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The Evolution of Disk Galaxy Scaling Relations Since Redshift z = 1

Published online by Cambridge University Press:  01 August 2006

Asmus Böhm  and
Bodo L. Ziegler
Asmus Böhm
Affiliation:
Astrophysikalisches Institut Potsdam, An der Sternwarte 16, 14482 Potsdam, Germany email: aboehm@aip.de Institut für Astrophysik, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
Bodo L. Ziegler
Affiliation:
Institut für Astrophysik, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
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Abstract

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Based on VLT/FORS spectroscopy and HST/ACS imaging, we have constructed a sample of 125 field spiral galaxies that cover redshifts up to z = 1. By deriving the galaxies' luminosities, disk sizes, maximum rotation velocities, stellar masses, total masses, gas-phase metallicities etc., we are able to study the evolution of fundamental scaling relations like the Tully–Fisher relation as a function of cosmic time. While the evolution of most of the galaxies' fundamental parameters is in compliance with a hierarchical structure growth, the results from stellar population modelling favour a down-sizing scenario in the sense that the average stellar ages in high-mass spirals are older than in low-mass spirals.

Keywords

galaxies: evolutiongalaxies: spiralgalaxies: stellar content
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S235: Galaxy Evolution Across the Hubble Time , August 2006 , pp. 391
Copyright
Copyright © International Astronomical Union 2007

References

Bell, E. F., & de Jong, R. S. 2001, ApJ 550, 212CrossRefGoogle Scholar
Böhm, A., & Ziegler, B. L. 2006, ApJ, submitted, astro-ph/0601505Google Scholar
Ferreras, I., Silk, J., Böhm, A., & Ziegler, B. L. 2004, MNRAS 355, 64CrossRefGoogle Scholar