Dynamics of the Intermediate-Age Elliptical LMC Cluster NGC 1978

Philippe Fischer; Douglas L. Welch; Mario Mateo

doi:10.1086/116299

Dynamics of the Intermediate-Age Elliptical LMC Cluster NGC 1978

Astrophysics 2009-10-22 v1

Authors: Philippe Fischer , Douglas L. Welch , Mario Mateo

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Abstract

In this paper we investigate the internal dynamics of the LMC cluster NGC 1978 through the use of Photometric (CCD images) and kinematic (stellar radial velocities) data. We apply a variety of dynamical models to this data, including multi-mass King-Michie models and rotating and non-rotating oblate spheroid models. We discuss the cluster mass-to-light ratio and place constraints on the cluster mass function.

Keywords

stellar dynamics King-Michie models oblate spheroid models mass-to-light ratio mass function

Cite

@article{arxiv.astro-ph/9206004,
  title  = {Dynamics of the Intermediate-Age Elliptical LMC Cluster NGC 1978},
  author = {Philippe Fischer and Douglas L. Welch and Mario Mateo},
  journal= {arXiv preprint arXiv:astro-ph/9206004},
  year   = {2009}
}

Comments

36 pages (plus 8 figures available through anonymous FTP, see below)

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