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The Supernebula and Protoglobular Cluster in NGC 5253

Published online by Cambridge University Press:  30 March 2016

Jean L. Turner
Jean L. Turner*
Affiliation:
UCLA, Division of Astronomy & Astrophysics, Los Angeles CA 90095

Abstract

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A compact and bright radio and infrared source within the starburst center of the dwarf galaxy NGC 5253 appears to be an extremely large compact HII region. The high density (ne ~ few xlO4 cm-3) and size (∼1-2 pc) of the nebula require the ionization equivalent of at least 4000 O7 stars. We suggest that this optically obscured nebula is a forming super star cluster, or protoglobular cluster, with an age of a few hundred thousand years.

Type
II. Joint Discussions
Information
Highlights of Astronomy , Volume 12: Highlights of Astronomy. As presented at the XXIVth General Assembly of the IAU, 2000 , 2002 , pp. 177 - 178
Copyright
Copyright © Astronomical Society of Pacific 2002

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