Chemical Evolution of (Proto-) Galactic Disks and Metal Abundances of Damped Lyα Absorbers

Fritze - v. Alvensleben, Uta

doi:10.1007/978-3-540-49458-4_14

Uta Fritze - v. Alvensleben³

Part of the book series: ESO Astrophysics Symposia ((ESO))

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Abstract

Detailed chemical and spectrophotometric modeling of nearby galaxies allows to derive star formation (SF) histories of spiral galaxy disks as a function of Hubble type. Transforming galaxy ages to redshifts for any given cosmology (H _o,Ω _o,z _f) yields — among others — redshift evolutions of chemical abundances and element ratios. Our models explicitly account for SNI contributions to ⁵⁶Fe, etc. Comparison with curve of growth determined abundances of metal line systems associated with damped Lyα absorbers shows that

the weak redshift evolution of abundances of damped Lyα systems is consistent with expectations from the slowly varying star formation rates of galactic disks
the abundance scatter of damped Lyα systems at fixed redshift is consistent with the range of star formation histories from Sa through Sd disks.

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Authors and Affiliations

Landessternwarte, Königstuhl, D - 69117, Heidelberg, Germany
Uta Fritze - v. Alvensleben

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Uta Fritze - v. Alvensleben
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European Southern Observatory, Karl-Schwarzschild-Strasse 2, D-85748, Garching, Germany
Georges Meylan

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Fritze - v. Alvensleben, U. (1995). Chemical Evolution of (Proto-) Galactic Disks and Metal Abundances of Damped Lyα Absorbers. In: Meylan, G. (eds) QSO Absorption Lines. ESO Astrophysics Symposia. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-49458-4_14

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DOI: https://doi.org/10.1007/978-3-540-49458-4_14
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-662-22373-4
Online ISBN: 978-3-540-49458-4
eBook Packages: Springer Book Archive

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