2003A&A...402..565O


Query : 2003A&A...402..565O

2003A&A...402..565O - Astronomy and Astrophysics, volume 402, 565-569 (2003/5-1)

B, V and I photometry of the intermediate metallicity bulge globular clusters NGC 6325 and NGC 6355.

ORTOLANI S., BICA E. and BARBUY B.

Abstract (from CDS):

Colour-Magnitude Diagrams are presented for the globular clusters NGC 6325 and NGC 6355. These clusters are embedded in crowded bulge fields. Both clusters are concentrated and have blue Horizontal Branches, and NGC 6325 shows a blue tail. We derive a reddening E(B-V)≃0.95 and a distance from the Sun d≃6.9 kpc for NGC 6325, and E(B-V)≃0.78 and d≃8.8kpc for NGC 6355. They are both at ∼1kpc from the Galactic center, above the plane. The metallicity has been estimated based on red giant branch morphology, being consistent with an intermediate metallicity of [Fe/H]≃-1.3 for both clusters, at the lower end of the metallicity distribution of bulge field stars. They add to the list of blue Horizontal Branch clusters with intermediate metallicities within the bulge volume.

Abstract Copyright:

Journal keyword(s): galaxy: clusters: individual: NGC 6325, NGC 6355 - stars: Hertzsprung-Russell (HR) and C-M diagrams

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 M 5 GlC 15 18 33.22 +02 04 51.7   7.34 5.95     ~ 1880 0
2 M 107 GlC 16 32 31.86 -13 03 13.6   9.96 8.85     ~ 750 0
3 NGC 6325 GlC 17 17 59.27 -23 45 57.7   11.49       ~ 159 0
4 NGC 6355 GlC 17 23 58.65 -26 21 12.3   12.46 11.05     ~ 141 0

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2022.08.18-04:43:40

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