The Daily Brew
Selected astro-ph abstracts for Friday December 14
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Do broad absorption line quasars live in different environments from
ordinary quasars?
Yue Shen (1), Michael A. Strauss (1), Patrick B. Hall (2), Donald P.
Schneider (3), Donald G. York (4), Neta A. Bahcall (1)((1)Princeton; (2)York
Univ.; (3)PSU; (4)UChicago)
arXiv:0712.2042
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Bias Properties of Extragalactic Distance Indicators XII: Bias Effects
of Slope Differences and Intrinsic Dispersion on Tully-Fisher Distances to
Galaxy Clusters with Application to the Virgo Cluster
Allan Sandage (The Observatories of the Carnegie Institution of
Washington, Pasadena, CA, USA)
arXiv:0712.2066
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Improved parameters for the transiting planet HD 17156b: a high-density
giant planet with a very eccentric orbit
M. Gillon (1, 2), A. H. M. J. Triaud (1), M. Mayor (1), D. Queloz (1),
S. Udry (1), P. North (3) ((1) Observatoire de Geneve, Sauverny, Switzerland;
(2) Institut d'Astrophysique et de Geophysique, Universite de Liege, Liege,
Belgium; (3) Laboratoire d'Astrophysique, Ecole Polytechnique Federale de
Lausanne (EPFL), Observatoire de Sauverny, Versoix, Switzerland)
arXiv:0712.2073
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The Afterglows of Swift-era Gamma-Ray Bursts. I. Comparing pre-Swift and
Swift era Long/Soft (Type II) GRB Optical Afterglows
D. A. Kann, S. Klose, B. Zhang, D. Malesani, E. Nakar, A. C. Wilson,
N. R. Butler, L. A. Antonelli, G. Chincarini, B. E. Cobb, S. Covino, P.
D'Avanzo, V. D'Elia, M. Della Valle, P. Ferrero, D. Fugazza, J. Gorosabel, G.
L. Israel, F. Mannucci, S. Piranomonte, S. Schulze, L. Stella, G.
Tagliaferri, K. Wiersema
arXiv:0712.2186
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An Outer Planet Beyond Pluto and Origin of the Trans-Neptunian Belt
Architecture
Patryk Sofia Lykawka and Tadashi Mukai
arXiv:0712.2198
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Extended-Source Effect and Chromaticity in Two-Point-Mass Microlensing
Ondrej Pejcha, David Heyrovsky
arXiv:0712.2217
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