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Please use this identifier to cite or link to this item: http://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/14215
Title: Disintegration of the Aged Open Cluster Berkeley 17
Authors: Vaidya, Kaushar
Keywords: Physics
Cluster Berkeley
Pan-STARRS
Berkeley 17 / methods
Issue Date: 2017
Publisher: IOP
Abstract: We present the analysis of the morphological shape of Berkeley 17, the oldest known open cluster (∼10 Gyr), using the probabilistic star counting of Pan-STARRS point sources, and confirm its core-tail shape, plus an antitail, previously detected with the 2MASS data. The stellar population, as diagnosed by the color–magnitude diagram and theoretical isochrones, shows many massive members in the clusters core, whereas there is a paucity of such members in both of the tails. This manifests mass segregation in this aged star cluster with the low-mass members being stripped away from the system. It has been claimed that Berkeley 17 is associated with an excessive number of blue straggler candidates. A comparison of nearby reference fields indicates that about half of these may be field contamination.
URI: https://iopscience.iop.org/article/10.3847/1538-4357/aa89e2/meta
http://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/14215
Appears in Collections:Department of Physics

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