Luminosity Profiles of Extremely Massive Clusters in NGC 7252

Details Luminosity Profiles of Extremely Massive Clusters in NGC 7252 Luminosity Profiles of Extremely Massive Clusters in NGC 7252

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008hst..prop11554b&link_type=abstract

HST Proposal ID #11554. Cycle 17

Computer Science

Scientific paper

The galactic merger remnant NGC 7252 represents one of the most extreme post-starburst environments in the local universe. During the disk-disk merger { 400 Myr ago} this galaxy produced the largest young massive star cluster population known, including two clusters above 10^7 Msun, a factor of 100 more massive than typical globular clusters in the Milky Way. We propose ACS-HRC observations of 3 fields in NGC 7252 in order to explore the detailed properties, i.e. luminosity profiles, of these massive star clusters. These observations will be able to test massive cluster formation mechanisms {e.g. the cluster merger scenario} as well as the possible tidal erosion and truncation of the outer regions of the clusters by the galactic tidal field. These observations will compliment our large on-going study using archival HST data, of star cluster profiles outside the Local Group. The cluster population in NGC 7252 will extend our sample in cluster mass by an order of magnitude.;

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