The Daily Brew
Selected astro-ph abstracts for Thursday April 20
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H-alpha Observations of a Large Sample of Galaxies at z~2: Implications
for Star Formation in High Redshift Galaxies
Dawn K. Erb (CfA), Charles C. Steidel (Caltech), Alice E. Shapley
(Princeton), Max Pettini (IoA), Naveen A. Reddy (Caltech), Kurt L. Adelberger
(McKinsey)
Comments: 14 pages, 7 figures, 1 table. Accepted for publication in ApJ
astro-ph/0604388
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Relativistic ejecta from XRF 060218 and the complete census of cosmic
explosions
A. M. Soderberg, S. R. Kulkarni, E. Nakar, E. Berger, D. B. Fox, D. A.
Frail, A. Gal-Yam, R. Sari, S. B. Cenko, M. Kasliwal, P. B. Cameron, R. A.
Chevalier, T. Piran, P. A. Price, B. P. Schmidt, G. Pooley, D.-S. Moon, B. E.
Penprase, N. Gehrels, J. A. Nousek, D. N. Burrows, S. E. Perrson, P. J.
McCarthy
Comments: Submitted to Nature (13 pages, 3 figures)
astro-ph/0604389
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The Formation Epoch of Early-Type Galaxies in the z~0.9 CL1604
Supercluster
N.L. Homeier (JHU), S. Mei (JHU), J.P. Blakeslee (WSU), M. Postman
(STScI), B. Holden (UCSC), H.C. Ford (JHU), L.D. Bradley (JHU), R. Demarco
(JHU), M. Franx (Leiden), G.D. Illingworth (UCSC), M.J. Jee (JHU), F.
Menanteau (JHU), P. Rosati (ESO-Garching), A. van der Wel (JHU), A. Zirm
(JHU)
Comments: ApJ accepted
astro-ph/0604390
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Comparing Dynamical and Stellar Population Mass-to-Light Ratio Estimates
Roelof S. de Jong (STScI) and Eric Bell (MPIA)
Comments: 9 pages, 3 figures. To appear in the conference proceedings of Island
Universes, Structure and Evolution of Disk Galaxies, ed. R.S. de Jong
(Springer, Dordrecht)
astro-ph/0604391
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Baryon Dynamics, Dark Matter Substructure, and Galaxies
David H. Weinberg, Stephane Colombi, Romeel Dav\'e, Neal Katz
Comments: 32 pages including 16 figs. Submitted to ApJ. PDF file with higher
quality versions of Figs 2 and 3 available at
http://www.astronomy.ohio-state.edu/~dhw/Preprints/subhalo.pdf
astro-ph/0604393
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The Ages of Elliptical Galaxies from Infrared Spectral Energy
Distributions
Joel N. Bregman, Pasquale Temi, and Jesse D. Bregman
Comments: Accepted for publication in ApJ
astro-ph/0604399
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The stellar masses of 25000 galaxies at 0.2<z<1.0 estimated by the
COMBO-17 survey
Andrea Borch, Klaus Meisenheimer, Eric F. Bell, Hans-Walter Rix,
Christian Wolf, Simon Dye, Martina Kleinheinrich, Zoltan Kovacs, and Lutz
Wisotzki
Comments: Astronomy and Astrophysics in press. 15 pages, 12 figures
astro-ph/0604405
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Chandra Observations of Nuclear Outflows in the Elliptical Galaxy
NGC4552 in the Virgo Cluster
M. Machacek, P.E.J. Nulsen, C. Jones, W.R. Forman (CfA)
Comments: second part (sec. 4) of astroph/0508588v1 with expanded intro and
discussion; 16 pages, 8 figs., ApJ, submitted
astro-ph/0604406
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Eight billion years of disk galaxy evolution: no galaxy is an island
Eric F. Bell, Marco Barden, Xianzhong Zheng, Casey Papovich, Emeric Le
Floc'h, George Rieke, Christian Wolf, and the GEMS, MIPS Instrument, and
COMBO-17 teams
Comments: 6 pages, To appear in the proceedings of the "Island Universes:
Structure and Evolution of Disk Galaxies" conference held in Terschelling,
Netherlands, July 2005, ed. R. de Jong (Springer: Dordrecht)
astro-ph/0604407
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The Carbon-Rich Gas in the Beta Pictoris Circumstellar Disk
Aki Roberge, Paul D. Feldman, Alycia J. Weinberger, Magali Deleuil,
Jean-Claude Bouret
Comments: Accepted for publication in Nature. The paper is under press embargo
until publication. PDF document, 12 pages. Supplementary information may be
found at http://www.dtm.ciw.edu/akir/Documents/roberge_supp.pdf
astro-ph/0604412
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The potential for tidally heated icy and temperate moons around
exoplanets
Caleb A. Scharf
Comments: 28 pages, 8 Figures, AASTex, Accepted for publication in the
Astrophysical Journal
astro-ph/0604413
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