2007AJ....133.1658S


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.18CEST10:41:32

2007AJ....133.1658S - Astron. J., 133, 1658-1672 (2007/April-0)

The ACS survey of Galactic globular clusters. I. Overview and clusters without previous Hubble Space Telescope photometry.

SARAJEDINI A., BEDIN L.R., CHABOYER B., DOTTER A., SIEGEL M., ANDERSON J., APARICIO A., KING I., MAJEWSKI S., MARIN-FRANCH A., PIOTTO G., REID I.N. and ROSENBERG A.

Abstract (from CDS):

We present the first results of a large Advanced Camera for Surveys (ACS) survey of Galactic globular clusters. This Hubble Space Telescope (HST) Treasury project is designed to obtain photometry with S/N (signal-to-noise ratio) ≳10 for main-sequence stars with masses ≳0.2 M in a sample of globulars using the ACS Wide Field Channel. Here we focus on clusters without previous HST imaging data. These include NGC 5466, NGC 6779, NGC 5053, NGC 6144, Palomar 2, E3, Lyngå 7, Palomar 1, and NGC 6366. Our color-magnitude diagrams (CMDs) extend reliably from the horizontal branch to as much as 7 mag fainter than the main-sequence turnoff and represent the deepest CMDs published to date for these clusters. Using fiducial sequences for three standard clusters (M92, NGC 6752, and 47 Tuc) with well-known metallicities and distances, we perform main-sequence fitting on the target clusters in order to obtain estimates of their distances and reddenings. These comparisons, along with fitting the cluster main sequences to theoretical isochrones, yield ages for the target clusters. We find that the majority of the clusters have ages that are consistent with the standard clusters at their metallicities. The exceptions are E3, which appears ∼2 Gyr younger than 47 Tuc, and Pal 1, which could be as much as 8 Gyr younger than 47 Tuc.

Abstract Copyright:

Journal keyword(s): Galaxy: Globular Clusters: Individual: Alphanumeric: E3 - Galaxy: Globular Clusters: Individual: Name: Lyngå 7 - Galaxy: Globular Clusters: Individual: NGC Number: NGC 5053 - Galaxy: Globular Clusters: Individual: NGC Number: NGC 5466 - Galaxy: Globular Clusters: Individual: NGC Number: NGC 6144 - globular clusters: individual (NGC 6366) - globular clusters: individual (NGC 6779) - Galaxy: Globular Clusters: Individual: Name: Palomar 1 - globular clusters: individual (Palomar 2) - Stars: Hertzsprung-Russell Diagram

VizieR on-line data: <Available at CDS (J/AJ/133/1658): clusters.dat acssggc.dat>

Nomenclature: [SBC2007] NGC NNNN NNNNNN, [SBC2007] Arp2 NNNNN, [SBC2007] E3 NNNN, [SBC2007] Lynga7 NNNNN, [SBC2007] PalNN NNNNN, [SBC2007] TerzanN NNNNN, N∼6 million.

Simbad objects: 73

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Number of rows : 73

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 104 GlC 00 24 05.359 -72 04 53.20   5.78 4.09     ~ 3637 0
2 NGC 288 GlC 00 52 45.24 -26 34 57.4   10 8.13     ~ 951 0
3 NGC 362 GlC 01 03 14.26 -70 50 55.6     6.58     ~ 975 0
4 NGC 1261 GlC 03 12 16.21 -55 12 58.4     8.63     ~ 445 0
5 Cl Pal 1 GlC 03 33 20.04 +79 34 51.8   17.2       ~ 209 1
6 Cl Pal 2 GlC 04 46 05.91 +31 22 53.4   15       ~ 150 0
7 NGC 1851 GlC 05 14 06.76 -40 02 47.6   8.80 7.23     ~ 1279 0
8 NAME Gal Anticenter reg 05 46 +28.9           ~ 768 0
9 NGC 2298 GlC 06 48 59.41 -36 00 19.1   10.77 8.89     ~ 444 0
10 NGC 2808 GlC 09 12 03.10 -64 51 48.6           ~ 1292 0
11 NAME E 3 GlC 09 20 57.07 -77 16 54.8           ~ 139 0
12 NGC 3201 GlC 10 17 36.82 -46 24 44.9           ~ 760 0
13 [SBC2007] NGC 3201 12560 EB* 10 17 37.0901115377 -46 24 55.271141949     17.572   16.872 ~ 3 0
14 NGC 4147 GlC 12 10 06.149 +18 32 31.78   11.45 10.74     ~ 511 0
15 M 68 GlC 12 39 27.98 -26 44 38.6   10.26 7.96     ~ 906 0
16 NGC 4833 GlC 12 59 33.92 -70 52 35.4   8.72 7.79     ~ 369 0
17 M 53 GlC 13 12 55.25 +18 10 05.4   8.95 7.79     ~ 742 0
18 NGC 5053 GlC 13 16 27.09 +17 42 00.9     9.96     ~ 554 0
19 NGC 5139 GlC 13 26 47.28 -47 28 46.1   6.12 5.33     ~ 3104 0
20 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2313 0
21 NGC 5286 GlC 13 46 26.81 -51 22 27.3   9.18 8.31     ~ 385 0
22 NGC 5466 GlC 14 05 27.29 +28 32 04.0   10.5 9.70     ~ 749 0
23 M 5 GlC 15 18 33.22 +02 04 51.7   7.34 5.95     ~ 1815 0
24 NGC 5927 GlC 15 28 00.69 -50 40 22.9   10.13 8.86     ~ 418 0
25 NGC 5986 GlC 15 46 03.00 -37 47 11.1     6.92     ~ 322 0
26 Cl Lynga 7 GlC 16 11 03.65 -55 19 04.0           ~ 95 0
27 M 80 GlC 16 17 02.41 -22 58 33.9           ~ 643 0
28 M 4 GlC 16 23 35.22 -26 31 32.7           ~ 1713 0
29 NGC 6101 GlC 16 25 48.12 -72 12 07.9   10.90 10.08     ~ 252 0
30 NGC 6144 GlC 16 27 13.86 -26 01 24.6   10.55 9.63     ~ 215 0
31 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3168 1
32 M 107 GlC 16 32 31.86 -13 03 13.6   9.96 8.85     ~ 727 0
33 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2047 0
34 NGC 6229 GlC 16 46 58.641 +47 31 36.38   9.38 9.86     ~ 325 0
35 M 12 GlC 16 47 14.18 -01 56 54.7   8.52 6.07     ~ 600 0
36 M 10 GlC 16 57 09.05 -04 06 01.1     4.98     ~ 714 0
37 NGC 6304 GlC 17 14 32.25 -29 27 43.3   10.33 9.03     ~ 310 0
38 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 1943 0
39 NGC 6352 GlC 17 25 29.11 -48 25 19.8   9.95 8.87     ~ 353 0
40 NGC 6366 GlC 17 27 44.24 -05 04 47.5           ~ 271 0
41 NGC 6362 GlC 17 31 54.99 -67 02 54.0   9.72 8.86     ~ 506 0
42 NGC 6388 GlC 17 36 17.461 -44 44 08.34   7.40       ~ 832 1
43 NGC 6397 GlC 17 40 42.09 -53 40 27.6   7.39 5.17     ~ 1833 1
44 NGC 6441 GlC 17 50 13.06 -37 03 05.2   9.26 8.00     ~ 793 0
45 NGC 6496 GlC 17 59 03.68 -44 15 57.4   9.96       ~ 191 0
46 NGC 6535 GlC 18 03 50.51 -00 17 51.5   11.35 9.85     ~ 256 0
47 NGC 6541 GlC 18 08 02.36 -43 42 53.6   8.06 7.32     ~ 336 1
48 NGC 6584 GlC 18 18 37.60 -52 12 56.8   10.32 8.17     ~ 256 0
49 NGC 6624 GlC 18 23 40.51 -30 21 39.7           ~ 799 1
50 M 69 GlC 18 31 23.10 -32 20 53.1   9.32 8.31     ~ 421 1
51 NGC 6652 GlC 18 35 45.63 -32 59 26.6   10.64 9.75     ~ 366 0
52 M 22 GlC 18 36 23.94 -23 54 17.1   7.16 6.17     ~ 1252 0
53 M 70 GlC 18 43 12.76 -32 17 31.6   9.76 9.06     ~ 344 0
54 NAME SDG G 18 55 03.1 -30 28 42   4.5 3.6     ~ 1836 2
55 M 54 GlC 18 55 03.33 -30 28 47.5           ~ 943 0
56 NGC 6717 GlC 18 55 06.04 -22 42 05.3   11.29 10.35     ~ 206 0
57 NGC 6723 GlC 18 59 33.15 -36 37 56.1           ~ 446 0
58 NGC 6752 GlC 19 10 52.11 -59 59 04.4   6.96 6.28     ~ 1847 0
59 M 56 GlC 19 16 35.57 +30 11 00.5   8.90       ~ 376 0
60 Cl Terzan 7 GlC 19 17 43.92 -34 39 27.8           ~ 377 0
61 Cl Arp 2 GlC 19 28 44.11 -30 21 20.3     12.41     ~ 314 0
62 M 55 GlC 19 39 59.71 -30 57 53.1     6.49     ~ 780 0
63 Cl Terzan 8 GlC 19 41 44.41 -33 59 58.1     11.54     ~ 272 0
64 M 71 GlC 19 53 46.49 +18 46 45.1   7.91 6.1     ~ 1045 0
65 NGC 6934 GlC 20 34 11.37 +07 24 16.1   10.48 9.75     ~ 374 0
66 M 72 GlC 20 53 27.70 -12 32 14.3   9.95 8.96     ~ 380 0
67 M 15 GlC 21 29 58.33 +12 10 01.2   3       ~ 2958 0
68 M 2 GlC 21 33 27.02 -00 49 23.7     6.25     ~ 928 1
69 M 30 GlC 21 40 22.12 -23 10 47.5     7.10     ~ 947 0
70 Cl Pal 12 GlC 21 46 38.84 -21 15 09.4     11.89     ~ 465 0
71 GCl 124 GlC 23 06 44.48 +12 46 19.2   15.6       ~ 241 1
72 NAME Galactic Bulge reg ~ ~           ~ 3581 0
73 NAME Monoceros Stream St* ~ ~           ~ 328 0

    Equat.    Gal    SGal    Ecl

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2021.05.18-10:41:32

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