Membership of Globular Cluster NGC 6121

Details Membership of Globular Cluster NGC 6121 Membership of Globular Cluster NGC 6121

Feb 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011eas....45..385c&link_type=abstract

EAS Publications Series, Volume 45, 2011, pp.385-388

Computer Science

Scientific paper

We have developed a method for obtaining membership of globular cluster NGC 6121 by radius-velocity profiles of a self- gravitating system. Previous works usually identified the membership of clusters by spatial distribution (radius), velocity distribution (proper motion), and photometry (isochrone in colour-magnitude diagram). However, field star contamination might be severe by method of spatial distribution and photometric method, and many high speed stars near the central region might be missed by velocity distribution method. More complete members could be identified by this method.

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