2012AJ....144..158M

Query : 2012AJ....144..158M

2012AJ....144..158M - Astron. J., 144, 158 (2012/December-0)

Physical properties of the B and Be star populations of h and χ Persei.

MARSH BOYER A.N., McSWAIN M.V., ARAGONA C. and OU-YANG B.

Abstract (from CDS):

We present a study of the B and Be star populations of the double cluster h and χ Persei. Blue optical spectroscopy is used to first measure projected rotational velocity, V sin i, effective surface temperature, Teff, and surface gravity, log g, for B-type sample stars, while available Strömgren photometry is used to calculate Teff and log g for the Be stars showing emission. In our sample of 104 objects for which we measured these stellar parameters, 28 are known or proposed Be stars. Of these Be stars, 22 show evidence of emission at the times of our observations, and furthermore, we find evidence in our data and the literature for at least 8 transient Be stars in the clusters. We find that the Be stars are not rotating near their critical velocity, contrary to the results of studies of similar open clusters. We compare the results of our analysis with other previous studies and find that the cluster members are more evolved than found by Huang & Gies but still retain much of their initial rotational angular momentum.

Abstract Copyright: ∼

Journal keyword(s): open clusters and associations: individual (NGC 869, NGC 884) - stars: emission-line, Be

VizieR on-line data: <Available at CDS (J/AJ/144/158): table2.dat table3.dat>

Simbad objects: 107

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Number of rows : 107
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 BD+56 473 Be* 02 16 57.7103678448 +57 07 48.730568772 8.68 9.31 8.0712   7.6517 B1III/Ve 85 1
2 BD+56 476 * 02 17 00.2382493536 +57 05 58.652526696   10.42 10.26     ~ 10 0
3 NGC 869 87 * 02 17 04.0059579792 +56 54 37.479717684   10.77 10.5864   10.1779 ~ 5 0
4 BD+56 477 bC* 02 17 04.4992085976 +56 58 07.193831628   10.21 9.3310   8.9269 B 18 0
5 NGC 869 133 * 02 17 13.5430910808 +56 58 09.281830224   11.89 11.6165   11.3129 ~ 8 0
6 HD 13900 Be* 02 17 15.5690940480 +56 53 52.859380812 8.67 9.33 8.3548   8.0065 B1.0III 72 0
7 NGC 869 138 * 02 17 15.8378265024 +57 19 18.128655660   12.185 11.8342   11.4139 ~ 5 0
8 HD 13910 * 02 17 28.0471425072 +57 21 56.334995100   8.23 7.9129   7.5939 B9V 20 0
9 NGC 869 250 * 02 17 37.0444568952 +57 03 00.196935984   11.41 11.3422   11.0013 B4.0V 9 0
10 BD+56 482 * 02 17 39.1324149096 +57 11 57.604381800 9.06 9.68 9.4140     B1.0III 39 0
11 NGC 869 289 * 02 17 43.3147959984 +57 06 10.693005084   12.089 11.7454   11.3982 B2.1V 9 0
12 BD+56 484 Be* 02 17 44.6582386752 +56 54 00.011357028 9.24 9.88 9.6420   8.1537 B1.0III 67 0
13 LS V +56 14 * 02 17 46.8821911176 +56 57 01.718454060   11.275 11.049     OB- 12 0
14 HD 13969 * 02 17 49.8454024416 +57 05 25.578297996 8.56 9.15 8.0183 8.56 7.5970 B0.7III 71 0
15 NGC 869 350 * 02 17 51.5590872552 +57 10 43.145466384   12.137 11.7130   11.2194 B2.5V 10 0
16 NGC 869 380 * 02 17 57.0083949408 +57 07 41.654151336   11.97 11.2670   10.9350 B2.1V 9 0
17 BD+56 489 Be* 02 18 15.0972427152 +57 10 16.037782500   10.22 10.219     B3e 20 0
18 BD+56 491 * 02 18 17.0700391752 +57 12 31.081145400   10.2 10.2480   9.1523 B1.3V 15 0
19 BD+56 493 Be* 02 18 18.3546298920 +56 51 02.232343764 9.15 9.95 8.7847   8.4218 B1IV/Ve 59 0
20 NGC 869 551 * 02 18 19.4818684296 +57 14 13.726487616   11.35 10.5590   9.7520 B1.4V 14 0
21 BD+56 494 * 02 18 20.6945605176 +56 53 13.733964060   10.15 9.6223   9.1579 OB- 18 0
22 HD 14052 Pu* 02 18 28.1569905024 +57 12 30.146357700 7.90 8.48 7.7866   7.3575 B1Ib 86 0
23 BD+56 501 bC* 02 18 29.8336293096 +57 09 03.164872428 8.98 9.631 9.4150     B0.5I 37 0
24 LS V +57 9 * 02 18 29.8973312592 +57 21 59.454531684   10.56 10.41     OB- 19 0
25 BD+56 502 Be* 02 18 32.7771648600 +57 12 39.684099204 9.02 9.58 8.3904   7.9740 B1.0V 57 0
26 NGC 869 731 * 02 18 34.1225800296 +57 13 50.274782508   11.171 10.7954   10.2816 B2.0V 13 0
27 BD+56 503 * 02 18 34.9871903832 +56 52 18.567393816   10.46 10.0710   9.6771 A: 12 0
28 NGC 869 769 * 02 18 38.7165685824 +57 02 00.682506456   10.94 10.9270   10.5872 B1.2III 13 0
29 NGC 869 768 * 02 18 40.3903297056 +57 24 27.406456524   10.80 10.6860   10.1555 ~ 12 0
30 NGC 869 789 * 02 18 42.2251248576 +57 16 50.087151336   12.115 11.701     ~ 7 0
31 BD+56 505 EB* 02 18 42.7728753816 +57 04 21.514973232   10.82 10.6020   9.6145 B0.5III 19 0
32 BD+56 510 * 02 18 47.7738182568 +57 08 06.743879736 9.10 9.63 8.3765   7.9703 B1.5III 54 0
33 BD+56 511 Be* 02 18 47.9372995272 +57 04 02.189871156 8.97 9.49 8.2215   7.6884 B0-1Ve 63 0
34 BD+56 509 Be* 02 18 48.3723516000 +57 14 24.925438248       10.01   B1e 17 0
35 BD+56 513 * 02 18 49.4817249504 +57 05 49.969791564 9.76 10.25 9.1590   8.5592 B0.9III 41 0
36 NGC 869 859 * 02 18 49.5437025648 +57 07 18.909925248 10.71 11.080 10.7850   10.3895 B2.0V 24 0
37 BD+56 515 Be* 02 18 53.8611376104 +57 08 22.236580968 9.33 9.87 8.5262   8.0645 B2.0V 41 0
38 NGC 869 OpC 02 18 57.8 +57 08 02           ~ 476 0
39 BD+56 520 bC* 02 19 00.2068359360 +57 08 44.320290036 9.71 10.20 10.0010     B1.5IV 28 0
40 NGC 869 1001 * 02 19 00.3838349136 +57 04 27.181236000   10.870 10.4850   9.9653 B0.9III 14 0
41 * 61 And s*b 02 19 04.4525174952 +57 08 07.795069656 6.63 7.00 6.5678   6.6876 B3Ia 206 0
42 BD+56 523 * 02 19 04.9811102952 +56 57 31.057209684   10.65 10.5140     B1.5III 16 0
43 BD+56 524 * 02 19 06.4292136984 +57 07 33.897068904 9.60 10.09 9.8200     B1.0V 68 0
44 NGC 869 1085 * 02 19 06.9682189560 +57 09 04.462023780 10.27 10.766 10.4700     B2.0III 26 0
45 BD+56 527 * 02 19 10.4480241480 +57 07 50.097888192 8.43 8.818 8.4770   7.229 B2.0I 43 0
46 BD+56 528 Pu* 02 19 10.6810880568 +57 01 29.855395740   9.99 9.8700   8.6622 B1Vn 21 0
47 BD+56 529 Be* 02 19 13.6735270416 +57 07 43.570965000 10.24 10.59 10.2290   8.6693 B1Ve 41 0
48 NGC 869 1181 * 02 19 15.1494676536 +57 08 12.593592168   13.05 12.6917   12.1583 B3.0V 16 0
49 NGC 869 1174 * 02 19 15.2206193976 +57 14 51.066453192   12.171 11.8195   11.3940 ~ 11 0
50 BD+56 534 Be* 02 19 26.5189897464 +57 04 42.137892840 9.55 10.02 9.5590 9.53   B3Ve 39 1
51 HD 14162 Be* 02 19 27.4668283440 +57 08 17.649813192 9.26 9.605 8.4634 9.42 7.8474 B0.5V 56 0
52 EM* GGA 156 Be* 02 19 28.8227174880 +57 07 04.543663836   11.564 11.003     B0-1Ve 21 0
53 NGC 869 1278 Be* 02 19 28.8928804896 +57 11 24.266861736     11.6848   11.1321 B0-1Ve 17 0
54 BD+56 538 * 02 19 40.0703466744 +57 05 31.171421508   10.0 9.9650     B0.7III 21 0
55 NGC 869 1387 * 02 19 41.5696351344 +56 50 54.763028376   11.102 10.9084   10.5875 ~ 9 0
56 BD+56 540 bC* 02 19 42.6656845656 +56 58 45.883182216   10.61 10.4370   10.1803 B0.6V 18 0
57 HD 14210 ** 02 19 56.1338931384 +57 19 05.147228568   8.48 8.25   7.3179 B9III 28 0
58 NGC 869 1516 EB* 02 20 02.9700015336 +57 11 18.680081064   11.21 10.9820   10.4386 B1.0V 17 0
59 NGC 869 1548 * 02 20 08.6563958952 +57 02 15.326747412   12.906 12.7060   12.1631 B6.6V 7 0
60 NAME NGC 869/884 OpC 02 20.5 +57 08           ~ 67 0
61 BD+56 548 Be* 02 20 39.0482294904 +57 18 42.699355092 9.2 9.8 9.811   11.4514 B1.5IIIe 49 0
62 NGC 884 1772 Be? 02 20 52.7850825960 +57 13 27.799076496   11.782 11.1483   10.5630 B2 14 0
63 NGC 884 1770 Pe* 02 20 52.9884649680 +57 20 21.316766460   11.988 11.643     ~ 7 0
64 NGC 884 1793 * 02 20 57.8914712328 +57 18 27.380442816   12.351 11.8294   11.2479 ~ 7 0
65 BD+56 552 * 02 21 09.0393764376 +57 21 34.307538408   11.13 10.8975   10.5029 ~ 13 0
66 HD 14357 bC* 02 21 10.4369424696 +56 51 56.340040320 8.31 8.83 8.4988 8.21 8.0630 B2.0I 76 0
67 BD+56 559 Be* 02 21 18.0751032000 +57 18 22.097122308   10.33 9.882     B1IIIe 41 0
68 EM* GGA 161 Be* 02 21 24.9235468080 +57 11 52.452949236   12.600 12.2582   11.6331 B3.3III 20 0
69 NGC 884 2014 * 02 21 30.1470965304 +57 12 27.849812832   12.102 11.7660   11.2906 B2.0V 11 0
70 LS V +56 34 * 02 21 34.1244773904 +56 54 47.442639924   10.89 10.6961   10.3780 B 18 0
71 BD+56 561 * 02 21 35.7180295776 +57 17 47.253667416   10.137 9.95     B: 13 0
72 NGC 884 2057 * 02 21 37.5739993872 +57 12 36.439096464   11.944 11.5840   11.1522 B2.1V 9 0
73 NGC 884 2085 Em* 02 21 42.9369067272 +57 05 30.612889284     11.2473   10.7916 B3 21 0
74 BD+56 563 Be* 02 21 43.3997996592 +57 07 32.801871180 9.12 9.77 8.4704   7.9688 B1IIIe 66 0
75 NGC 884 2086 V* 02 21 43.9788341976 +57 18 21.674258064   12.170 11.6625   11.1675 ~ 7 0
76 NGC 884 2094 Pu* 02 21 44.3977299264 +57 08 53.822480856 11.78 12.20 11.8740   11.5021 B2.5III 21 0
77 EM* GGA 162 Be* 02 21 44.4729653424 +57 10 52.271712660   12.147 11.706     B2Ve 23 0
78 NGC 884 2112 * 02 21 45.8984756304 +56 57 56.769711012   10.67 10.6207   10.3882 ~ 11 0
79 NGC 884 2119 * 02 21 47.3753515608 +57 03 51.146255484   11.59 11.2477   10.7552 B1.2V 15 0
80 HD 14422 Be* 02 21 50.8110975000 +57 23 11.644264104 8.86 9.50 9.2700     B1Ie 93 0
81 BD+56 566 Be* 02 21 52.9412765784 +57 09 58.947342372 10.613 10.26 10.1620     B1Ve 65 0
82 NGC 884 2185 V* 02 21 55.5656144184 +57 05 58.650880308 11.711 11.25 10.9157   10.5988 B2IV 32 0
83 NGC 884 2191 V* 02 21 56.9434530264 +57 12 20.288199276   12.110 11.664   11.152 B2.8V 13 0
84 LS V +57 16 Em* 02 21 57.3650485680 +57 20 21.777407988   11.287 10.783     OB- 16 0
85 NGC 884 2218 * 02 21 59.0626486296 +56 56 38.729398632   11.22 11.4101   11.0630 ~ 6 0
86 HD 14443 V* 02 22 00.5764087032 +57 08 41.872012908 7.85 8.39 7.6934 7.70 7.2734 BC2Ib 106 0
87 NGC 884 2232 EB* 02 22 00.8186090784 +57 07 31.992222324 11.500 11.36 11.0850     B3.0V 35 0
88 NGC 884 2255 * 02 22 03.9055865232 +57 09 13.843848744 11.233 10.97 10.7125   10.2625 B1.5V 24 0
89 EM* MWC 39 Em* 02 22 04.5660560856 +57 10 38.883120780 11.164 10.82 10.5910     B2Vn 51 0
90 BD+56 573 Be* 02 22 06.4431258264 +57 05 25.031082120 9.47 10.06 9.66     B2III-IVe 64 0
91 V* V621 Per EB* 02 22 09.7108878600 +57 07 02.305907292 9.14 9.68 9.4000   7.9369 B1.5I 75 0
92 NGC 884 2347 * 02 22 13.8853030464 +57 01 24.531721320   11.46 11.5420   11.1203 B1.6V 15 0
93 NGC 884 2336 * 02 22 13.9596934776 +57 19 20.885712852   12.051 11.5284   10.9672 ~ 13 0
94 HD 14476 Pu* 02 22 16.9579243824 +57 16 18.963026868 8.62 9.13 8.1914   7.6376 B1.5I 51 0
95 NGC 884 OpC 02 22 20.2 +57 08 56           ~ 486 0
96 BD+56 581 * 02 22 21.0632631744 +57 10 52.953727512   10.72 10.7120   9.8322 B1.5V 22 0
97 NGC 884 2468 * 02 22 33.2406322512 +57 02 29.683727304   10.91 10.76     A2 11 0
98 NGC 884 2520 V* 02 22 41.7782959152 +57 16 59.774572884   11.09 10.6280   9.1129 B0.8V 14 0
99 NGC 884 2540 * 02 22 43.5208780152 +57 06 21.512280708   11.28 10.98   10.8450 B1.7V 16 0
100 NGC 884 2555 * 02 22 46.7558866968 +57 10 23.598884136   11.890 11.492   11.046 B3.4V 9 0
101 EM* MWC 447 Be* 02 22 46.9733702856 +56 58 05.892098700 10.51 10.93 10.593     B0e 32 0
102 BD+56 592 * 02 22 56.7045591624 +57 00 48.211648092   9.951 9.740     ~ 18 0
103 NGC 884 2622 Em* 02 23 00.0616460808 +57 12 13.977285300   12.309 11.858   11.354 B1.6V 16 0
104 NGC 884 2716 * 02 23 16.3898968272 +57 08 08.774839500   12.12 11.564   11.118 B1.8V 11 0
105 NGC 884 2729 * 02 23 19.1375291784 +57 15 40.771606968   12.32 11.7016   11.1581 ~ 10 0
106 EM* GGA 166 Be* 02 23 28.1608468224 +57 23 25.626304176 11.43 11.81 11.190     B1.5Vne 17 0
107 BD+56 603 EB* 02 24 01.4919426816 +57 17 24.123528852   10.571 10.118 9.982   ~ 11 0

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