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Distant Galaxy Transformation Probed by VLT and HST

Published online by Cambridge University Press:  01 August 2006

B. L. Ziegler ,
E. Kutdemir ,
A. Böhm ,
K. Jäger ,
M. Verdugo ,
R. Peletier ,
T. Kronberger ,
W. Kapferer  and
S. Schindler
B. L. Ziegler
Affiliation:
Göttingen, Germany,
E. Kutdemir
Affiliation:
Göttingen, Germany,
A. Böhm
Affiliation:
Göttingen, Germany,
K. Jäger
Affiliation:
Göttingen, Germany,
M. Verdugo
Affiliation:
Göttingen, Germany,
R. Peletier
Affiliation:
Groningen, The Netherlands,
T. Kronberger
Affiliation:
Innsbruck, Austria
W. Kapferer
Affiliation:
Innsbruck, Austria
S. Schindler
Affiliation:
Innsbruck, Austria
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Abstract

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We investigate the morphologies and velocity fields of spiral galaxies in distant clusters (z ~ 0.5) focussing on signatures from interactions. Structural parameters and peculiarities are determined with HST/ACS images. To derive the internal kinematics and rotation curves we have performed 3D–spectroscopy allowing the construction of the full velocity field for each galaxy. Combining both approaches, transformation mechanisms are revealed that affect not only the stellar populations but also the mass distribution. The observations are supported by N-body/SPH simulations of different interaction processes.

Keywords

galaxies: evolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S235: Galaxy Evolution Across the Hubble Time , August 2006 , pp. 258
Copyright
Copyright © International Astronomical Union 2007