2004AJ....127.1513S


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.21CEST18:24:33

2004AJ....127.1513S - Astron. J., 127, 1513-1530 (2004/March-0)

The integrated spectrum of M67 and the spectroscopic age of M32.

SCHIAVON R.P., CALDWELL N. and ROSE J.A.

Abstract (from CDS):

We construct an integrated spectrum of the intermediate-age, solar-metallicity Galactic cluster M67, from individual spectroscopic observations of bona fide cluster members. The spectrum so obtained is used as a template to test our stellar population synthesis models, in an age and metallicity regime where such models remain largely untested. As a result, we demonstrate that our models predict a spectroscopic age of 3.5±0.5 Gyr for M67, which is the same age we obtain from fitting isochrones to the color-magnitude diagram of the cluster. Full consistency is reached when using either Hβ, Hγ, or Hδ as the age indicator. We also check if the models, when applied to the cluster integrated spectrum, predict elemental abundances in agreement with the known detailed abundance pattern of the cluster. The models also pass the latter test, by predicting the abundances of iron, magnesium, carbon, and nitrogen in agreement with detailed abundance analyses of cluster stars to within 0.1 dex. Encouraged by the high degree of consistency of our models, we apply them to the study of the integrated spectrum of the central 3" of the compact elliptical galaxy M32. The resulting luminosity-weighted age of the galaxy ranges between 2 and 3.5 Gyr, depending on the age indicator adopted. According to our models, the center of M32 seems to have a supersolar iron abundance, ranging between [Fe/H]~+0.1 and +0.3, depending on the spectral index adopted. The light element magnesium seems to be underabundant in the center of M32 relative to iron by about ∼0.1-0.2 dex, whereas the data are consistent with nearly solar carbon and nitrogen abundances relative to iron. We find that single-age, single-metallicity stellar population models with solar-scaled abundance patterns cannot fit all the Balmer and metal lines in the integrated spectrum of M32. In particular, there is a systematic trend in the sense that bluer absorption lines indicate a younger age and a higher metallicity. This slight inconsistency can be due either to (unaccounted for) abundance ratio effects on blue iron and Balmer line indices or to a spread of the ages of the stellar populations in M32. Current stellar population models cannot break this degeneracy at the level of accuracy required to address this problem.

Abstract Copyright:

Journal keyword(s): Galaxies: Clusters: General - Galaxies: Individual: Messier Number: M32 - Galaxies: Stellar Content - Galaxy: Open Clusters and Associations: Individual: Messier Number: M67 - Stars: Evolution

VizieR on-line data: <Available at CDS (J/AJ/127/1513): table1.dat table2.dat table3.dat table6.dat>

Simbad objects: 111

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Number of rows : 111

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 M 32 IG 00 42 41.825 +40 51 54.61 9.51 9.03 8.08     ~ 1969 2
2 HD 37216 PM* 05 39 52.3472927511 +52 53 50.953328568   8.60 7.83     G5V 54 0
3 * psi04 Aur PM* 06 43 04.9730565210 +44 31 28.031377307 8.33 6.50 5.02     K5III 95 0
4 HD 49178 PM* 06 48 53.8179652461 +37 30 18.436463504   8.76 8.07     G0 41 0
5 * ups Gem PM* 07 35 55.3506173748 +26 53 44.711452380 7.54 5.60 4.06 2.82 1.91 M0III 191 0
6 HD 61606 BY* 07 39 59.3285412183 -03 35 51.026043193 8.89 8.136 7.169 6.626 6.15 K3V 157 0
7 * g Gem SB* 07 46 07.4501431556 +18 30 36.021692006 8.09 6.33 4.87 3.72 2.89 K4III 164 0
8 HD 69582 PM* 08 17 29.6048958342 -03 06 27.253493120   8.28 7.56     G5/6V 21 0
9 HD 69830 PM* 08 18 23.9469692487 -12 37 55.810202572   6.74 5.95     G8:V 452 2
10 * 31 Lyn LP* 08 22 50.1099966 +43 11 17.272427 7.71 5.80 4.25 3.05 2.17 K4+III 144 0
11 BD+12 1920 RB? 08 50 18.2737761035 +11 55 21.207324374   10.994 9.909   8.890 ~ 28 0
12 Cl* NGC 2682 SAND 676 RB? 08 50 21.0991128622 +12 21 11.691712858   11.83 10.464     ~ 19 0
13 Cl* NGC 2682 SAND 598 V* 08 50 34.3879297487 +11 39 56.724622466 13.288 13.23 12.594   11.926 G0IV 18 0
14 NGC 2682 4 RG* 08 50 36.1345840131 +11 43 18.095602992 14.180 13.72 12.689   11.746 G8IV 20 0
15 NGC 2682 6 * 08 50 40.7920544882 +11 47 46.234778549 13.334 13.355 12.839   12.165 F7V 14 0
16 NGC 2682 8 * 08 50 41.5622498440 +11 44 30.093255983 13.329 13.12 12.331   11.502 G4V 13 0
17 Cl* NGC 2682 SAND 745 SB* 08 50 46.0915011135 +11 43 08.298895338 13.686 13.71 13.077   12.435 F9V 13 0
18 NGC 2682 16 * 08 50 47.6623433181 +11 44 51.457232953 13.159 13.18 12.671   12.073 F7IV 22 0
19 NGC 2682 20 V* 08 50 49.9468814917 +11 49 12.773279778 14.186 13.78 12.889   11.998 G8V 40 0
20 Cl* NGC 2682 SAND 720 Ro* 08 50 50.7336505868 +11 35 02.762688854   13.53 13.019   12.248 ~ 9 0
21 NGC 2682 23 * 08 50 51.717 +11 48 10.23 13.360 13.35 12.638   12.244 F7V 11 0
22 NGC 2682 22 SB* 08 50 51.8289082313 +11 56 55.908491167 13.367 13.271 12.743   12.143 ~ 26 0
23 Cl* NGC 2682 SAND 733 * 08 50 53.0765169289 +11 40 02.270365953 14.303 14.26 13.633 13.568 13.033 G0V 10 0
24 Cl* NGC 2682 SAND 738 * 08 50 53.4165691837 +11 40 43.491100427 14.386 14.34 13.700   12.989 F9V 9 0
25 NGC 2682 28 * 08 50 54.3946926920 +11 56 29.079511505 13.385 13.32 12.761     F8IV 24 0
26 NGC 2682 30 * 08 50 55.6921714248 +11 52 14.688264367   12.64 11.954   11.369 F9IV 31 0
27 NGC 2682 37 RB? 08 50 58.1578655200 +11 52 22.371464914 14.489 13.8 12.806   11.881 K0IV 53 0
28 Cl* NGC 2682 SAND 816 SB* 08 50 59.2371180411 +11 56 36.866306643 13.845 13.80 13.213   12.545 ~ 14 0
29 NGC 2682 45 SB* 08 50 59.7602442404 +11 39 22.274668995 14.983 14.07 12.895   11.746 K4V 14 0
30 NGC 2682 46 Ro* 08 51 00.1707001809 +11 54 32.147054160 13.991 13.541 12.764   11.889 G5IV 39 0
31 NGC 2682 49 Ro* 08 51 00.8240455090 +11 39 37.626199034 13.645 12.56 12.596 12.58 11.843 G8V 14 0
32 NGC 2682 48 RB? 08 51 01.0584119388 +11 50 10.911974817 13.781 13.47 12.699   11.895 G2IV 27 0
33 Cl* NGC 2682 SAND 1077 SB* 08 51 07.2253135547 +11 53 01.950781358 13.382 13.24 12.595   11.752 F9V 31 0
34 Cl* NGC 2682 SAND 939 Ro* 08 51 07.4210382681 +11 36 53.554491234 13.951 13.96 13.439   12.727 F8V 12 0
35 NGC 2682 70 * 08 51 07.8120120521 +11 48 09.324142959   11.96 11.522   11.036 F4IV 19 0
36 NGC 2682 81 SB* 08 51 11.7795102754 +11 45 22.122658355   9.96 10.024     B8V 86 0
37 NGC 2682 84 RG* 08 51 12.6931812504 +11 52 42.448865345   11.629 10.393 10.234 9.500 K1III 98 0
38 NGC 2682 88 SB* 08 51 13.6083170256 +11 50 38.118730200 13.152 12.97 12.180 11.931 11.545 G1IV 20 0
39 NGC 2682 90 SB* 08 51 14.3527704821 +11 45 00.552999082   11.43 10.819   10.544 ~ 40 0
40 NGC 2682 95 SB* 08 51 15.4466081466 +11 47 31.470706228 13.211 13.17 12.680 12.355 12.044 F2 35 0
41 NGC 2682 98 * 08 51 15.7593061799 +11 52 58.823715112 13.507 13.4 12.817   12.146 F9IV 20 0
42 Cl* NGC 2682 ES I-49 SB* 08 51 16.2831696788 +11 44 32.939964061 14.166 14.12 13.419   12.784 F5V 20 0
43 NGC 2682 104 RG* 08 51 17.0401829547 +11 50 46.503449364   12.114 11.001 10.863 10.12 K0III/IV 60 0
44 NGC 2682 110 SB* 08 51 17.5965780342 +11 39 36.061798979 14.185 14.13 13.590   12.841 G1V 14 0
45 Cl* NGC 2682 SAND 986 Al* 08 51 17.9840273340 +11 45 54.335697597 13.363 13.28 12.733   12.04 ~ 69 0
46 NGC 2682 OpC 08 51 18 +11 48.0           ~ 1984 0
47 Cl* NGC 2682 SAND 999 RS* 08 51 18.6868793423 +11 47 02.718532166 13.632 13.38 12.569 12.143 11.69 ~ 71 0
48 NGC 2682 124 BS* 08 51 19.9071059100 +11 47 00.440184381 12.576 12.59 12.117 11.848 11.564 F5IV 76 0
49 NGC 2682 128 * 08 51 20.3300303333 +11 45 52.481234197 13.782 13.72 13.244   12.445 ~ 51 0
50 NGC 2682 130 V* 08 51 20.5734892159 +11 46 16.413587383 13.346 13.34 12.950   12.30 G: 53 0
51 NGC 2682 134 V* 08 51 21.2238994560 +11 45 52.754566390 12.903 12.83 12.315 11.904 11.553 F5 56 0
52 NGC 2682 136 SB* 08 51 21.7525357665 +11 52 37.871016235   11.92 11.235   10.595 G3III-IV 66 0
53 NGC 2682 140 Ro* 08 51 22.0511495782 +11 46 41.010432677 13.811 13.797 13.189 12.834 12.496 ~ 53 0
54 NGC 2682 141 RG* 08 51 22.8037504415 +11 48 01.780643224   11.570 10.346 10.180 9.40 ~ 115 0
55 Cl* NGC 2682 ES IV-6 SB* 08 51 22.9623074458 +11 49 13.163527159 13.700 13.72 13.275 12.978 12.667 F7V 24 0
56 NGC 2682 143 SB* 08 51 23.7748135706 +11 49 49.341257027   12.39 11.420   10.61 G4III 73 0
57 NGC 2682 144 SB* 08 51 23.8037837055 +11 47 16.088731083 13.914 13.62 12.835   11.981 G4IV 21 0
58 Cl* NGC 2682 ES I-245 mul 08 51 24.102720 +11 47 10.00428 14.294 12.93 12.22 13.00 12.781 ~ 12 0
59 NGC 2682 149 SB* 08 51 25.3724324592 +11 47 34.261931787 13.204 13.12 12.535 12.191 11.839 F9IV 30 0
60 NGC 2682 148 * 08 51 25.5221529278 +11 52 38.833863869   13.88 13.284   12.564 F9IV 15 0
61 NGC 2682 151 RG* 08 51 26.1833341306 +11 53 51.984909452   11.58 10.391     K1III 81 0
62 NGC 2682 156 SB* 08 51 27.0113270349 +11 51 52.589157089   11.1 10.940   10.862 A2V 62 0
63 Cl* NGC 2682 SAND 1036 WU* 08 51 28.1469824237 +11 49 27.498107329 13.262 13.27 12.809   12.184 F3 64 0
64 NGC 2682 163 Ro* 08 51 28.8030392366 +11 51 59.980207468   13.36 12.658   11.916 G1IV 26 0
65 NGC 2682 164 RG* 08 51 28.9911734176 +11 50 33.129974313   11.675 10.441 10.250 9.46 K1III 109 0
66 NGC 2682 166 * 08 51 29.3543895938 +11 45 27.649101311 14.413 13.85 12.910   11.962 K0IV 49 0
67 NGC 2682 165 SB* 08 51 29.4081423622 +11 54 13.962870646   13.47 12.845   12.177 F9V 15 0
68 NGC 2682 173 RG* 08 51 30.4541028409 +11 48 58.327634271 13.834 13.12 11.731 11.594 11.08 ~ 28 0
69 NGC 2682 181 * 08 51 32.4022460532 +11 48 01.228485951 13.931 13.60 12.830 12.360 11.895 F5IV 19 0
70 NGC 2682 182 * 08 51 32.4465225192 +11 47 52.381433575 13.335 13.27 12.738 12.294 11.920 G0V 20 0
71 NGC 2682 185 * 08 51 32.5947464395 +11 48 52.103353760   11.46 11.48   10.80 A0V 47 0
72 NGC 2682 189 * 08 51 34.2793927240 +11 49 43.866743043 13.415 13.44 12.862   12.244 F8IV 28 0
73 NGC 2682 192 V* 08 51 35.4047689388 +11 57 56.557123197 13.879 13.583 12.817     G2IV 26 0
74 NGC 2682 193 RG* 08 51 35.7787389120 +11 53 34.750825194 13.904 13.22 12.267   11.228 K0III 75 0
75 NGC 2682 195 SB* 08 51 36.0099994276 +11 46 33.605594679 13.539 13.4 12.682 12.328 11.915 G1V 42 0
76 Cl* NGC 2682 SAND 1318 SB* 08 51 36.3848623443 +11 56 50.841886744 14.610 14.62 14.070     ~ 12 0
77 NGC 2682 206 * 08 51 37.959 +11 58 49.17 14.654 13.91 12.925     ~ 11 0
78 NGC 2682 218 RG* 08 51 42.3411374693 +11 50 07.681109985   12.71 11.48     K1III 45 0
79 NGC 2682 217 RG* 08 51 42.3635293595 +11 51 23.076710195   12.80 11.23     K1III 58 0
80 NGC 2682 219 SB* 08 51 42.4520877385 +11 49 51.967000429 13.158 13.11 12.606   11.817 F7V 21 0
81 NGC 2682 221 * 08 51 42.6776232235 +11 46 36.600442958 12.908 12.95 12.460   11.646 F8 18 0
82 NGC 2682 224 RG* 08 51 43.5488551130 +11 44 26.483079596   11.894 10.686 10.460 9.660 K1III 88 0
83 NGC 2682 223 RG* 08 51 43.8875881034 +11 56 42.531716904   11.658 10.476   9.500 K1III 72 0
84 NGC 2682 226 * 08 51 44.0075673304 +11 46 24.536468173 13.749 13.549 12.790   11.928 G0 48 0
85 NGC 2682 227 RB? 08 51 44.7392406102 +11 46 46.049130453 14.402 13.898 13.000   11.994 K0IV 41 0
86 Cl* NGC 2682 SAND 1190 SB* 08 51 46.0789692848 +11 36 18.352984625   12.02 11.155     ~ 13 0
87 NGC 2682 235 * 08 51 46.4157502125 +11 46 26.718019998 13.989 13.95 13.463   12.694 F8V 15 0
88 NGC 2682 236 Ro* 08 51 48.3254117556 +11 51 11.959156521 13.271 13.17 12.557   11.741 G1IV 28 0
89 NGC 2682 237 * 08 51 48.8384728421 +11 56 51.248326946 14.453 13.82 12.982     K0IV 22 0
90 Cl* NGC 2682 SAND 1192 * 08 51 50.6117131226 +11 36 33.851721926 13.788 13.86 13.520   12.801 ~ 8 0
91 Cl* NGC 2682 MMJ 6228 * 08 51 52.57 +12 04 23.1   13.310 12.688     ~ 2 0
92 NGC 2682 261 * 08 51 56.0040036087 +11 51 26.532747396   10.91 10.589   10.317 A3 18 0
93 NGC 2682 262 RB? 08 51 56.1169030056 +11 50 14.843184447 14.595 13.9 12.976   11.906 K0IV 26 0
94 NGC 2682 265 * 08 51 58.5182444850 +11 46 52.982887281 13.110 13.05 12.517   11.707 F9V 13 0
95 NGC 2682 266 RG* 08 51 59.5227988109 +11 55 04.837738790   11.65 10.463   9.490 ~ 67 0
96 NGC 2682 267 * 08 51 59.6372716507 +11 52 57.679949251 13.454 13.37 12.878   12.115 ~ 13 0
97 Cl* NGC 2682 SAND 1446 * 08 52 09.6149958522 +11 46 46.240531019 14.701 14.66 14.169   13.318 ~ 13 0
98 BD+12 1930 SB* 08 52 10.7434436388 +11 44 05.870422307   10.81 10.700     A1V 51 0
99 Cl* NGC 2682 ES II-152 RG* 08 52 10.9716159318 +11 31 49.233867433   12.051 10.911   9.790 ~ 39 0
100 NGC 2682 281 V* 08 52 11.3482081962 +11 45 37.977382218 14.016 13.734 12.951   12.019 G5IV 26 0
101 Cl* NGC 2682 SAND 1440 * 08 52 13.4289208192 +11 46 01.293290322 13.907 13.97 13.546   12.843 ~ 12 0
102 Cl* NGC 2682 SAND 1586 SB* 08 52 16.6514033036 +11 42 30.000298582 14.008 14.06 13.598     ~ 10 0
103 NGC 2682 286 RG* 08 52 18.5744306643 +11 44 26.376261817   11.541 10.382   9.430 K0III 53 0
104 * 56 Leo LP? 10 56 01.4689991 +06 11 07.327524 8.45 7.24 5.78 3.53 1.44 M5.5III: 159 0
105 * lam Crt SB* 11 23 21.8772519050 -18 46 48.090929720   5.51 5.09     F5III 100 0
106 HD 106156 PM* 12 12 57.5321593334 +10 02 15.777335940   8.71   7.4   G8V 81 0
107 HD 126511 PM* 14 24 48.9418346124 +41 16 30.392124985       7.9   G5 38 0
108 V* KU Lib BY* 14 40 31.1063338186 -16 12 33.452993531 8.247 7.977 7.240 6.837 6.47 G8Vk: 77 0
109 HD 136834 PM* 15 22 42.5466042227 +01 25 07.053125779   9.30   8.738   K3IV-V 124 0
110 HD 158614 SB* 17 30 23.79699 -01 03 46.4882 6.34 6.03 5.31 5.52   G9-IV-VHdel1 278 0
111 * 70 Oph BY* 18 05 27.28518 +02 30 00.3558 5.40 4.89 4.03 3.38 2.92 K0-V 601 1

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2019.10.21-18:24:33

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