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

goto Full paper

goto View the references in ADS

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 - 2026 		#notes
1 * alf Eri Be* 01 37 42.84548 -57 14 12.3101 -0.36 0.30 0.46 0.49 0.60 B6Vpe 495 1
2 * psi Per Be* 03 36 29.3797327450 +48 11 33.484405927 3.60 4.17 4.23     B5Ve 431 0
3 * c Per Be* 04 08 39.6935695869 +47 42 45.038007366 3.45 4.00 4.03 3.91 3.93 B3Ve 394 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 316 1
5 HD 35165 Be* 05 21 16.8603281544 -34 20 42.173559132 5.24 5.90 6.09 6.12 6.26 B3IVe 79 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: 412 0
7 * psi01 Ori Be* 05 24 44.8273848312 +01 50 47.201915688 3.83 4.76 4.96 5.04 5.26 B1Vn 372 0
8 * alf Col Be* 05 39 38.9410319 -34 04 26.794991 2.10 2.53 2.65 2.65 2.74 B9Ve 251 0
9 HD 41335 Be* 06 04 13.5003372120 -06 42 32.225392980 4.31 5.14 5.21 5.13 5.09 B1V 314 0
10 * tet Col * 06 07 31.6328242248 -37 15 10.509229800   4.888 4.994     B7III 48 0
11 * bet Mon A Be* 06 28 49.0704018024 -07 01 59.013827328 3.87 4.50 4.60     B4Veshell 253 0
12 * 10 CMa Be* 06 44 28.4671043496 -31 04 13.892357820 4.18 5.08 5.17 5.15 5.17 B2V 150 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 298 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) 205 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 240 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 373 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 164 0
18 * ups02 Pup Be* 07 18 38.1853955232 -36 44 33.854932104 4.28 4.95 5.11 5.17 5.38 B3Vne 127 1
19 HD 58343 Be* 07 24 40.1873324160 -16 12 05.302248804 4.52 5.15 5.19 5.05 5.06 B2Vne 222 0
20 * bet CMi Be* 07 27 09.0417373 +08 17 21.536745 2.52 2.80 2.89 2.90 2.96 B8Ve 400 0
21 * z Pup Be* 07 33 51.0415389912 -36 20 18.212736408 4.67 5.37 5.44 5.33 5.32 B2Vne 135 0
22 * omi Pup Be* 07 48 05.1686329933 -25 56 13.810593657 3.42 4.43 4.49 4.37 4.37 B1IVe 228 0
23 HD 68423 Be* 08 08 24.6399639336 -63 48 02.954982780   6.248 6.314     B6V 53 0
24 * r Pup Be* 08 13 29.5172754003 -35 53 58.265647773 3.68 4.66 4.77 4.68 4.77 B1V 199 0
25 HD 71510 Be* 08 25 31.3249894224 -51 43 38.688733380   5.01 5.17     B3IV 82 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) 152 0
27 * E Car Be* 09 05 38.3753516880 -70 32 18.594082500 3.75 4.500 4.652     B3III 107 0
28 * I Hya Be* 09 41 17.0067101149 -23 35 29.451517089 4.07 4.65 4.76 4.75 4.84 B5V 182 0
29 * ome Car Be* 10 13 44.2205948661 -70 02 16.463210640 2.92 3.25 3.33 3.29 3.32 B7III 129 0
30 * J Vel Be* 10 20 54.7957129824 -56 02 35.655748188 3.80 4.38 4.51 6.02   B5II 112 0
31 * p Car Be* 10 32 01.4650915230 -61 41 07.195030368 2.46 3.18 3.27 3.22 3.28 B4Vne 243 0
32 HD 92938 Be* 10 42 14.1192723749 -64 27 59.133997516 4.10 4.68 4.82     B3V 131 0
33 HD 93563 Be* 10 46 57.4734035534 -56 45 25.890897908 4.82 5.15 5.23     B5III 81 0
34 * j Cen Be* 11 49 41.0673344112 -63 47 18.500667000 3.58 4.160 4.308     B3V 125 0
35 * bet Hya a2* 11 52 54.52149 -33 54 29.2672 3.85 4.18 4.28 4.27 4.35 kB8hB8HeA0VSi 110 0
36 HD 105382 Be* 12 08 05.2222663992 -50 39 40.575451536 3.65 4.32 4.47 4.53 4.70 B5V 186 0
37 * del Cen Be* 12 08 21.4976373 -50 43 20.738614 1.51 2.39 2.52 2.48 2.62 B2Vne 320 0
38 * zet Crv Be* 12 20 33.6419830656 -22 12 57.241705320 4.73 5.11 5.21     B8V 86 0
39 * 39 Cru Be* 12 41 56.5691823528 -59 41 08.954444508 4.55 4.91 4.94     B5III 109 0
40 HD 110432 HXB 12 42 50.2663572384 -63 03 31.052981412 4.79 5.58 5.31     B0.5IVpe 334 0
41 * lam Cru Be* 12 54 39.1827302030 -59 08 48.129223088 3.86 4.451 4.602     B3Vne 150 1
42 * mu. Cen Be* 13 49 36.9886872492 -42 28 25.440271450 2.37 3.27 3.43 3.41 3.50 B2Vnpe 453 0
43 V* V716 Cen EB* 14 13 39.8236757256 -54 37 32.261966328   6.13 6.09     B5V 75 0
44 HD 124367 Be* 14 14 57.1383087504 -57 05 10.049405532 4.36 4.99 5.07     B4Vne 153 0
45 * eps Aps Be* 14 22 23.1931601289 -80 06 32.238438742 4.4 4.935 5.052     B3V 81 0
46 * eta Cen Be* 14 35 30.4241610 -42 09 28.170782 1.30 2.12 2.31 2.41 2.59 B2Ve 361 1
47 * tet Cir Be* 14 56 43.9850523987 -62 46 51.675365388 4.34 5.11 5.11 4.87 4.79 B2III 120 0
48 * mu. Lup Be* 15 18 32.02296 -47 52 30.9957 3.82         B8Ve 112 0
49 * d Lup Be* 15 35 53.24806 -44 57 30.1982 3.68     6.70   B3V 129 0
50 HD 142184 Be* 15 53 55.8637866220 -23 58 41.143370530 4.77 5.352 5.402     B2V 261 1
51 * del Sco SB* 16 00 20.00528 -22 37 18.1431 1.30 2.20 2.32 2.36 2.49 B0.3IV 776 0
52 * chi Oph Be* 16 27 01.4355697915 -18 27 22.499961252 3.95 4.71 4.43 3.97 3.73 B2Vne 624 0
53 * iot Ara Be* 17 23 16.0762402440 -47 28 05.505681720 4.32 5.14 5.25 5.12 5.20 B1V 157 0
54 * alf Ara Be* 17 31 50.4915282 -49 52 34.122041 2.09 2.78 2.95 3.05 3.29 B2Vne 269 0
55 HD 167128 Be* 18 17 07.5324253562 -56 01 24.057583523 4.62 5.30 5.36 5.32 5.36 B3IIIe 175 0
56 * eps Cap Be* 21 37 04.8311169408 -19 27 57.640399810 3.69 4.35 4.55 4.60 4.74 B3V 266 0
57 * eta PsA Be* 22 00 50.22537 -28 27 13.4639 4.96         B8III_sh+B8.5IV 106 0
58 * omi Aqr Be* 22 03 18.8440617830 -02 09 19.313835540 4.22 4.64 4.69 4.70 4.74 B5V 279 0
59 * 31 Peg Be* 22 21 31.0751048 +12 12 18.662815 4.08 4.89 4.99 5.06 5.20 B3III 227 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 436 0
61 * eps PsA Be* 22 40 39.3482564136 -27 02 37.015051704 3.69 4.071 4.177     B7III 163 0
62 * bet Psc Be* 23 03 52.6132153632 +03 49 12.164302217 3.90 4.40 4.52 4.54 4.67 B6Ve 259 0
63 * psi02 Aqr Be* 23 17 54.2137206 -09 10 57.067524 3.72 4.26 4.40 4.47 4.60 B5V 157 0
64 * bet Scl PM* 23 32 58.2607029954 -37 49 05.825575113 3.92 4.28 4.37 4.37 4.44 B9.5IIIpHgMnSi 194 0
65 * eps Tuc Be* 23 59 54.9771397256 -65 34 37.677425716 4.12 4.38 4.47 4.45 4.49 B8V 145 0

To bookmark this query, right click on this link: simbad:objects in 2017ApJ...842...48A and select 'bookmark this link' or equivalent in the popup menu