Chemical Evolution from Zero to High Redshift: Proceedings - download pdf or read online

By Bengt Gustafsson (auth.), Jeremy R. Walsh, Michael R. Rosa (eds.)

ISBN-10: 3540483608

ISBN-13: 9783540483601

ISBN-10: 3662216973

ISBN-13: 9783662216972

The observational and interpretive instruments for the examine of chemical evolution are growing mature adequate that they are often utilized with a few self belief to extra-galactic platforms and built-in populations at more and more excessive redshift. This publication is dedicated to the learn of the interaction among assorted tools of measuring chemical abundances with astrophysical versions. stories of chemical abundances and evolution from stars, inter-stellar medium and native crew galaxies at 0 redshift to far-off galaxies, clusters of galaxies and inter-galactic medium at excessive redshift are awarded. There also are synopses on growth in instrumentation for abundance determination.

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Extra resources for Chemical Evolution from Zero to High Redshift: Proceedings of the ESO Workshop Held at Garching, Germany, 14–16 October 1998

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1996) , Nomoto et al. (1997a) and Woosley & Weaver (1995) are due to a different treatment of eonvection in stellar modeling (Sehwarzsehild vs. Ledoux with semieonveetion). The Sehwarzsehild eriterion eauses larger eonveetive eores whieh - in eombination with the larger 12C(a'/) rate [Langer & Henkel (1995)] - leads to larger 16 0 , 20Ne, and 24Mg yiclds whieh are apparently preferred in ehemieal evolution ealculations [Thomas et al. (1998), Matteueei (1999)]. The argument that the Ledoux eriterion might be morejustified on theoretieal grounds, seems to be eounteraeted when also treating rotation eorreetly [Langer et al.

Mex. Astren . T. 1992, Rev. Mex. Astren. '1'. 1991, PASP, 103,865 Perez, E. K. , Baldwin , J. K . 1998, ApJ, 495, 891 Rubin, RH. F. L. , & Fich , M. R 1983, MNRAS, 204, 53 Simpson, J. P. J. R . C. , & Cohen, M. 1998, ApJ , 508, 268 St asinska , G. , Peimbert , M. & Pena, M. l , submitted Tosi, M. S . , & Esteban, C. , & Rosa , M. A. -W. J . J. J . Storey! B . Ti epolo 11, 1-34131 Trieste, It aly Abstract.

The methods are similar to those deseribed in Smartt et al. (1996), and are from LTE line-formation calculations. The non-LTE results will soon be presented in Rolleston et al. (1999) . 02 dex kpc " ! for both elements), whieh is (within the errors) the same as that derived for oxygen. e. through o-processing in massive stars, and returned to the ISM through SN Type 11 explosions. Henee it is encouraging to eonfirm that their variations through the Galactic disk are weil eorrelated . 3 Probing the Inner Regions of the Galaetic Disk Metallieity variations in the inner regions of the Galactie disk have until reeently been mainly ignored due to the difficulty in optieally probing these high extinction regions.

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Chemical Evolution from Zero to High Redshift: Proceedings of the ESO Workshop Held at Garching, Germany, 14–16 October 1998 by Bengt Gustafsson (auth.), Jeremy R. Walsh, Michael R. Rosa (eds.)

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