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Stellar Population in Extremely Red Galaxies

Published online by Cambridge University Press:  01 December 2006

A. Hempel ,
D. Schaerer ,
J. Richard ,
E. Egami  and
R. Pelló
A. Hempel
Affiliation:
Geneva Observatory, Ch. des Maillettes 51, CH-1290 Sauverny, Switzerland email: [email protected]
D. Schaerer
Affiliation:
Geneva Observatory, Ch. des Maillettes 51, CH-1290 Sauverny, Switzerland email: [email protected] Observatoire Midi-Pyréneés, 14 Avenue E. Belin, F-31400Toulouse, France
J. Richard
Affiliation:
Caltech Astronomy, MC105-24, Pasadena, CA 91125, USA
E. Egami
Affiliation:
Steward Observatory, University Arizona, AZ 85721, USA
R. Pelló
Affiliation:
Observatoire Midi-Pyréneés, 14 Avenue E. Belin, F-31400Toulouse, France
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Abstract

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We describe our results on multi-colour observations of extremely red galaxies found in two gravitational lensing clusters (Abell 1835 and AC114). Applying a colour criteria of R-K≥ 5.6 we have selected 12(10) EROs, of which 10(4) have no R-band detection. 5 of these objects have exceptional red colours (R-K>7.5). We compare their colours with other galaxy populations, like distant red galaxies and infrared detected extremely red galaxies, in order to differentiate between them.

Keywords

galaxiesfundamental parameters
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S241: Stellar Populations as Building Blocks of Galaxies , December 2006 , pp. 565 - 566
Copyright
Copyright © International Astronomical Union 2007

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