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Stellar Population in Extremely Red Galaxies

Hempel, A. ; Schaerer, D. ; Richard, J. ; Egami, E. ; Pelló, R.

In: Proceedings of the International Astronomical Union, 2006, vol. 2, no. S241, p. 565-566

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    Titre
    • Stellar Population in Extremely Red Galaxies
    Auteur
    • Hempel, A.. Geneva Observatory, Ch. des Maillettes 51, CH-1290 Sauverny, Switzerland email: Angela.Hempel@obs.unige.ch
    • Schaerer, D.. Geneva Observatory, Ch. des Maillettes 51, CH-1290 Sauverny, Switzerland email: Angela.Hempel@obs.unige.ch
    • Richard, J.. Caltech Astronomy, MC105-24, Pasadena, CA 91125, USA
    • Egami, E.. Steward Observatory, University Arizona, AZ 85721, USA
    • Pelló, R.. Observatoire Midi-Pyréneés, 14 Avenue E. Belin, F-31400 Toulouse, France
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Proceedings of the International Astronomical Union, 2006, vol. 2, no. S241, p. 565-566. Cambridge University Press
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:289733
    Summary
    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