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Abell 1770
(Preview)
Astronomers have caught sight of an unusual galaxy that has illuminated new details about a celestial "sandbar" connecting two massive islands of galaxies. The research was conducted in part with NASA's Spitzer Space Telescope. These "sandbars," or filaments, are known...
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II Zw 96
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Spitzer Reveals a Buried Explosion Sparked by a Galactic Train Wreck Astronomers using NASA's Spitzer Space Telescope have found a stunning burst of star formation that beams out as much infrared light as an entire galaxy. The collision of two spiral galaxies has triggered this explosion, which i...
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NGC 4452
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[url=http://www.news.com.au/technology/sci-tech/hubble-snaps-mailbo...
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Super-star clusters
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Title: Super-star clusters versus OB associations Authors: Carsten Weidner, Ian A. Bonnell, Hans Zinnecker Super Star Clusters (Mecl > 10^5 Msol) are the largest stellar nurseries in our local Universe, containing hundreds of thousands to millions of young stars within a few light years. Ma...
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UDFy-38135539
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A European team of astronomers using ESO's Very Large Telescope (VLT) has measured the distance to the most remote galaxy so far. By carefully analysing the very faint glow of the galaxy they have found that they are seeing it when the Universe was only about 600 million years old (a redshift of 8.6). T...
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GLIMPSE-CO1
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Title: GLIMPSE-CO1: the most massive intermediate-age stellar cluster in the Galaxy Authors: Ben Davies (RIT/Leeds), Nate Bastian (Exeter/Cambridge), Mark Gieles (Cambridge), Anil C. Seth (CfA Harvard), Sabine Mengel (ESO), Iraklis S. Konstantopoulos (Penn State) The stellar cluster GLI...
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Powerful Radio Galaxies
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Title: The optical morphologies of the 2Jy sample of radio galaxies: evidence for galaxy interactions Authors: Cristina Ramos Almeida, Clive N. Tadhunter, K. J. Inskip, R. Morganti, J. Holt, D. Dicken We present deep GMOS-S/Gemini optical broad-band images for a complete sample of 46 southern 2...
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Resurrected Galaxies
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Giant Ultraviolet Rings Found in Resurrected Galaxies Astronomers have found mysterious, giant loops of ultraviolet light in aged, massive galaxies, which seem to have a second lease on life. Somehow these "over-the-hill galaxies" have been infused with fresh gas to form new stars t...
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NGC 7590
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Title: XMM Observations of Seyfert 2 Galaxies NGC 7590: the Nature of X-ray Absorption Authors: X. W. Shu (USTC), T. Liu (USTC), J. X. Wang (USTC) We present the analysis of three XMM observations of the Seyfert 2 galaxy NGC 7590. The source was found to have no X-ray absorption in the low spatial resol...
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SDSS J0013+1523
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Astronomers at the California Institute of Technology (Caltech) and Ecole Polytechnique Fédérale de Lausanne (EPFL) in Switzerland have discovered the first known case of a distant galaxy being magnified by a quasar acting as a gravitational lens. The discovery, based in part on observations d...
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Arp 65 & 107
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Using the Spitzer Space Telescope in December 2004, the astronomers Beverly Smith and Mark Giroux of East Tennessee State University imaged interacting galaxies Arp 65 in Andromeda and Arp 107 in Leo Minor at two different wavelengths: 3.6 (blue) and 8 (red) microns.
At 3.6 mi...
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