2001A&A...371..932H


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.25CET08:20:00

2001A&A...371..932H - Astronomy and Astrophysics, volume 371, 932-942 (2001/6-1)

Hα emission line spectroscopy in NGC 330. On the hybrid model for global oscillations in Be star circumstellar disks.

HUMMEL W., GAESSLER W., MUSCHIELOK B., SCHINK H., NICKLAS H., CONTI G., MATTAINI E., KELLER S., MANTEL K.-H., APPENZELLER I., RUPPRECHT G., SEIFERT W., STAHL O. and TARANTIK K.

Abstract (from CDS):

We perform an observational test on global oscillations in Be star circumstellar disks in the metal deficient environment of the SMC. According to the hybrid model of disk oscillations early-type Be stars require an optically thin line force to establish a density wave. The low metallicity in the SMC should therefore diminish or prevent the formation of disk oscillations in early-type Be stars. We present short wavelength range spectra around Hα of 48 Be stars in the young open cluster NGC 330 in the SMC. We find that the fraction of early-type Be stars in NGC 330 which host a global disk oscillation does not differ from the known fraction of Galactic field Be stars. This observational result is in contradiction to the theoretical prediction. We discuss several interpretations and propose a further observational test.

Abstract Copyright:

Journal keyword(s): line: formation, profiles - stars: circumstellar matter, emission-line, Be

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 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9559 1
2 Cl* NGC 330 G 68 Be* 00 55 48.7643096038 -72 27 12.854217250 16.62 17.24 17.30   17.37 B5IV 4 0
3 Cl* NGC 330 G 59 Be* 00 55 52.2662354146 -72 26 03.878768139 16.19 17.07 17.07   17.07 B2IV 7 0
4 Cl* NGC 330 G 111 * 00 55 55.9 -72 25 20     18.824     ~ 2 0
5 [MA93] 893 Be* 00 55 59.9020560474 -72 26 21.423667200 14.54 15.45 15.51   15.51 B3III 8 0
6 Cl* NGC 330 G 109 Be* 00 56 01.510 -72 25 25.78   18.66 18.76     B9III 4 0
7 Cl* NGC 330 ELS 123 * 00 56 03.70 -72 27 12.8   15.57 15.79   15.945 O9.5V 17 0
8 Cl* NGC 330 G 78 * 00 56 06.21 -72 28 19.6   17.10 17.24   17.571 ~ 5 0
9 Cl* NGC 330 ARP 46 Em* 00 56 06.64 -72 27 36.0   14.36 14.47   14.213 B1/B2II/IIIe 18 0
10 OGLE SMC-SC7 206160 Be* 00 56 07.5114522993 -72 27 43.860100242 15.79 16.65 16.69   16.50 B2III-IV 10 0
11 Cl* NGC 330 G 96 * 00 56 09.02 -72 27 23.0   17.65 17.64   17.918 ~ 3 0
12 Cl* NGC 330 ARP 2 Al* 00 56 09.4223317799 -72 28 09.470405437 15.07 15.23 14.28   13.13 Mepec 25 0
13 OGLE SMC-SC7 206133 Em* 00 56 10.3073225192 -72 27 53.320134171   17.21 17.32   17.384 ~ 3 0
14 2MASS J00561176-7228426 Be* 00 56 11.77 -72 28 42.7 15.29 16.16 16.20   16.20 B2IV 5 0
15 Cl* NGC 330 ARP 44 Be* 00 56 12.1318089637 -72 27 17.074890625 14.24 15.15 15.21   15.18 B2III 15 0
16 Cl* NGC 330 G 108 * 00 56 13.4 -72 28 53     18.578     ~ 2 0
17 Cl* NGC 330 ARP 6 Be* 00 56 14.25 -72 28 30.0 14.94 15.81 15.90   15.82 B3III 17 0
18 LIN 303 Be* 00 56 14.902 -72 28 47.79 14.41 15.28 15.35   15.29 B3II-III 17 0
19 Cl* NGC 330 KWBBE 233 * 00 56 17.1 -72 27 58     16.36     ~ 2 0
20 Cl* NGC 330 KWBBE 459 * 00 56 17.2 -72 27 31     16.10     ~ 2 0
21 Cl* NGC 330 ARP 7 Pu* 00 56 17.7291203114 -72 28 32.538359437   15.54 15.60   15.554 ~ 11 0
22 OGLE SMC-SC7 205947 Be* 00 56 18.13 -72 27 13.4 14.58 15.45 15.51   15.49 B2IV 14 0
23 Cl* NGC 330 G 77 * 00 56 18.93 -72 28 21.9   17.04 17.15   17.879 ~ 4 0
24 OGLE SMC-SC7 205944 Em* 00 56 19.8832461219 -72 27 36.084326328   15.20 15.29   15.328 ~ 8 0
25 2MASS J00562033-7228067 Be* 00 56 20.33 -72 28 06.7 14.75 15.77 15.65   16.16 B2IV 5 0
26 NGC 330 Cl* 00 56 20.59 -72 27 12.5 9.37 9.76 9.55   8.89 ~ 369 0
27 OGLE SMC-SC7 205982 Em* 00 56 22.3020 -72 28 15.990   16.609 16.646   16.534 ~ 5 0
28 2MASS J00562252-7225470 Be* 00 56 22.52 -72 25 47.1   16.73 16.76     B2IV 6 0
29 2MASS J00562307-7227359 Em* 00 56 23.07 -72 27 35.9   16.26 16.41   16.557 ~ 4 0
30 Cl* NGC 330 G 64 * 00 56 23.3 -72 26 53     17.10     ~ 4 0
31 OGLE SMC-SC7 206113 Pu* 00 56 24.38 -72 27 56.9   16.70 16.61   16.863 ~ 3 0
32 OGLE SMC-SC7 206236 Be* 00 56 24.6337357698 -72 26 24.903174290 16.00 16.81 16.84   16.78 B2IV 7 0
33 Cl* NGC 330 ARP 27 Be* 00 56 25.4613893470 -72 27 07.168250688 14.38 15.32 15.36   15.34 B2III 21 0
34 OGLE SMC-SC7 206186 Pu* 00 56 25.82 -72 27 30.7   17.13 17.23   17.157 ~ 4 0
35 Cl* NGC 330 ROB B41 Be* 00 56 26.60 -72 28 09.2 14.62 15.45 15.66   15.50 B2III 12 0
36 OGLE SMC-SC7 206167 Em* 00 56 27.17 -72 27 40.8   17.35 17.41   17.408 ~ 5 0
37 Cl* NGC 330 HSG F1 Be* 00 56 28.1858750786 -72 30 37.016957283 15.78 16.81 16.82   16.68 B1V 4 0
38 LIN 305 PN 00 56 30.750 -72 27 02.00   17.14 17.32   18.023 ~ 37 0
39 Cl* NGC 330 ROB B5 Be* 00 56 31.1605212317 -72 27 58.056392097 14.53 15.36 15.45   15.34 B3III 20 0
40 Cl* NGC 330 ROB B6 Be* 00 56 32.2788574326 -72 27 50.302445860   15.44 17.45   15.32 B1III 18 0
41 Cl* NGC 330 KWBBE 821 * 00 56 32.5 -72 26 05     16.72     ~ 3 0
42 Cl* NGC 330 ROB B9 Be* 00 56 33.1242973570 -72 27 05.123296593 15.22 15.97 16.05   16.07 B3III 13 0
43 Cl* NGC 330 G 115 Be* 00 56 33.898 -72 28 43.92   18.08 18.15     B5IV 4 0
44 Cl* NGC 330 KWBBE 799 * 00 56 38.5 -72 28 26     16.92     ~ 3 0
45 Cl* NGC 330 KWBBE 798 * 00 56 38.9 -72 29 48     17.30     ~ 3 0
46 Cl* NGC 330 SW 95 Be* 00 56 44.3421135811 -72 29 06.512776080 13.49 14.68 14.76   14.92 O6.5-7.5IIIe 15 0
47 Cl* NGC 330 KWBBE 754 Be* 00 56 54.0133537669 -72 28 50.360817901 16.05 16.96 16.96   16.86 B1IV 5 0
48 * phi Per Be* 01 43 39.6379209 +50 41 19.432832 3.10 4.02 4.06 3.90 3.88 B1.5V:e-shell 535 0
49 * 28 Tau Be* 03 49 11.2175463444 +24 08 12.172181348 4.73 5.01 5.09   5.08 B8Vne 436 0
50 * zet Tau Be* 05 37 38.6854231 +21 08 33.158804 2.22 2.84 3.03 3.06 3.15 B1IVe_shell 698 0
51 HD 41335 Be* 06 04 13.5022124890 -06 42 32.225555101 4.31 5.14 5.21 5.13 5.09 B3/5Vnne 275 0
52 * bet Mon A Be* 06 28 49.0688084600 -07 01 59.016107399 3.87 4.50 4.60     B4Veshell 240 0
53 * bet Mon ** 06 28 49.06971 -07 01 59.0101 2.85 3.59 3.74 3.75 3.91 B4Ve+B2Vn(e)+B3V:nne 220 0
54 * 66 Oph Be* 18 00 15.7982457 +04 22 07.016285 3.77 4.58 4.60 4.47 4.49 B2Ve 327 0
55 Cl* NGC 330 G 114 * ~ ~           ~ 1 0
56 Cl* NGC 330 G 113 * ~ ~           ~ 1 0
57 Cl* NGC 330 G 112 * ~ ~           ~ 1 0
58 Cl* NGC 330 G 110 * ~ ~           ~ 1 0
59 Cl* NGC 330 A 30 * ~ ~           ~ 1 0
60 Cl* NGC 330 G 104 * ~ ~           ~ 1 0
61 Cl* NGC 330 G 99 * ~ ~           ~ 1 0
62 Cl* NGC 330 ROB A20 * ~ ~     14.62     ~ 2 0
63 Cl* NGC 330 G 98 * ~ ~           ~ 1 0
64 Cl* NGC 330 G 84 * ~ ~           ~ 1 0
65 Cl* NGC 330 G 71 * ~ ~           ~ 1 0
66 Cl* NGC 330 G 56 * ~ ~           ~ 1 0
67 Cl* NGC 330 KBD 2-79 * ~ ~           ~ 1 0
68 Cl* NGC 330 KBD 4-31 * ~ ~           ~ 1 0
69 Cl* NGC 330 G 51 * ~ ~           ~ 1 0
70 Cl* NGC 330 KBD 3-16 * ~ ~           ~ 1 0

    Equat.    Gal    SGal    Ecl

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2020.10.25-08:20:00

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