Multi-color photometry of M 75…

NGC 6864 (M 75) :: new paper

Kravtsov, V.; Alcaíno, G.; Marconi, G.; Alvarado, F.

“Multi-color photometry of the Galactic globular cluster M 75 = NGC 6864. A new sensitive metallicity indicator and the position of the horizontal branch in UV””

We carry out and analyze new multi-color photometry of the Galactic globular cluster (GC) M 75 in $\it UBVI$ and focus on the brighter sequences of the color-magnitude diagram (CMD), with particular emphasis on their location in U-based CMD. Specifically, we study the level both of the horizontal (HB) and red giant branches (RGB) relative to the main-sequence turnoff (TO) in the U magnitude...

Published on: Astronomy and Astrophysics Vol. 469 No. 2 (July II 2007)

ADS link: http://cdsads.u-strasbg.fr/abs/2007A%26A…469..529K
GGCs-DB: http://www.mporzio.astro.it/~marco/gc/cluster_4.php?ggc=6864

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