2017ApJ...842...48A

Query : 2017ApJ...842...48A

2017ApJ...842...48A - Astrophys. J., 842, 48-48 (2017/June-2)

Evidence for different disk mass distributions between early- and late-type Be stars in the BeSOS survey.

ARCOS C., JONES C.E., SIGUT T.A.A., KANAAN S. and CURE M.

Abstract (from CDS):

The circumstellar disk density distributions for a sample of 63 Be southern stars from the BeSOS survey were found by modeling their Hα emission line profiles. These disk densities were used to compute disk masses and disk angular momenta for the sample. Average values for the disk mass are 3.4 x 10–9 and 9.5 x 10–10 M* for early (B0-B3) and late (B4-B9) spectral types, respectively. We also find that the range of disk angular momentum relative to the star is (150-200)J*/M* and (100-150)J*/M*, again for early- and late-type Be stars, respectively. The distributions of the disk mass and disk angular momentum are different between early- and late-type Be stars at a 1% level of significance. Finally, we construct the disk mass distribution for the BeSOS sample as a function of spectral type and compare it to the predictions of stellar evolutionary models with rapid rotation. The observed disk masses are typically larger than the theoretical predictions, although the observed spread in disk masses is typically large.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

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

Simbad objects: 65

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Number of rows : 65
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 * alf Eri Be* 01 37 42.84548 -57 14 12.3101 -0.36 0.30 0.46 0.49 0.60 B6Vpe 473 1
2 * psi Per Be* 03 36 29.3797327450 +48 11 33.484405927 3.60 4.17 4.23     B5Ve 415 0
3 * c Per Be* 04 08 39.6935695869 +47 42 45.038007366 3.45 4.00 4.03 3.91 3.93 B3Ve 382 0
4 * lam Eri Be* 05 09 08.7840557047 -08 45 14.701594805 3.17 4.07 4.27 4.35 4.55 B2III(e)p 305 1
5 HD 35165 Be* 05 21 16.8603281544 -34 20 42.173559132 5.24 5.90 6.09 6.12 6.26 B3IVe 75 0
6 * eta Ori bC* 05 24 28.61672 -02 23 49.7311 2.25 3.18 3.35 3.44 3.65 B1V+B2: 398 0
7 * psi01 Ori Be* 05 24 44.8273848312 +01 50 47.201915688 3.83 4.76 4.96 5.04 5.26 B1Vn 353 0
8 * alf Col Be* 05 39 38.9410319 -34 04 26.794991 2.10 2.53 2.65 2.65 2.74 B9Ve 240 0
9 HD 41335 Be* 06 04 13.5003372120 -06 42 32.225392980 4.31 5.14 5.21 5.13 5.09 B1V 299 0
10 * tet Col * 06 07 31.6328242248 -37 15 10.509229800   4.888 4.994     B7III 44 0
11 * bet Mon A Be* 06 28 49.0704018024 -07 01 59.013827328 3.87 4.50 4.60     B4Veshell 247 0
12 * 10 CMa Be* 06 44 28.4671043496 -31 04 13.892357820 4.18 5.08 5.17 5.15 5.17 B2V 145 0
13 * kap CMa Be* 06 49 50.4591124672 -32 30 30.523820933 2.73 3.68 3.89 3.91 4.05 B1.5Ve 286 0
14 * 19 Mon bC* 07 02 54.7772531316 -04 14 21.235613879 3.87 4.80 5.00 5.06 5.25 B2Vn(e) 197 0
15 * 27 CMa Be* 07 14 15.2117197408 -26 21 09.028965559 3.76 4.45 4.65 4.64 4.73 B4Ve_sh 231 0
16 * ome CMa Be* 07 14 48.6540133346 -26 46 21.603204215 2.90 3.64 3.82 3.80 3.90 B2.5Ve 353 0
17 * ups01 Pup Be* 07 18 18.3935775563 -36 44 02.228526718 3.78 4.57 4.67 4.57 4.62 B2V+B3IVne 153 0
18 * ups02 Pup Be* 07 18 38.1853955232 -36 44 33.854932104 4.28 4.95 5.11 5.17 5.38 B3Vne 118 1
19 HD 58343 Be* 07 24 40.1873324160 -16 12 05.302248804 4.52 5.15 5.19 5.05 5.06 B2Vne 215 0
20 * bet CMi Be* 07 27 09.0417373 +08 17 21.536745 2.52 2.80 2.89 2.90 2.96 B8Ve 383 0
21 * z Pup Be* 07 33 51.0415389912 -36 20 18.212736408 4.67 5.37 5.44 5.33 5.32 B2Vne 128 0
22 * omi Pup Be* 07 48 05.1686329933 -25 56 13.810593657 3.42 4.43 4.49 4.37 4.37 B1IVe 217 0
23 HD 68423 Be* 08 08 24.6399639336 -63 48 02.954982780   6.248 6.314     B6V 49 0
24 * r Pup Be* 08 13 29.5172754003 -35 53 58.265647773 3.68 4.66 4.77 4.68 4.77 B1V 188 0
25 HD 71510 Be* 08 25 31.3249894224 -51 43 38.688733380   5.01 5.17     B3IV 77 0
26 * f Car Be* 08 46 42.5482603396 -56 46 11.194513753 3.58 4.31 4.49 4.59 4.78 B3V(n) 144 0
27 * E Car Be* 09 05 38.3753516880 -70 32 18.594082500 3.75 4.500 4.652     B3III 100 0
28 * I Hya Be* 09 41 17.0067101149 -23 35 29.451517089 4.07 4.65 4.76 4.75 4.84 B5V 173 0
29 * ome Car Be* 10 13 44.2205948661 -70 02 16.463210640 2.92 3.25 3.33 3.29 3.32 B7III 122 0
30 * J Vel Be* 10 20 54.7957129824 -56 02 35.655748188 3.80 4.38 4.51 6.02   B5II 107 0
31 * p Car Be* 10 32 01.4650915230 -61 41 07.195030368 2.46 3.18 3.27 3.22 3.28 B4Vne 232 0
32 HD 92938 Be* 10 42 14.1192723749 -64 27 59.133997516 4.10 4.68 4.82     B3V 121 0
33 HD 93563 Be* 10 46 57.4734035534 -56 45 25.890897908 4.82 5.15 5.23     B5III 72 0
34 * j Cen Be* 11 49 41.0673344112 -63 47 18.500667000 3.58 4.160 4.308     B3V 119 0
35 * bet Hya a2* 11 52 54.52149 -33 54 29.2672 3.85 4.18 4.28 4.27 4.35 kB8hB8HeA0VSi 101 0
36 HD 105382 Be* 12 08 05.2222663992 -50 39 40.575451536 3.65 4.32 4.47 4.53 4.70 B5V 172 0
37 * del Cen Be* 12 08 21.4976373 -50 43 20.738614 1.51 2.39 2.52 2.48 2.62 B2Vne 309 0
38 * zet Crv Be* 12 20 33.6419830656 -22 12 57.241705320 4.73 5.11 5.21     B8V 82 0
39 * 39 Cru Be* 12 41 56.5691823528 -59 41 08.954444508 4.55 4.91 4.94     B5III 102 0
40 HD 110432 HXB 12 42 50.2663572384 -63 03 31.052981412 4.79 5.58 5.31     B0.5IVpe 310 0
41 * lam Cru Be* 12 54 39.1827302030 -59 08 48.129223088 3.86 4.451 4.602     B3Vne 141 1
42 * mu. Cen Be* 13 49 36.9886872492 -42 28 25.440271450 2.37 3.27 3.43 3.41 3.50 B2Vnpe 434 0
43 V* V716 Cen EB* 14 13 39.8236757256 -54 37 32.261966328   6.13 6.09     B5V 71 0
44 HD 124367 Be* 14 14 57.1383087504 -57 05 10.049405532 4.36 4.99 5.07     B4Vne 144 0
45 * eps Aps Be* 14 22 23.1931601289 -80 06 32.238438742 4.4 4.935 5.052     B3V 74 0
46 * eta Cen Be* 14 35 30.4241610 -42 09 28.170782 1.30 2.12 2.31 2.41 2.59 B2Ve 343 1
47 * tet Cir Be* 14 56 43.9850523987 -62 46 51.675365388 4.34 5.11 5.11 4.87 4.79 B2III 112 0
48 * mu. Lup Be* 15 18 32.02296 -47 52 30.9957 3.82         B8Ve 105 0
49 * d Lup Be* 15 35 53.24806 -44 57 30.1982 3.68     6.70   B3V 122 0
50 HD 142184 Be* 15 53 55.8637866220 -23 58 41.143370530 4.77 5.352 5.402     B2V 232 0
51 * del Sco SB* 16 00 20.00528 -22 37 18.1431 1.30 2.20 2.32 2.36 2.49 B0.3IV 740 0
52 * chi Oph Be* 16 27 01.4355697915 -18 27 22.499961252 3.95 4.71 4.43 3.97 3.73 B2Vne 598 0
53 * iot Ara Be* 17 23 16.0762402440 -47 28 05.505681720 4.32 5.14 5.25 5.12 5.20 B1V 150 0
54 * alf Ara Be* 17 31 50.4915282 -49 52 34.122041 2.09 2.78 2.95 3.05 3.29 B2Vne 255 0
55 HD 167128 Be* 18 17 07.5324253562 -56 01 24.057583523 4.62 5.30 5.36 5.32 5.36 B2V 152 0
56 * eps Cap Be* 21 37 04.8311169408 -19 27 57.640399810 3.69 4.35 4.55 4.60 4.74 B3V 255 0
57 * eta PsA Be* 22 00 50.22537 -28 27 13.4639 4.96         B8III_sh+B8.5IV 100 0
58 * omi Aqr Be* 22 03 18.8440617830 -02 09 19.313835540 4.22 4.64 4.69 4.70 4.74 B5V 268 0
59 * 31 Peg Be* 22 21 31.0751048 +12 12 18.662815 4.08 4.89 4.99 5.06 5.20 B3III 220 0
60 * pi. Aqr Be* 22 25 16.6230017410 +01 22 38.634449478 3.64 4.60 4.64 4.48 4.48 B1III-IVe 415 0
61 * eps PsA Be* 22 40 39.3482564136 -27 02 37.015051704 3.69 4.071 4.177     B7III 156 0
62 * bet Psc Be* 23 03 52.6132153632 +03 49 12.164302217 3.90 4.40 4.52 4.54 4.67 B6Ve 252 0
63 * psi02 Aqr Be* 23 17 54.2137206 -09 10 57.067524 3.72 4.26 4.40 4.47 4.60 B5V 147 0
64 * bet Scl Er* 23 32 58.2607029954 -37 49 05.825575113 3.92 4.28 4.37 4.37 4.44 B9.5IIIpHgMnSi 186 0
65 * eps Tuc Be* 23 59 54.9771397256 -65 34 37.677425716 4.12 4.38 4.47 4.45 4.49 B8V 138 0

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