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Globular Clusters in Dwarf Elliptical Galaxies

Published online by Cambridge University Press:  03 August 2017

Bryan W. Miller ,
Jennifer M. Lotz ,
Henry C. Ferguson ,
Massimo Stiavelli  and
Bradley C. Whitmore
Bryan W. Miller
Affiliation:
Gemini Observatory, Casilla 603, La Serena, Chile
Jennifer M. Lotz
Affiliation:
Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
Henry C. Ferguson
Affiliation:
Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD, 21218, USA
Massimo Stiavelli
Affiliation:
Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD, 21218, USA
Bradley C. Whitmore
Affiliation:
Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD, 21218, USA

Abstract

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We present preliminary results on the shape of the globular cluster luminosity function and the colors and inferred metallicities of the clusters in dwarf elliptical galaxies imaged with HST. The luminosity function (LF) of the GC candidates is consistent with a Gaussian-shaped LF similar to that in giant ellipticals. Also, with a mean color of (V - I) = 0.94, most of the GCs appear to be old and metal-poor ([Fe/H] = −1.4) like GCs in the Galaxy and in nearby giant ellipticals. This suggests that the bulk of the clusters were formed more than 10 Gyr ago.

Type
Part 2. Globular Cluster Systems of Distant Galaxies
Information
Symposium - International Astronomical Union , Volume 207: Extragalactic Star Clusters , 2002 , pp. 303 - 305
Copyright
Copyright © Astronomical Society of the Pacific 2002 

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