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Chemical evolution of DLA systems

Published online by Cambridge University Press:  23 December 2005

E.R. Kasimova  and
Yu.A. Shchekinov
E.R. Kasimova
Affiliation:
Institute of Physics, Rostov State University, 194 Stachki st., 344090 Russia email: [email protected], [email protected]
Yu.A. Shchekinov
Affiliation:
Institute of Physics, Rostov State University, 194 Stachki st., 344090 Russia email: [email protected], [email protected]
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Abstract

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We assume that Damped Lyman-α absorbers are gas rich galaxies on early stages of their evolution, and check this idea on the basis of a spectrophotometric, chemical and dust evolution model. Influence of the dust on the chemical pattern of galaxies is calculated self-consistently according Dwek's (1998) model, where up-to-date dust yields from supernovae, intermediate and low mass stars on their AGB phase are taken into account. We conclude that gas rich galaxies are good candidates on the role of DLA systems.

Keywords

Quasars: absorption linesgalaxies: evolutiondust
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 1 , Symposium S228: From Lithium to Uranium: Elemental Tracers of Early Cosmic Evolution , May 2005 , pp. 593 - 594
Copyright
© 2005 International Astronomical Union