The Daily Brew
Selected astro-ph abstracts for Thursday January 31
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A Limit on the Number Density of Bright z~7 Galaxies
Elizabeth R. Stanway (Bristol), Malcolm N. Bremer (Bristol), Valentina
Squitieri (Bristol), Laura S. Douglas (Bristol, Paris), Matthew D. Lehnert
(Paris)
arXiv:0801.4559
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Are the black hole masses in Narrow Line Seyfert 1 galaxies actually
small?
R. Decarli, M. Dotti, M. Fontana, F. Haardt
arXiv:0801.4560
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Extended silicate dust emission in PG QSOs
M. Schweitzer, B. Groves, H. Netzer, D. Lutz, E. Sturm, A. Contursi,
R. Genzel, L.J. Tacconi, S. Veilleux, D.-C. Kim, D. Rupke, A.J. Baker
arXiv:0801.4637
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Discovery of a Giant Stellar Tidal Stream Around the Disk Galaxy NGC
4013
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 Astronomie D, (3)
Cardiff University UK, (4) BlackBird Observatory USA, (5) University of
Virginia USA, (6) University of Victoria CDN, (7) Penn State University USA)
arXiv:0801.4657
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