The Daily Brew
Selected astro-ph abstracts for Friday April 29
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Stochastic chemical enrichment in metal-poor systems I. Theory
T. Karlsson
astro-ph/0504615
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Using gravitational-wave standard sirens
Daniel E. Holz (UChicago and LANL), Scott A. Hughes (MIT)
astro-ph/0504616
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Stochastic chemical enrichment in metal-poor systems II. Abundance
ratios and scatter
T. Karlsson and B. Gustafsson
astro-ph/0504617
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The metal enrichment of elliptical galaxies in hierarchical galaxy
formation models
Masahiro Nagashima, Cedric G. Lacey, Takashi Okamoto, Carlton M.
Baugh, Carlos S. Frenk, Shaun Cole
astro-ph/0504618
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Close Binaries as the Progenitors of the Brightest Planetary Nebulae
Robin Ciardullo (1), Steinn Sigurdsson (1), John J. Feldmeier (2) and
George H. Jacoby (3) ((1) Penn State University, (2) NOAO, (3) WIYN)
astro-ph/0504619
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An Analytic Model for the Axis-Ratio Distribution of Dark Matter Halos
from the Primordial Gaussian Density Field
Jounghun Lee (KIAS/SNU), Yipeng Jing (SAO), Yasushi Suto (U.Tokyo)
astro-ph/0504623
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Color Gradients in Early-type Galaxies: Dependence on Environment and
Redshift
F. La Barbera, R.R. de Carvalho, R. Gal, G. Busarello, P. Merluzzi, M.
Capaccioli, S.G. Djorgovski
astro-ph/0504626
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Color--Magnitude Diagrams and Luminosity Functions down to the Hydrogen
Burning Limit. III. A Preliminary HST Study of NGC6791
I. R. King (1), L. R. Bedin (2), G. Piotto (3), S. Cassisi (4), J.
Anderson (5). ((1) Univ.of Washington Seattle, (2) E.S.O.Garching, (3)
Univ.PD, (4) INAF-Obs.Teramo, (5) Rice Univ. Houston.)
astro-ph/0504627
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Gravoturbulent formation of planetesimals
Anders Johansen, Hubert Klahr, Thomas Henning (MPIA, Heidelberg)
astro-ph/0504628
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A model for the population of helium stars in the Galaxy I. Low-mass
stars
L. Yungelson and A. Tutukov
astro-ph/0504632
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GRBs and SGRs by high energy leptons showering in blazing gamma jets:
are SGRs sources of EeV CRs?
D.Fargion, M.Grossi
astro-ph/0504638
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Testing the accuracy of the Hydro-PM approximation in numerical
simulations of the Lyman-alpha forest
Matteo Viel, Martin G. Haehnelt, Volker Springel
astro-ph/0504641
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[O II] Emission in Quasar Host Galaxies: Evidence for a Suppressed Star
Formation Efficiency
Luis C. Ho (Carnegie Observatories)
astro-ph/0504642
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The Vertical Stellar Kinematics in Face-On Barred Galaxies: Estimating
the Ages of Bars
Dimitri A. Gadotti (1,2), Ronaldo E. de Souza (1) ((1) Universidade de
Sao Paulo, (2) Laboratoire d'Astrophysique de Marseille)
astro-ph/0504646
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