On the Density and Surface Brightness Profiles in Globular Star Clusters

Details On the Density and Surface Brightness Profiles in Globular Star Clusters On the Density and Surface Brightness Profiles in Globular Star Clusters

Jun 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007seraj.174...43n&link_type=abstract

Serbian Astronomical Journal, vol. 174, p. 43-46

Astronomy and Astrophysics

Astronomy

Globular Clusters: General

Scientific paper

A model of mass distribution, applicable to globular star clusters and proposed earlier, is reconsidered. It is shown that it can be related to the well-known Plummer-Schuster formula, and the equations yielding its dimensionless parameters are given. The corresponding surface density is calculated numerically. It is indicated that in a general case the surface density should not be proportional to the surface brightness and a more adequate formula relating these two quantities is proposed.

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