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Integral field observations of distant cluster galaxies

Published online by Cambridge University Press:  01 August 2006

D. Vergani ,
C. Balkowski ,
H. Flores ,
V. Cayatte ,
F. Hammer ,
S. Mei  and
J.P. Blakeslee
D. Vergani
Affiliation:
INAF – IASF Milano, via Bassini 15, 20133 Milano, Italy email: daniela@lambrate.inaf.it Obs. de Paris, Sec. de Meudon, GEPI, 5 place Jules Janssen, F-92195 Meudon Cedex, France
C. Balkowski
Affiliation:
Obs. de Paris, Sec. de Meudon, GEPI, 5 place Jules Janssen, F-92195 Meudon Cedex, France
H. Flores
Affiliation:
Obs. de Paris, Sec. de Meudon, GEPI, 5 place Jules Janssen, F-92195 Meudon Cedex, France
V. Cayatte
Affiliation:
Obs. de Paris, Sec. de Meudon, LUTH, 5 place Jules Janssen, F-92195 Meudon Cedex, France
F. Hammer
Affiliation:
Obs. de Paris, Sec. de Meudon, GEPI, 5 place Jules Janssen, F-92195 Meudon Cedex, France
S. Mei
Affiliation:
Dep. of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218
J.P. Blakeslee
Affiliation:
Dep. of Physics and Astronomy, Washington State University, Pullman, WA 99164-2814
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Abstract

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We have used the FLAMES multi-integral field unit system of the European Southern Observatory (VLT) centered on the cluster MS0451.6-0305 at z = 0.5386 to obtain the spatially resolved kinematics of the cluster members. The spectral data are supported by HST/ACS images that provide immediate morphological information of the cluster galaxies. The relevant structural parameters such as inclination, size, and orientation derived from optical high angular resolution images are compared with those derived from the kinematics. Our final goals are: 1. to derive the Tully-Fisher relation for cluster galaxies with regular kinematics. 2. to obtain the dynamical masses from resolved kinematics and stellar masses from optical images to be compared with local measurements.

Keywords

instrumentation: spectrographsgalaxies: clusters: individual (MS0451.6-0305)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S237: Triggered Star Formation in a Turbulent ISM , August 2006 , pp. 489
Copyright
Copyright © International Astronomical Union 2007