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Globular Cluster Photometry with the Hubble Space Telescope VII. Color Gradients and Blue Stragglers in the Central Region of M30 (NGC 7099) from WFPC2 Observations | | Puragra Guhathakurta
; Zodiac T. Webster
; Brian Yanny
; Donald P. Schneider
; John N. Bahcall
; | | Date: |
29 May 1998 | | Journal: | Astron.J. 116 (1998) 1757 | | Subject: | astro-ph | | Affiliation: | UCO/Lick,UCSC), Zodiac T. Webster (UCSC), Brian Yanny (FNAL), Donald P. Schneider (Penn State), John N. Bahcall (IAS | | Abstract: | We present F555W (V), F439W (B), and F336W (U) photometry of 9507 stars in the central 2’ of the dense, post core collapse cluster M30 (NGC 7099) derived from HST WFPC2 images. These data are used to study the mix of stellar populations in the central region of the cluster. Forty eight blue straggler stars are identified and are found to be strongly concentrated towards the center. The specific frequency of blue stragglers, F_BSSequiv N(BSS)/N(V | | Source: | arXiv, astro-ph/9805361 | | Services: | Forum | Review | PDF | Favorites | |
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