Next Section: Introduction

Contents Page: Volume 14, Number 1

The Dark Blue Compact Dwarf Galaxy NGC 2915

Gerhardt R. Meurer
The Johns Hopkins University
Department of Physics and Astronomy
Baltimore, MD 21218 U.S.A.
meurer@pha.jhu.edu

Abstract:

Recent results on NGC 2915, the first blue compact dwarf galaxy to have its mass distribution modeled, are summarized. NGC 2915 is shown to have HI well beyond its detected optical extent. Its rotation curve is well determined and fit with maximum disk mass models. The dark matter halo dominates the mass distribution at nearly all radii, and has a very dense core compared to normal galaxies. High mass star formation energizes the HI in the center of the galaxy, but appears to be maintained in virial equilibrium with the dark matter halo. The implications of these results are briefly discussed.

Keywords: galaxies: individual: NGC 2915 - galaxies: kinematics and dynamics - dark matter



HTML SectionDownload Full Paper


Welcome... About Electronic PASA... Instructions to Authors
ASA Home Page... CSIRO Publishing PASA
Browse Articles HOME Search Articles
© Copyright Astronomical Society of Australia 1997
ASKAP
Public