The Daily Brew
Selected astro-ph abstracts for Wednesday September 19
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Clustering properties of ultrahigh energy cosmic rays and the search for
their astrophysical sources
Alessandro Cuoco, Steen Hannestad, Troels Haugboelle, Michael
Kachelriess, Pasquale D. Serpico
arXiv:0709.2712
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A Photometric Survey for Variables and Transits in the Field of Praesepe
with KELT
Joshua Pepper, K. Z. Stanek, Richard W. Pogge, David W. Latham, D. L.
DePoy, Robert Siverd, Shawn Poindexter, Gregory R. Sivakoff
arXiv:0709.2728
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Evidence for Quasar Activity Triggered by Galaxy Mergers in HST
Observations of Dust-reddened Quasars
Tanya Urrutia, Mark Lacy, Robert H. Becker
arXiv:0709.2805
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Microlensing variability in the Einstein Cross, Q2237+0305: a
spectrophotometric monitoring with the VLT
A. Eigenbrod (1), F. Courbin (1), D. Sluse (1), G. Meylan (1), E. Agol
(2) ((1) EPFL Switzerland, (2) University of Washington)
arXiv:0709.2828
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The Hottest Horizontal-Branch Stars in omega Centauri - Late Hot Flasher
vs. Helium Enrichment
S. Moehler (ESO), S. Dreizler (U Goettingen), T. Lanz (U Maryland), G.
Bono (INAF-Rome), A.V. Sweigart (NASA-GSFC), A. Calamida (INAF-Rome),
M.Monelli (IAC Tenerife), M. Nonino (INAF-Trieste)
arXiv:0709.2839
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On the nature of the z=0 X-ray absorbers: I. Clues from an external
group
Smita Mathur, Gregory R. Sivakoff, Rik J. Williams, Fabrizio Nicastro
arXiv:0709.2870
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Photometric Redshift Requirements for Self-Calibration of Cluster Dark
Energy Studies
Marcos Lima, Wayne Hu (KICP, U. Chicago)
arXiv:0709.2871
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Design Considerations for a Ground-based Transit Search for Habitable
Planets Orbiting M dwarfs
Philip Nutzman and David Charbonneau
arXiv:0709.2879
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