1998A&AS..127..167R


C.D.S. - SIMBAD4 rel 1.7 - 2020.05.26CEST06:14:34

1998A&AS..127..167R - Astron. Astrophys., Suppl. Ser., 127, 167-179 (1998/January-2)

V, I CCD photometry of metal-rich globular clusters: NGC 6528.

RICHTLER T., GREBEL E.K., SUBRAMANIAM A. and SAGAR R.

Abstract (from CDS):

We present CCD photometry in V and I for the metal-rich globular cluster NGC 6528. A comparison with previous photometry reveals discrepancies of the order 0.1 to 0.2mag in V, emphasizing the need for independent photometry. As found previously, the giant branch (or the asymptotic giant branch, which cannot be distinguished) of the cluster extends to V-I=7. Population synthesis in V-I must take these red stars into account in order to understand integrated red colours of bulge populations. Currently available theoretical isochrones do not reproduce the shape of the RGB/AGB. The derivation of reliable values for reddening, distance and metallicity of NGC 6528 is hampered by uncertainties in the extrapolation to high metallicity, which dominate the absolute error rather than the photometric uncertainty does. Together with other properties (old age derived from HST data, high radial velocity), this object is more likely a member of the bulge than of the disk population.

Abstract Copyright:

Journal keyword(s): Galaxy: globular clusters: general - individual: NGC 6528 - galaxy abundances - stars: late-type - HR diagram

VizieR on-line data: <Available at CDS (J/A+AS/127/167): table6>

Nomenclature: Table 3: Cl* NGC 6528 RGS 3-NN (Nos 3-1 to 3-53). Table 6: Cl* NGC 6528 RGS 6-NNNNN N=24999

Status at CDS:   will not be processed
// All or part of tables of objects will not be ingested in SIMBAD.

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 - 2020
#notes
1 NGC 104 GlC 00 24 05.359 -72 04 53.20   5.78 4.09     ~ 3530 0
2 C 1235-509 GlC 12 38 40.20 -51 09 01.0           ~ 318 0
3 NGC 5927 GlC 15 28 00.69 -50 40 22.9   10.13 8.86     ~ 402 0
4 NGC 6352 GlC 17 25 29.11 -48 25 19.8   9.95 8.87     ~ 335 0
5 Cl Terzan 5 Cl* 17 48 05.00 -24 46 48.0           ~ 688 1
6 NGC 6496 GlC 17 59 03.68 -44 15 57.4   9.96       ~ 179 0
7 NGC 6528 GlC 18 04 49.61 -30 03 20.8   12.12 10.65     ~ 462 0
8 NGC 6553 GlC 18 09 15.68 -25 54 27.9   9.08       ~ 531 0
9 NGC 6624 GlC 18 23 40.51 -30 21 39.7           ~ 772 1
10 M 69 GlC 18 31 23.10 -32 20 53.1   9.32 8.31     ~ 402 1
11 NGC 6791 OpC 19 20 53 +37 46.3   10.52 9.5     ~ 865 0
12 M 71 GlC 19 53 46.49 +18 46 45.1   7.91 6.1     ~ 1021 0
13 Cl Pal 12 GlC 21 46 38.84 -21 15 09.4     11.89     ~ 444 0

    Equat.    Gal    SGal    Ecl

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2020.05.26-06:14:34

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