1994PASP..106..404S

Query : 1994PASP..106..404S

1994PASP..106..404S - Publ. Astron. Soc. Pac., 106, 404-412 (1994/April-0)

CCD photometry of the galactic globular cluster NGC 6535 in the B and V passbands.

SARAJEDINI A.

Abstract (from CDS):

The first CCD color-magnitude diagram (CMD) in B and V is presented for the Galactic globular cluster NGC 6535. From this CMD, which extends below the main sequence turnoff, we draw the following conclusions: (1) The horizontal branch (HB) is predominantly blue in nature with no RR Lyrae variables known to be cluster members. Nonetheless, based on a comparison with clusters which have blue HBs and RR Lyraes (M15 and M79), we infer a mean HB magnitude of <V_RR> = 15.73 ± 0.11 for NGC 6535. (2) Again, via a direct comparison with the blue HBs of M15 and M79, we derive a cluster reddening of E(B-V)=0.44 ± 0.02. (3) When combined with the apparent color of the red giant branch at the level of the HB, (B-V)_g = 1.18 ± 0.02, the derived reddening yields a metal abundance of [Fe/H] = -1.85 ± 0.10, similar to that of NGC 6397. (4) Application of the delta-V_TO-HB and delta(B-V)_SGB-TO cluster dating techniques reveals no perceptible age difference between NGC 6535 and NGC 6397. (5) A significant population of 9 blue straggler candidates is detected in NGC 6535. However, this is too few to facilitate a meaningful analysis of their radial distribution.

Abstract Copyright: ∼

Journal keyword(s):

VizieR on-line data: <Available at CDS (J/PASP/106/404): table2>

Nomenclature: Table 2: Cl* NGC 6535 SAR NNN (Nos 1-932).

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

Simbad objects: 54

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Number of rows : 54
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 M 79 GlC 05 24 10.59 -24 31 27.3     8.16     ~ 883 0
2 NGC 6101 GlC 16 25 48.12 -72 12 07.9           ~ 337 0
3 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 2240 0
4 NGC 6397 GlC 17 40 42.09 -53 40 27.6     5.17     ~ 2103 0
5 NGC 6535 GlC 18 03 50.51 -00 17 51.5     9.85     ~ 320 0
6 Cl* NGC 6535 SAR 5 * ~ ~   20.09 19.08     ~ 1 0
7 Cl* NGC 6535 SAR 6 * ~ ~   20.18 19.06     ~ 1 0
8 Cl* NGC 6535 SAR 7 * ~ ~   20.90 20.04     ~ 1 0
9 Cl* NGC 6535 SAR 8 * ~ ~   18.33 17.20     ~ 1 0
10 Cl* NGC 6535 SAR 9 * ~ ~   19.35 18.30     ~ 1 0
11 Cl* NGC 6535 SAR 10 * ~ ~   20.66 19.43     ~ 1 0
12 Cl* NGC 6535 SAR 11 * ~ ~   19.21 18.17     ~ 1 0
13 Cl* NGC 6535 SAR 12 * ~ ~   19.43 18.25     ~ 1 0
14 Cl* NGC 6535 SAR 13 * ~ ~   17.88 16.76     ~ 1 0
15 Cl* NGC 6535 SAR 14 * ~ ~   18.37 17.29     ~ 1 0
16 Cl* NGC 6535 SAR 15 * ~ ~   18.95 17.83     ~ 1 0
17 Cl* NGC 6535 SAR 16 * ~ ~   16.42 15.34     ~ 1 0
18 Cl* NGC 6535 SAR 17 * ~ ~   18.88 17.72     ~ 1 0
19 Cl* NGC 6535 SAR 18 * ~ ~   20.08 19.04     ~ 1 0
20 Cl* NGC 6535 SAR 19 * ~ ~   17.92 16.91     ~ 1 0
21 Cl* NGC 6535 SAR 20 * ~ ~   19.27 18.18     ~ 1 0
22 Cl* NGC 6535 SAR 21 * ~ ~   18.27 17.30     ~ 1 0
23 Cl* NGC 6535 SAR 22 * ~ ~   19.42 18.34     ~ 1 0
24 Cl* NGC 6535 SAR 23 * ~ ~   18.96 18.12     ~ 1 0
25 Cl* NGC 6535 SAR 24 * ~ ~   18.68 17.70     ~ 1 0
26 Cl* NGC 6535 SAR 25 * ~ ~   19.64 18.18     ~ 1 0
27 Cl* NGC 6535 SAR 26 * ~ ~   19.94 18.79     ~ 1 0
28 Cl* NGC 6535 SAR 27 * ~ ~   18.09 16.66     ~ 1 0
29 Cl* NGC 6535 SAR 28 * ~ ~   19.92 18.61     ~ 1 0
30 Cl* NGC 6535 SAR 29 * ~ ~   20.16 19.11     ~ 1 0
31 Cl* NGC 6535 SAR 30 * ~ ~   18.18 17.13     ~ 1 0
32 Cl* NGC 6535 SAR 31 * ~ ~   20.92 19.81     ~ 1 0
33 Cl* NGC 6535 SAR 33 * ~ ~   18.92 17.41     ~ 1 0
34 Cl* NGC 6535 SAR 34 * ~ ~   18.82 17.81     ~ 1 0
35 Cl* NGC 6535 SAR 35 * ~ ~   20.24 19.27     ~ 1 0
36 Cl* NGC 6535 SAR 36 * ~ ~   19.01 17.81     ~ 1 0
37 Cl* NGC 6535 SAR 37 * ~ ~   18.17 17.13     ~ 1 0
38 Cl* NGC 6535 SAR 38 * ~ ~   18.98 17.69     ~ 1 0
39 Cl* NGC 6535 SAR 39 * ~ ~   18.70 18.14     ~ 1 0
40 Cl* NGC 6535 SAR 40 * ~ ~   20.08 18.65     ~ 1 0
41 Cl* NGC 6535 SAR 41 * ~ ~   19.30 18.18     ~ 1 0
42 Cl* NGC 6535 SAR 42 * ~ ~   19.94 19.07     ~ 1 0
43 Cl* NGC 6535 SAR 43 * ~ ~   19.93 19.02     ~ 1 0
44 Cl* NGC 6535 SAR 44 * ~ ~   20.90 19.89     ~ 1 0
45 Cl* NGC 6535 SAR 45 * ~ ~   20.39 19.36     ~ 1 0
46 Cl* NGC 6535 SAR 46 * ~ ~   18.43 17.29     ~ 1 0
47 Cl* NGC 6535 SAR 47 * ~ ~   20.56 19.42     ~ 1 0
48 Cl* NGC 6535 SAR 49 * ~ ~   19.86 18.95     ~ 1 0
49 Cl* NGC 6535 SAR 50 * ~ ~   17.16 15.97     ~ 1 0
50 Cl* NGC 6535 SAR 48 * ~ ~   20.55 19.23     ~ 1 0
51 Cl* NGC 6535 SAR 1 * ~ ~   20.22 18.83     ~ 1 0
52 Cl* NGC 6535 SAR 2 * ~ ~   19.35 18.25     ~ 1 0
53 Cl* NGC 6535 SAR 3 * ~ ~   19.61 18.64     ~ 1 0
54 Cl* NGC 6535 SAR 4 * ~ ~   20.48 19.51     ~ 1 0

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