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26 April 2024

» arxiv » astro-ph/9912176

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The Bulge Globular Cluster NGC 6553: Observations with HST's WFPC2, STIS, and NICMOS
Sylvie F. Beaulieu ; Gerard F. Gilmore ; Rachel A. Johnson ; Stephen J. Smartt ; Nial Tanvir ; Basilio Santiago ;
Date:	8 Dec 1999
Subject:	astro-ph
Affiliation:	Institute of Astronomy, Cambridge, England
Abstract:	As part of a large HST project to study the formation and evolution of rich star clusters in the Large Magellanic Cloud, we present results for the Galactic bulge metal-rich globular cluster NGC6553. HST observations using WFPC2, NICMOS and STIS were obtained for this cluster. The primarily reason for studying NGC6553 is to allow the possibility to transform our NICMOS and STIS magnitudes directly into stellar masses. This is particularly important for determining the low mass end of the IMF. NGC 6553 was chosen because its metallicity, [Fe/H]$=-0.22pm 0.05$, is representative of the metallicities
Source:	arXiv, astro-ph/9912176
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