2006A&A...449..143M


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.05CEST07:14:32

2006A&A...449..143M - Astronomy and Astrophysics, volume 449, 143-149 (2006/4-1)

Age estimations of M31 globular clusters from their spectral energy distributions.

MA J., ZHOU X., BURSTEIN D., YANG Y., FAN Z., CHEN J., JIANG Z., WU Z., WU J. and ZHANG T.

Abstract (from CDS):

This paper presents accurate spectral energy distributions (SEDs) of 15 M31 globular clusters (GCs) confirmed by spectroscopy and/or high spatial-resolution imaging, as well as 30 M31 globular cluster candidates detected by Mochejska et al. (1998AcA....48..455M). Most of these candidates have mV>18, deeper than previous searches, and these candidates have not yet been confirmed to be globular clusters. The SEDs of these clusters and candidates are obtained as part of the BATC Multicolor Survey of the Sky, in which the spectrophotometrically-calibrated CCD images of M31 in 13 intermediate-band filters from 4000 to 10000Å were observed. These filters are specifically designed to exclude most of the bright and variable night-sky emission lines including the OH forest. In comparison to the SEDs of true GCs, we find that some of the candidate objects are not GCs in M31. SED fits show that theoretical simple stellar population (SSP) models can fit the true GCs very well. We estimate the ages of these GCs by comparing with SSP models. We find that, the M31 clusters range in age from a few ten Myr to a few Gyr old, as well as old GCs, confirming the conclusion that has been found by Barmby et al. (2000AJ....119..727B), Williams & Hodge (2001ApJ...548..190W), Beasley et al. (2004AJ....128.1623B), Burstein et al. (2004ApJ...614..158B) and Puzia et al. (2005A&A...434..909P) in their investigations of the SEDs of M31 globular clusters.

Abstract Copyright:

Journal keyword(s): galaxies: individual: M31 - galaxies: star clusters - galaxies: evolution

VizieR on-line data: <Available at CDS (J/A+A/449/143): stars.dat table1.dat table2.dat>

Simbad objects: 70

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Number of rows : 70

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 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 10902 1
2 M31GC J004345+411812 GlC 00 43 45.09 +41 18 12.0 19.56   19.38   18.05 ~ 14 1
3 [JSD2015] AP 163 Cl* 00 43 49.1098548340 +41 14 15.643532478 18.73   18.35   17.52 ~ 12 0
4 M31GC J004354+411412 GlC 00 43 54.27 +41 14 11.7 18.52   18.47   17.89 ~ 12 1
5 [JSD2015] AP 91 GlC 00 43 57.79 +41 13 52.7 16.54   17.48   17.32 ~ 10 0
6 M31GC J004358+412133 GlC 00 43 58.00 +41 21 33.6 20.29   19.93   19.36 ~ 11 1
7 Bol 205 GlC 00 43 58.147 +41 24 38.66 16.52 16.290 15.44 14.930 14.44 ~ 47 0
8 Bol 206 GlC 00 43 58.62 +41 30 18.1 16.08 15.856 15.06 14.540 14.08 ~ 47 0
9 Bol 208 GlC 00 44 00.08 +41 23 11.5 19.53 18.730 18.05 17.190 16.73 ~ 33 0
10 [JSD2015] AP 796 GlC 00 44 00.8333942344 +41 17 12.469522720 18.90   18.01   17.12 ~ 16 0
11 [JSD2015] AP 756 GlC 00 44 02.6207580132 +41 25 26.689603847 17.62 17.410 16.60 16.140 15.67 ~ 41 0
12 Bol 210 GlC 00 44 02.78 +41 14 24.5 18.14 18.09 17.57 17.21 16.20 ~ 31 1
13 M31GC J004403+412140 GlC 00 44 02.83 +41 21 40.3 20.44   18.77   18.13 ~ 12 0
14 Bol 211 GlC 00 44 02.91 +41 20 04.7 17.55 17.290 16.80 16.130 15.82 ~ 39 0
15 2E 165 GlC 00 44 03.5086476692 +41 30 38.649662839 18.22 17.830 16.83 16.220 15.81 ~ 49 0
16 Bol 214 GlC 00 44 03.977 +41 26 18.56 18.45 18.260 17.65 17.140 16.72 ~ 37 0
17 M31GC J004408+412354 GlC 00 44 08.04 +41 23 54.2 20.12   19.53   17.81 ~ 12 1
18 [JSD2015] AP 1255 GlC 00 44 10.6004320443 +41 23 51.102039488 17.79 17.430 16.52 15.950 15.48 ~ 42 0
19 BA 2-4 G 00 44 11.23 +41 25 22.7 19.060 17.900 16.510   16.50 ~ 12 0
20 [JSD2015] AP 834 GlC 00 44 11.7070004065 +41 23 53.926789381 19.14   18.35   17.56 ~ 16 0
21 M31GC J004414+412219 GlC 00 44 13.95 +41 22 18.8 17.70   18.53   19.43 ~ 13 1
22 [JSD2015] AP 881 GlC 00 44 14.3252318610 +41 19 19.376228666 15.89 15.660 14.76 14.230 13.74 ~ 67 0
23 Bol 277 Cl* 00 44 16.91 +41 14 15.8 20.09 19.12 18.50   17.26 ~ 16 0
24 M31GC J004419+412110 GlC 00 44 18.92 +41 21 09.6 18.95   18.65   17.84 ~ 12 1
25 [JSD2015] AP 253 GlC 00 44 19.4549832912 +41 30 34.664513446 17.48 17.330 16.51 16.100 15.73 ~ 45 0
26 M31GC J004420+412409 GlC 00 44 19.67 +41 24 08.9 19.13   18.64   18.93 ~ 12 1
27 M31GC J004420+412720 * 00 44 20.2327279122 +41 27 19.758769650     20.23   18.75 ~ 11 0
28 Bol D112 GlC 00 44 21.18 +41 19 10.2 19.56   18.65   17.38 ~ 14 0
29 M31GC J004422+413340 GlC 00 44 22.04 +41 33 39.8 20.15   19.14   18.40 ~ 12 0
30 2MASX J00442305+4133065 GlC 00 44 23.0615891246 +41 33 06.330000321 18.05 17.760 16.77 16.010 15.77 ~ 43 0
31 Bol 278 GlC 00 44 23.32 +41 35 03.8 19.47   18.83   18.60 ~ 16 1
32 M31GC J004424+413359 GlC 00 44 24.27 +41 33 58.1 19.43   18.90   18.15 ~ 14 1
33 Bol 222 GlC 00 44 25.35 +41 14 11.9 18.64 18.11 17.43 16.87 16.71 ~ 40 1
34 Bol D115 GlC 00 44 26.52 +41 38 57.4 19.34   18.53   18.25 ~ 15 0
35 [JSD2015] AP 48 GlC 00 44 27.0318140376 +41 34 37.010873545 17.93 17.960 18.51   17.36 ~ 31 1
36 BA 3-1 GlC 00 44 27.09 +41 28 49.8 16.24 16.240 15.31 14.890 14.57 ~ 52 0
37 Bol 473 * 00 44 27.4950707429 +41 11 34.043514598 18.650 18.440 17.45 16.900 16.550 ~ 9 0
38 2E 166 GlC 00 44 29.5614604627 +41 21 35.695495111 15.50 15.000 14.220 13.679 13.02 ~ 124 0
39 2MASX J00443052+4110585 G 00 44 30.520 +41 10 58.58 19.080 19.040 17.650   16.74 ~ 15 0
40 M31GC J004431+413005 GlC 00 44 31.35 +41 30 04.6 19.44 19.61 19.18   18.63 ~ 16 1
41 M31GC J004431+412755 GlC 00 44 31.51 +41 27 55.3 21.68   19.59   18.61 ~ 13 1
42 Bol 229 GlC 00 44 33.80 +41 38 28.6 17.24 17.140 17.17 15.950 15.63 ~ 42 0
43 M31GC J004434+412103 GlC 00 44 33.97 +41 21 02.9 19.48   18.87   18.68 ~ 11 1
44 [JSD2015] AP 2800 GlC 00 44 34.3908024790 +41 23 11.784901854 20.72   20.16   18.67 ~ 12 1
45 [JSD2015] AP 1429 GlC 00 44 34.44 +41 24 09.3 19.84   19.68   19.51 ~ 10 0
46 M31GC J004436+413533 GlC 00 44 36.37 +41 35 33.1 20.92 19.39 18.73   17.34 ~ 16 0
47 KHM31 204 Cl* 00 44 36.67 +41 27 14.1 19.42 22.46 18.93   17.880 ~ 11 1
48 M31GC J004438+412852 GlC 00 44 37.82 +41 28 52.1 20.36   18.84   17.64 ~ 14 0
49 [JSD2015] AP 1201 GlC 00 44 38.5939816773 +41 27 46.894068279 18.36 18.110 17.26 16.840 16.29 ~ 36 0
50 M31GC J004440+412428 GlC 00 44 39.70 +41 24 27.9 18.68   18.26   17.65 ~ 18 1
51 M31GC J004441+413006 GlC 00 44 40.68 +41 30 06.5 20.17   19.47   18.41 ~ 14 1
52 [JSD2015] AP 859 GlC 00 44 46.3840927679 +41 29 17.732884128 18.12 17.87 16.81 16.170 15.79 ~ 47 0
53 [JSD2015] AP 1940 GlC 00 44 56.18 +41 41 35.8 21.20   20.83   19.72 ~ 8 0
54 [JSD2015] AP 627 GlC 00 44 59.16 +41 42 25.6 20.65   19.96   18.360 ~ 8 0
55 M31GC J004500+413339 Cl* 00 44 59.60 +41 33 39.1 20.05   19.36   18.18 ~ 11 1
56 [JSD2015] AP 920 GlC 00 45 01.56 +41 39 04.4 21.29 21.27 19.98   19.09 ~ 12 0
57 [JSD2015] AP 680 GlC 00 45 03.35 +41 40 04.9 20.76 20.46 18.63   16.89 ~ 15 0
58 M31GC J004507+413858 * 00 45 06.8248149641 +41 38 57.669287574     19.230   18.890 ~ 7 0
59 Bol 476 GlC 00 45 07.18 +41 40 31.2 19.89 19.12 18.12 17.69 17.00 ~ 18 0
60 M31GC J004508+414531 GlC 00 45 07.64 +41 45 30.9 20.23   20.20   19.24 ~ 11 1
61 Bol 477 GlC 00 45 08.33 +41 39 37.9 18.57 18.78 18.46 17.79 17.63 ~ 24 1
62 M31GC J004510+414223 GlC 00 45 09.97 +41 42 23.5 19.91   19.37   18.880 ~ 7 0
63 Bol D260 Gl? 00 45 10.87 +41 40 24.0 18.600 18.310 17.11 16.510   ~ 7 0
64 [JSD2015] AP 2020 GlC 00 45 10.9666668285 +41 38 56.220611882     20.37   18.91 ~ 10 1
65 M31GC J004512+414020 GlC 00 45 11.78 +41 40 19.7 21.18   19.08   17.47 ~ 12 0
66 M31GC J004514+414226 GlC 00 45 13.81 +41 42 26.4 18.90 18.71 18.56 18.17 18.01 ~ 15 1
67 HD 19445 PM* 03 08 25.5884 +26 19 51.400 8.29 8.52 8.06 7.60 7.27 G2VFe-3 739 0
68 HD 84937 PM* 09 48 56.09801 +13 44 39.3237 8.49 8.68 8.32 7.97 7.70 F8Vm-5 717 0
69 BD+26 2606 SB* 14 49 02.3550036151 +25 42 09.136461939 9.92 10.16 9.73 9.27 8.95 A5 351 0
70 BD+17 4708 SB* 22 11 31.3751899315 +18 05 34.158392398 9.73 9.91 9.46 9.03 8.70 sdF8 535 0

    Equat.    Gal    SGal    Ecl

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2020.07.05-07:14:32

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