The Daily Brew
Selected astro-ph abstracts for Tuesday September 18
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LBT Discovery of a Yellow Supergiant Eclipsing Binary in the Dwarf
Galaxy Holmberg IX
J. L. Prieto, K. Z. Stanek, C. S. Kochanek, D. R. Weisz, A. Baruffolo,
J. Bechtold, V. Burwitz, C. DeSantis, S. Gallozzi, P. M. Garnavich, E.
Giallongo, J. M. Hill, R. W. Pogge, R. Ragazzoni, R. Speziali, D. J.
Thompson, R. M. Wagner
arXiv:0709.2376
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A Direct Precision Measurement of the Intergalactic Lyman-alpha Opacity
at 2<z<4.2
C.-A. Faucher-Giguere (1), J. X. Prochaska (2), A. Lidz (1), L.
Hernquist (1), M. Zaldarriaga (1) ((1) Harvard University, (2) UCO/Lick
Observatory)
arXiv:0709.2382
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The Rise and Fall of Debris Disks: MIPS Observations of h and chi Persei
and the Evolution of Mid-IR Emission from Planet Formation
Thayne Currie (1,5), Scott Kenyon (1), Zoltan Balog (2), George Rieke
(2), Ann Bragg (3), and Ben Bromley (4) ((1) Harvard-Smithsonian Center for
Astrophysics, (2) Steward Observatory/University of Arizona, (3) Dept. of
Physics, Bowling Green State University, (4) Dept. of Physics, University of
Utah, (5) Dept. of Physics and Astronomy, University of California, Los
Angeles)
arXiv:0709.2510
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Compact Stellar Systems around NGC 1399
P. Firth, M.J. Drinkwater, E.A. Evstigneeva, M.D. Gregg, A. Karick,
J.B. Jones and S. Phillipps
arXiv:0709.2517
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A photometric search for transients in galaxy clusters
D.J. Sand, D. Zaritsky, S. Herbert-Fort, S. Sivanandam, D. Clowe
arXiv:0709.2519
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Rings and shells of "dark matter" as MOND artifacts
Mordehai Milgrom and Robert H. Sanders
arXiv:0709.2561
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Near-infrared spectroscopy of the very low mass companion to the hot DA
white dwarf PG1234+482
P.R. Steele, M.R. Burleigh, P.D. Dobbie and M.A. Barstow
arXiv:0709.2604
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