Membership of globular cluster NGC 6121

H. Chen, C. H. Peng, C. M. Ko

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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.

Original languageEnglish
Title of host publicationGAIA
Subtitle of host publicationAt the Frontiers of Astrometry
Pages385-388
Number of pages4
DOIs
StatePublished - 2011
EventSymposium - GAIA: At the Frontiers of Astrometry - Sevres, France
Duration: 7 Jun 201011 Jun 2010

Publication series

NameEAS Publications Series
Volume45
ISSN (Print)1633-4760
ISSN (Electronic)1638-1963

Conference

ConferenceSymposium - GAIA: At the Frontiers of Astrometry
Country/TerritoryFrance
CitySevres
Period7/06/1011/06/10

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