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Dynamics of Globular Cluster Systems in Elliptical Galaxies

Published online by Cambridge University Press:  03 August 2017

Aaron J. Romanowsky
Aaron J. Romanowsky*
Affiliation:
Kaptyen Astronomical Institute, Postbus 800, 9700 AV Groningen, The Netherlands

Abstract

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One of the most promising avenues for exploring the dynamics of the outer parts of elliptical galaxies involves using bright discrete objects as kinematical tracers: globular clusters and planetary nebulae. As large data sets are becoming available, rigorous dynamical analyses are needed to interpret them. To this end, we have developed an extension of orbit modeling methods, which we apply to the dynamics of the giant ellipticals M87 and M49. We find that a sample of ∼ 200 globular clusters velocities is effective at demonstrating the presence of a dark halo and providing hints about the detailed distribution of the dark matter.

Type
Part 2. Globular Cluster Systems of Distant Galaxies
Information
Symposium - International Astronomical Union , Volume 207: Extragalactic Star Clusters , 2002 , pp. 336 - 338
Copyright
Copyright © Astronomical Society of the Pacific 2002 

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