxies. Their existence is predicted from numerical calculations of encountering gal...
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Galactic winds
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Title: How supernova explosions power galactic winds Authors: Peter Creasey (1,2), Tom Theuns (2,3), Richard G. Bower (2) ((1) Leibniz-Institut für Astrophysik Potsdam, (2) U. of Durham, (3) U. of Antwerp) Feedback from supernovae is an essential aspect of galaxy formation. In order to improve...
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Galaxy Cluster A2556
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Title: Chandra Observation of a Weak Shock in the Galaxy Cluster A2556 Authors: Zhenzhen Qin, Haiguang Xu, Jingying Wang, Yu Wang, Junhua Gu, Xiang-ping Wu Based on a 21.5 ks chandra observation of A2556, we identify an edge on the surface brightness profile (SBP) at about 160 h_{71}^{-1} kpc north...
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