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Issue Astron. Astrophys. Suppl. Ser.
Volume 119, Number 2, October_II 1996
Page(s) 191 - 197
DOI http://dx.doi.org/10.1051/aas:1996236

A CCD BVI color-magnitude study of the metal-rich globular cluster NGC 5927 DOI: 10.1051/aas:1996236

Astronomy and Astrophysics Supplement Series, Vol. 119, October II 1996, 191-197

A CCD BVI color-magnitude study of the metal-rich globular cluster NGC 5927 gif

N. Samus , V. Kravtsov , A. Ipatov , O. Smirnov , G. Alcaíno , W. Liller and F. Alvarado

Send offprint requests to: G. Alcaíno

Institute of Astronomy of Russian Academy of Science, Moscow, Russia, and Isaac Newton Institute Moscow Branch,
48, Pyatnitskaya Str., Moscow 109017, Russia
Sternberg Astronomical Institute, Moscow, Russia, and Isaac Newton Institute Moscow Branch, 13, University Ave., Moscow 119899, Russia
Instituto Isaac Newton, Ministerio de Educacion de Chile, Casilla 8-9, Correo 9, Santiago, Chile

Received September 15, 1995; accepted February 14, 1996

Abstract:

We present for the globular cluster NGC 5927 the first multicolor CCD photometry that reaches below the cluster's main sequence turnoff. The turnoff is located approximately at , , . There is a hint of horizontal branch morphology variations with distance from the cluster center. Using the isochrones of VandenBerg & Bell (1985), we derive the cluster age to be about 15 Gyr.

Key words: globular clusters: individual: NGC 5927 --- HR diagram


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