2000A&A...362..953O


Query : 2000A&A...362..953O

2000A&A...362..953O - Astronomy and Astrophysics, volume 362, 953-958 (2000/10-3)

Colour-magnitude diagrams of the inner halo globular clusters NGC 5986 and NGC 6712.

ORTOLANI S., MOMANY Y., BARBUY B., BICA E. and CATELAN M.

Abstract (from CDS):

We present V and I photometry for NGC 5986 and B and V for NGC 6712. NGC 5986 has a blue extended horizontal branch, while NGC 6712 has a composite red and blue horizontal branch, where the latter extends to unusual bluer colours. Both clusters have RR Lyrae. We derive a reddening E(B-V)≃0.29 and a distance from the Sun d≃11.2kpc for NGC 5986, and E(B-V)≃0.33 and d≃7.9kpc for NGC 6712. Their galactocentric distances of RGC=5.2 and 3.6kpc respectively, locate them in the inner halo; NGC 6712 could be considered to be located in the bulge. NGC 6712 has |z|≃500pc, indicating that the cluster is crossing the disk. We estimate metallicities of [Fe/H]=-1.6 and -1.0 respectively for NGC 5986 and NGC 6712.

Abstract Copyright:

Journal keyword(s): stars: Hertzsprung-Russell (HR) and C-M diagrams - Galaxy: globular clusters: individual: NGC 5986, NGC 6712

Simbad objects: 13

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Number of rows : 13
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 M 5 GlC 15 18 33.22 +02 04 51.7     5.95     ~ 1977 0
2 NGC 5986 GlC 15 46 03.00 -37 47 11.1     6.92     ~ 374 0
3 M 107 GlC 16 32 31.86 -13 03 13.6           ~ 786 0
4 NGC 6388 GlC 17 36 17.461 -44 44 08.34           ~ 913 1
5 NGC 6441 GlC 17 50 13.06 -37 03 05.2           ~ 884 0
6 Cl* NGC 6712 SAW V10 LP* 18 52 57.3346578504 -08 41 43.865673756   15.74 13.68   11.27 ~ 14 0
7 V* MN Sct LP* 18 52 58.7862962736 -08 42 06.069083940     13.58 13.025 11.26 ~ 11 1
8 NGC 6712 GlC 18 53 04.32 -08 42 21.5           ~ 519 0
9 Cl* NGC 6712 SAW V6 RR* 18 53 05.3362497576 -08 42 53.501630184   16.16 16.45   15.56 ~ 16 0
10 V* MR Sct Mi* 18 53 05.6504165616 -08 41 12.274524312   15.24 13.32   10.90 M 19 0
11 Cl* NGC 6712 SAW V17 V* 18 53 05.8442644632 -08 41 23.313741900   15.53 14.89   14.23 ~ 5 0
12 V* AP Sct Mi* 18 53 08.7721761240 -08 41 56.664861792     12.55 12.955 10.50 ~ 21 0
13 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2000 0

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