2010A&A...511A..23P


C.D.S. - SIMBAD4 rel 1.7 - 2021.02.24CET22:01:14

2010A&A...511A..23P - Astronomy and Astrophysics, volume 511, A23-23 (2010/2-2)

An HST/WFPC2 survey of bright young clusters in M 31. IV. Age and mass estimates.

PERINA S., COHEN J.G., BARMBY P., BEASLEY M.A., BELLAZZINI M., BRODIE J.P., FEDERICI L., FUSI PECCI F., GALLETI S., HODGE P.W., HUCHRA J.P., KISSLER-PATIG M., PUZIA T.H. and STRADER J.

Abstract (from CDS):

We present the main results of an imaging survey of possible young massive clusters (YMC) in M31 performed with the Wide Field and Planetary Camera 2 (WFPC2) on the Hubble Space Telescope (HST), with the aim of estimating their age and their mass. We obtained shallow (to B∼25) photometry of individual stars in 19 clusters (of the 20 targets of the survey). We present the images and color magnitude diagrams (CMDs) of all of our targets. Point spread function fitting photometry of individual stars was obtained for all the WFPC2 images of the target clusters, and the completeness of the final samples was estimated using extensive sets of artificial stars experiments. The reddening, age, and metallicity of the clusters were estimated by comparing the observed CMDs and luminosity functions (LFs) with theoretical models. Stellar masses were estimated by comparison with theoretical models in the log(Age) vs. absolute integrated magnitude plane, using ages estimated from our CMDs and integrated J, H, K magnitudes from 2MASS-6X. Nineteen of the twenty surveyed candidates were confirmed to be real star clusters, while one turned out to be a bright star. Three of the clusters were found not to be good YMC candidates from newly available integrated spectroscopy and were in fact found to be old from their CMD. Of the remaining sixteen clusters, fourteen have ages between 25Myr and 280Myr, two have older ages than 500Myr (lower limits). By including ten other YMC with HST photometry from the literature, we assembled a sample of 25 clusters younger than 1 Gyr, with mass ranging from 0.6x104M to 6x104M, with an average of ∼3x104M. Our estimates of ages and masses well agree with recent independent studies based on integrated spectra. The clusters considered here are confirmed to have masses significantly higher than Galactic open clusters (OC) in the same age range. Our analysis indicates that YMCs are relatively common in all the largest star-forming galaxies of the Local Group, while the lack of known YMC older than 20Myr in the Milky Way may stem from selection effects.

Abstract Copyright:

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

Simbad objects: 114

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Number of rows : 114

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 NAME Mayall III GlC 00 33 33.7864936074 +39 31 18.818531785 16.750 16.482 15.807 15.325   ~ 52 0
2 Bol 292 GlC 00 36 16.6769938424 +40 58 26.470646632 17.870 17.891 16.995 16.624 16.060 ~ 38 0
3 BA 3-19 GlC 00 36 46.7345363408 +40 19 42.273414726 17.730 17.460 16.750 16.240 15.730 ~ 38 0
4 Bol D150 GlC 00 36 59.8800044923 +41 25 30.157913216 18.120 18.160 17.550 16.930 16.37 ~ 21 0
5 Bol 423 GlC 00 37 56.71 +40 57 35.5 18.420 18.320 17.720 17.230 16.740 ~ 20 0
6 Bol 303 GlC 00 38 50.5915468083 +40 27 30.870969069 18.411 18.325 17.890 17.634 17.274 ~ 25 1
7 Bol 431 GlC 00 38 54.77 +40 34 56.3 18.181 18.180 17.736 17.367 16.443 ~ 23 1
8 Bol 307 GlC 00 39 18.45 +40 32 58.1 18.408 18.178 17.428 16.926 16.274 ~ 31 0
9 BA 3-17 GlC 00 39 33.72 +40 31 14.7 16.338 16.209 15.362 14.803 14.39 ~ 78 0
10 Bol 314 GlC 00 39 44.59 +40 14 07.9 18.456 18.341 17.770 17.405 16.942 ~ 29 1
11 2MASX J00394856+4031304 GlC 00 39 48.570 +40 31 30.45 16.304 16.581 16.090 15.755 15.298 ~ 52 1
12 Bol 317 GlC 00 39 55.27 +41 47 46.1 17.580 17.304 16.573 16.130 15.713 ~ 48 0
13 [HPJ88] IIIR-69 * 00 39 59.98 +40 34 23.0 20.421 19.416 18.050 17.125   ~ 9 0
14 Bol 318 GlC 00 40 00.86 +40 34 08.0 16.845 17.236 16.915 16.751 16.472 ~ 37 1
15 Bol 319 GlC 00 40 02.9967493424 +40 33 57.916067632 17.453 17.775 17.379 17.123 16.705 ~ 41 1
16 Bol 321 GlC 00 40 15.38 +40 27 45.9 17.913 18.068 17.615 17.316 16.834 ~ 28 1
17 [NVK2008] KW017 GlC 00 40 15.488 +40 39 59.68 18.241 18.554 18.168 17.927 17.577 ~ 26 1
18 [NVK2008] KW022 GlC 00 40 17.266 +40 39 04.95 17.589 18.032 17.789 17.657 17.394 ~ 33 1
19 Bol 324 GlC 00 40 20.47 +41 40 49.3 18.640 17.850 18.446   17.633 ~ 40 1
20 [NVK2008] KW040 GlC 00 40 20.782 +40 33 21.94 18.48 19.00 18.20 18.20 17.79 ~ 22 1
21 [NVK2008] KW048 GlC 00 40 24.101 +40 36 22.64 16.55 16.90 16.58 16.31 16.00 ~ 47 1
22 Bol 328 GlC 00 40 24.57 +41 40 22.4 19.230 18.750 17.861   16.918 ~ 44 0
23 2MASS J00402472+4037498 G 00 40 24.72 +40 37 49.8 18.512 17.944 16.624 15.774 14.906 ~ 16 0
24 Bol 331 GlC 00 40 26.15 +41 42 04.2   18.440 18.191   17.076 ~ 33 0
25 NAME VDB 0 OpC 00 40 29.385 +40 36 15.20 14.957 14.94 15.288 15.056 14.701 ~ 43 2
26 Bol 8 GlC 00 40 30.27 +41 16 08.7 18.160 17.660 16.560 16.210 15.510 ~ 41 0
27 [NVK2008] KW100 GlC 00 40 36.528 +40 40 15.25 18.311 18.316 17.49 17.207 16.688 ~ 37 1
28 KWC 21 GlC 00 40 37.3613695281 +40 48 45.299276691 18.882 19.043 18.672 18.455 18.088 ~ 26 1
29 2MASX J00404501+4059561 GlC 00 40 45.020 +40 59 56.13 20.344 19.411 18.130 17.265 16.381 ~ 34 0
30 Bol 451 GlC 00 40 46.826 +40 51 34.22   18.850 18.68 18.180 17.320 ~ 14 0
31 [NVK2008] KW144 GlC 00 40 52.256 +40 58 41.62 19.805 19.588 18.919 18.479 17.913 ~ 27 1
32 Bol D14 GlC 00 41 01.05 +41 06 32.8 19.480 19.439 18.745 18.257 17.616 ~ 13 1
33 Bol D15 GlC 00 41 02.73 +41 06 36.3 19.463 19.336 18.588 18.077 17.502 ~ 26 1
34 Bol 453 GlC 00 41 03.31 +41 00 55.4 18.33 18.17 17.30 16.76 16.04 ~ 18 1
35 M31GC J004112+410532 GlC 00 41 12.24 +41 05 28.8 19.022 18.776 18.149 17.692 16.947 ~ 27 1
36 Bol D19 GlC 00 41 16.14 +41 05 07.6 20.426 20.052 19.119 18.473 17.673 ~ 12 0
37 Bol 28 GlC 00 41 16.4877824857 +40 59 03.205829984 17.824 17.726 16.929 16.409 15.863 ~ 38 0
38 KWC 42 GlC 00 41 18.7265887650 +40 57 15.632022093 19.743 18.754 17.436 16.574 15.729 ~ 41 0
39 [NVK2008] KW232 GlC 00 41 24.084 +40 36 47.01 17.939 18.205 17.881 17.691 17.442 ~ 43 1
40 [NVK2008] KW245 GlC 00 41 29.473 +40 45 16.88 19.676 19.521 19.050 18.671 18.025 ~ 23 1
41 [NVK2008] KW284 GlC 00 41 38.831 +40 40 54.52 17.568 17.748 17.339 17.042 16.625 ~ 44 1
42 Bol D206 GlC 00 41 40.58 +40 50 06.8 19.503 19.314 18.792 18.493 18.137 ~ 21 1
43 [KLG2007] GC1 34 GlC 00 41 41.73 +40 52 01.6 19.834 19.720 19.059 18.642 18.108 ~ 12 1
44 Bol 43 GlC 00 41 42.31 +40 42 40.0 17.146 17.359 17.002 16.766 16.443 ~ 38 1
45 Bol 458 GlC 00 41 44.63 +40 51 22.6 18.808 18.632 18.104 17.774 17.340 ~ 25 1
46 Bol 47 GlC 00 41 45.56 +41 42 03.9 18.320 18.230 17.510 16.880 16.300 ~ 36 0
47 Bol 49 GlC 00 41 45.57 +40 49 55.0 18.519 18.284 17.724 17.354 16.874 ~ 37 1
48 Bol 57 GlC 00 41 52.8196521557 +40 52 05.114824569 18.460 18.388 17.662 17.186 16.735 ~ 34 0
49 Bol 66 GlC 00 42 03.09 +40 44 47.1 17.715 18.047 17.793 17.662 17.465 ~ 36 1
50 Bol 69 GlC 00 42 05.51 +41 26 09.4 18.988 18.794 18.273 17.966 17.685 ~ 29 1
51 Bol 74 GlC 00 42 08.05 +41 43 21.7 17.540 17.400 16.650 16.140 15.580 ~ 39 0
52 Bol D48 Gl? 00 42 12.56 +40 48 37.8 17.923 18.636 18.418 18.341 18.272 ~ 8 0
53 Bol 81 GlC 00 42 13.59 +40 48 39.0 17.886 17.652 17.056 16.642 16.108 ~ 32 1
54 Bol 83 GlC 00 42 16.44 +41 45 20.6 17.910 17.850 17.090 16.550 15.930 ~ 40 0
55 KHM31 384 GlC 00 42 21.07 +41 02 57.6 19.918 19.445 18.507 17.931 17.313 ~ 32 0
56 XMMU J004301.3+413017 GlC 00 42 21.71 +41 22 05.4 18.459 18.360 17.912 17.651 17.363 ~ 33 1
57 Bol 347 GlC 00 42 22.8907444306 +41 54 27.448075805 17.380 17.230 16.500 15.970 15.490 ~ 34 0
58 2MASS J00422700+4113206 * 00 42 26.9923965776 +41 13 19.930601766 17.310 17.263 16.632 16.279 16.000 ~ 16 0
59 Bol 101 GlC 00 42 29.0302149328 +41 08 15.635225919 18.010 17.761 16.914 16.411 15.848 ~ 34 0
60 Bol 102 * 00 42 29.80 +41 34 18.5 17.131 17.242 16.601 16.236 15.630 ~ 25 0
61 Bol D57 * 00 42 30.68 +41 20 52.5     19.62     ~ 8 0
62 M31GC J004231+412020 * 00 42 31.3700633079 +41 20 19.837767350 21.547 20.448 19.209 18.418 17.908 ~ 8 0
63 Bol D61 GlC 00 42 32.55 +41 21 41.9 19.636 19.646 19.329 19.175 18.901 ~ 11 1
64 [JSD2015] AP 2992 GlC 00 42 33.1047736040 +41 20 16.858221990 20.67 18.210 18.47 16.740 16.89 ~ 32 0
65 Bol 113 * 00 42 33.5420303795 +41 21 38.555626876 19.754 18.536 17.092 15.968   ~ 15 0
66 ACH 3 * 00 42 33.9745331435 +41 19 28.970414581 18.519 19.029 18.800 18.796 18.672 ~ 10 0
67 ACH 13 * 00 42 34.1353515768 +41 19 46.593148632 16.481 16.463 15.850 15.556 15.345 ~ 21 0
68 [JSD2015] AP 2850 GlC 00 42 34.2925073306 +41 12 44.924047005 17.954 17.840 17.085 16.567 16.16 ~ 41 0
69 [FMZ2005] 24 GlC 00 42 34.37 +40 57 09.3 17.440 16.990 16.88 15.900 15.340 ~ 47 0
70 M31GC J004235+411959 * 00 42 35.1724796815 +41 19 59.061060796 21.020 19.570 18.239 17.316 16.702 ~ 8 0
71 M31GC J004238+411918 * 00 42 37.4808701917 +41 19 18.138722666 16.384 16.197 15.468 15.081 14.824 ~ 12 0
72 ACH 5 GlC 00 42 37.98 +41 15 58.9 19.00 18.180 17.98 16.990 17.17 ~ 27 0
73 Bol D65 * 00 42 38.46 +41 18 48.2   17.200 18.50 16.100 15.540 ~ 7 0
74 Bol 121 * 00 42 38.6850111879 +41 20 21.199403499 18.697 17.809 16.822 16.250 15.891 ~ 12 0
75 Bol D68 GlC 00 42 39.90 +41 20 39.9 19.920 19.560 18.652 18.053 17.501 ~ 15 0
76 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11199 1
77 Bol 354 GlC 00 42 47.5210574909 +42 00 25.849799012 18.630 17.940 17.810 17.190 16.740 ~ 27 0
78 Bol 355 GlC 00 42 52.883 +41 57 59.41 18.310 18.290 17.760   16.820 ~ 14 0
79 2MASS J00430292+4115225 GlC 00 43 02.921 +41 15 22.51 18.34 17.851 16.930 16.348 15.870 ~ 56 1
80 Bol 154 GlC 00 43 12.44 +41 16 05.0 18.296 17.715 16.758 16.201 15.739 ~ 48 0
81 Bol 468 GlC 00 43 12.55 +39 47 57.3 18.490 18.490 17.788 17.200 16.626 ~ 35 0
82 Bol 160 GlC 00 43 14.94 +41 01 35.5 18.734 18.697 18.025 17.594 17.144 ~ 34 0
83 NAME Mayall IV GlC 00 43 17.85 +39 49 13.2 15.900 15.710 15.219 14.639 14.122 ~ 82 0
84 [JSD2015] AP 1710 GlC 00 43 18.1273531450 +41 12 29.196649714 19.451 18.826 17.821 17.214 16.658 ~ 36 0
85 Bol 170 GlC 00 43 23.4898143617 +40 50 41.548590460 18.711 18.309 17.388 16.823 16.241 ~ 30 0
86 Bol 197 GlC 00 43 49.72 +41 30 10.1 19.203 18.565 17.598 16.919 16.61 ~ 30 0
87 Bol 210 GlC 00 44 02.78 +41 14 24.5 18.14 18.09 17.57 17.21 16.20 ~ 31 1
88 Bol 214 GlC 00 44 03.977 +41 26 18.56 18.365 18.268 17.560 17.049 16.483 ~ 38 0
89 KHM31 194 GlC 00 44 04.90 +41 39 05.7 18.070 18.227 18.000 17.855 17.643 ~ 26 1
90 Bol 216 GlC 00 44 08.78 +41 37 55.8 17.543 17.556 17.168 16.899 16.548 ~ 37 1
91 Bol 222 GlC 00 44 25.35 +41 14 11.9 18.683 18.385 17.686 17.235 16.749 ~ 42 1
92 [JSD2015] AP 48 GlC 00 44 27.0318140376 +41 34 37.010873545 17.919 17.958 17.680 17.467 17.164 ~ 32 1
93 M31GC J004431+413005 GlC 00 44 31.35 +41 30 04.6 20.044 20.004 19.547 19.404 19.084 ~ 17 1
94 [JSD2015] AP 483 GlC 00 44 40.2320952192 +41 15 00.522937543 16.463 16.357 15.586 15.096 14.67 ~ 63 0
95 M31GC J004441+413006 GlC 00 44 40.68 +41 30 06.5 19.498 19.293 18.777 18.438 18.017 ~ 15 1
96 Bol 281 GlC 00 44 42.86 +41 20 08.5 18.756 18.405 17.67 17.021 16.375 ~ 28 0
97 BA 3-25 GlC 00 44 47.1952661535 +42 05 32.601974266 18.506 18.508 18.078 17.810 17.276 ~ 28 1
98 Bol 368 GlC 00 44 47.80 +41 51 09.1 17.851 18.288 18.05 18.035 17.839 ~ 38 1
99 Bol 475 GlC 00 44 56.05 +41 54 00.8 17.753 17.644 17.56 16.936 16.406 ~ 29 1
100 Bol D256 GlC 00 44 58.73 +41 54 36.7 17.125 17.394 16.824 16.383 15.722 ~ 19 1
101 Bol D257 GlC 00 44 59.50 +41 54 46.8 18.70 18.93 18.48   17.60 ~ 30 1
102 Bol 237 GlC 00 45 09.24 +41 22 34.5 17.852 17.700 16.948 16.385 15.789 ~ 40 0
103 Bol 374 GlC 00 45 44.52 +41 41 55.1 19.16 18.698 18.31 17.861 17.447 ~ 32 1
104 BA 3-3 GlC 00 45 45.55 +41 45 52.5 18.665 18.560 18.139 17.892 17.492 ~ 26 1
105 Bol 376 GlC 00 45 48.39 +41 42 39.9 18.325 18.371 17.974 17.725 17.349 ~ 33 1
106 [JSD2015] AP 145 GlC 00 45 52.3228065030 +41 42 48.996361194 19.452 19.577 19.198 18.911 18.578 ~ 25 2
107 Bol 484 GlC 00 45 53.90 +41 47 37.0 18.822 18.690 18.10 17.893 17.483 ~ 26 1
108 Bol 483 GlC 00 45 53.93 +42 02 18.0 18.994 18.839 18.397 18.098 17.576 ~ 27 1
109 [JSD2015] AP 226 GlC 00 46 06.2106491840 +42 00 53.127933100 17.461 17.282 16.829 16.573 16.114 ~ 32 1
110 Bol 486 GlC 00 46 08.57 +40 58 03.7 18.800 17.868 17.521 17.028 16.490 ~ 31 0
111 M 33 GiG 01 33 50.904 +30 39 35.79 6.17 6.27 5.72     ~ 5247 1
112 Cl Pal 1 GlC 03 33 20.04 +79 34 51.8   17.2       ~ 206 1
113 C 0658-204 OpC 07 00 29 -20 34.0           ~ 44 0
114 NGC 6705 OpC 18 51 05 -06 16.2   6.32 5.8     ~ 365 0

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2021.02.24-22:01:14

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