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2001MNRAS.328..944B - Mon. Not. R. Astron. Soc., 328, 944-950 (2001/December-2)
UBV stellar photometry of bright stars in GC M5 - II. Physical parameters of horizontal branch stars.
BAEV P.V., MARKOV H. and SPASSOVA N.
Abstract (from CDS):
The physical parameters of the stars in the central region of the globular cluster M5 (NGC 5904) were determined from UBV photometry using Kurucz's synthetic flux distributions and some empirical relations. It is found that the bluest horizontal branch (HB) stars have higher luminosities than predicted by canonical zero-age horizontal branch models. Parameters of the mass distribution on the HB stars are determined. It is shown that the gap in the blue HB previously reported by Markov et al. in Paper I is probably a statistical fluctuation.
Abstract Copyright: The Royal Astronomical Society
Journal keyword(s): stars: evolution - stars: horizontal branch - stars: Population II - globular clusters: general - globular clusters: individual: M5 (NGC 5904)
Simbad objects: 2
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