2000A&AS..141...65C


Query : 2000A&AS..141...65C

2000A&AS..141...65C - Astron. Astrophys., Suppl. Ser., 141, 65-77 (2000/January-1)

A representative sample of Be stars. II. K band spectroscopy.

CLARK J.S. and STEELE I.A.

Abstract (from CDS):

We present K band (2.05µm-2.22µm) spectra of 66 isolated Be stars of spectral types O9-B9 and luminosity classes III, IV & V. We find that objects with HeI features either in emission or absorption are B3 or earlier. Objects with Mgii emission but no HeI are B2 to B4, while objects with Brγ emission but no evidence of HeI or MgII are B5 or later. NaI emission in the spectra of 4 objects appears to indicate that regions of the circumstellar envelopes of these stars must be shielded from direct stellar radiation. Systematic trends in the line strength and profile of Brγ are seen from early to late spectral types which can be understood in terms of differences in the disc temperature and density. 30 per-cent of the stars do not currently show evidence for line emission. Compared to the emission line stars these objects have a significantly lower mean rotational velocity and a distribution of spectral types that is significantly earlier. This can be explained either as the original misidentification of these objects as Be stars (i.e. they never had line emission), or as evidence that stars with lower rotational velocities may be more prone to changes between the Be and B phases.

Abstract Copyright:

Journal keyword(s): stars: emission-line, Be - infrared: stars

Simbad objects: 66

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Number of rows : 66
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 * omi Cas Be* 00 44 43.5186650 +48 17 03.713573 3.91 4.44 4.50 4.45 4.50 B5IIIe 271 0
2 * phi And Be* 01 09 30.12562 +47 14 30.4594 3.84 4.18 4.25 4.22 4.27 B5IIIe 230 0
3 HD 13669 Be* 02 15 02.6066047548 +55 47 35.600142989 7.84 8.25 7.90     B3IV-V 58 0
4 HD 13867 Be* 02 16 35.9999386488 +49 49 11.528657128 7.24 7.72 7.71     B5IIIe 37 0
5 HD 13831 Pu* 02 16 39.2179548198 +56 44 16.087084527 7.56 8.32 8.26     O9.5I 70 1
6 BD+56 473 Be* 02 16 57.7098574713 +57 07 48.729414915 8.68 9.31 8.0712   7.6517 B1III/Ve 81 1
7 HD 13890 Be* 02 17 08.2153965522 +56 46 11.109127658 8.06 8.64 8.6370     B2.0III 64 0
8 BD+56 484 Be* 02 17 44.6581425870 +56 54 00.014746295 9.24 9.88 9.6420   8.1537 B1.0III 62 0
9 BD+56 493 Be* 02 18 18.3540235114 +56 51 02.233686342 9.15 9.95 8.7847   8.4218 B1IV/Ve 54 0
10 BD+56 511 Be* 02 18 47.9371416476 +57 04 02.195498037 8.97 9.49 8.2215   7.6884 B0-1Ve 59 0
11 BD+56 573 Be* 02 22 06.4418170919 +57 05 25.018967417 9.47 10.06 9.66     B2III-IVe 60 0
12 HD 14605 Be* 02 23 35.4362137928 +56 34 27.956486233 8.86 9.61 9.34     B0.5Vpe 68 0
13 HD 18552 Be* 03 00 11.8861321435 +38 07 54.200034089 5.67 6.05 6.11     B7IVe 84 0
14 HD 237056 Be* 03 02 37.8856076119 +57 36 46.061672724 10.739 9.38 8.90     B0.5:V:pe 56 0
15 HD 237060 Be* 03 04 30.5394240291 +59 26 46.693054671 9.34 9.47 9.20     B9V 20 0
16 * psi Per Be* 03 36 29.3798227 +48 11 33.478941 3.60 4.17 4.23     B5Ve 398 0
17 * 13 Tau Be* 03 42 18.9478060134 +19 42 00.925169042 5.41 5.68 5.69     B7Ve 94 0
18 HD 23552 Be* 03 48 18.0744583437 +50 44 12.355029498 5.88 6.20 6.14     B8V 83 1
19 * c Per Be* 04 08 39.6921578 +47 42 45.042937 3.45 4.00 4.03 3.91 3.93 B3Ve 369 0
20 BD-13 834 * 04 12 17.4169757865 -12 55 41.095777748   10.44 9.11     M0 7 0
21 BD+47 985 * 04 23 30.2943575676 +48 00 05.853122750   10.19 9.80     ~ 2 0
22 HD 27846 Be* 04 25 50.0073883372 +46 14 01.899055823 7.95 8.36 8.09     B1.5V 32 0
23 * 228 Eri Be* 04 29 06.9257908165 -13 02 54.131950447 4.45 5.23 5.41 5.46 5.63 B2(V)ne 270 0
24 * 56 Eri Be* 04 44 05.3208488091 -08 30 12.847764696 4.97 5.75 5.81 5.72 5.74 B2(V)nne 175 0
25 HD 276738 Be* 04 45 51.3270159664 +43 59 39.825874541 9.68 9.93 9.70     B5 18 0
26 HD 33604 Be* 05 13 13.3338065394 +40 11 36.705209308 6.68 7.36 7.38     B2V:pe 63 0
27 * psi01 Ori Be* 05 24 44.8269466961 +01 50 47.202396831 3.83 4.76 4.96 5.04 5.26 B1Vn 328 0
28 HD 244894 Be* 05 34 36.6240167454 +27 35 33.597483076 9.70 10.43 10.13     B1III-IVpe 21 0
29 * ome Ori Be* 05 39 11.1463172 +04 07 17.279475 3.73 4.48 4.59 4.57 4.67 B3Ve 392 1
30 HD 37657 Be* 05 42 19.8662288848 +43 03 34.523203698 6.66 7.25 7.25     B3Vne 66 0
31 HD 246878 Be* 05 44 27.72401 +27 13 47.6595 8.95 9.45 9.37     B1.5IVe 28 1
32 HD 39557 Be* 05 53 27.1390741607 +00 46 45.183248409   9.48 9.07     B9IV/V 26 0
33 HD 250289 Be* 06 01 05.8696336836 +23 20 20.382877037 7.74 8.71 8.23     B2III:e 57 0
34 HD 47054 Be* 06 36 35.3296957645 -05 12 40.100498706 5.05 5.44 5.52     B8IVe 94 0
35 HD 50209 Be* 06 52 10.3593906025 -00 17 43.926299287 8.05 8.37 8.36     B9Ve 49 1
36 HD 161103 Be* 17 44 45.7657852846 -27 13 44.482410725 8.44 9.23 9.13 9.12   B0.5III/IVe 74 0
37 HD 164741 bC* 18 03 44.0813974495 -25 18 45.078073821 8.74 9.48 9.19 9.57   B2Ib/II 42 0
38 HD 168797 Be* 18 21 28.4010410086 +05 26 08.558219035 5.47 6.09 6.13     B2Vne 118 0
39 HD 170682 Be* 18 31 24.2110158218 -19 09 31.030302145 8.06 8.20 7.95     B5II/III 50 0
40 HD 171406 Be* 18 33 23.0386910785 +30 53 31.603010622 5.96 6.429 6.534     B4Ve 63 0
41 HD 171757 Be* 18 37 40.0906763400 -27 59 08.174227719 8.25 8.95 9.0     B2nne 31 0
42 HD 172158 Be* 18 39 30.2348654980 -21 57 56.000403542 7.86 8.06 7.95     B8II 30 0
43 HD 172252 Be* 18 39 39.8462869964 -11 52 43.042290123 9.68 10.09 9.42     B0V:e 49 0
44 HD 173371 Be* 18 44 55.9136185597 -00 22 24.365786048 6.56 6.852 6.882     B9III 48 0
45 HD 177015 Be* 19 03 33.1277542695 -20 07 42.923335953 7.32 7.78 7.80     B3/5Vn 34 0
46 HD 179343 Be* 19 12 03.2772493 +02 37 21.323563 6.84 7.03 6.92     B7/8(e)_sh 59 0
47 * bet02 Cyg Be* 19 30 45.3960872028 +27 57 54.973848075 4.69 5.01 5.11     B8Ve 159 0
48 HD 350559 Be* 19 46 57.6849306751 +18 14 55.952942777   10.86 10.55     B6III/Ve 17 0
49 HD 333226 Be* 20 00 33.3661637379 +30 22 53.281360272 10.18 10.60 10.26     B0 28 0
50 HD 333452 Be* 20 03 11.0157777241 +28 42 20.437411816 10.40 10.28 9.49     B0 25 0
51 HD 339483 Be* 20 04 00.7467551855 +26 16 16.756715162 9.26 9.50 8.98     B3 27 0
52 V* V372 Sge bC* 20 09 39.5944456896 +21 04 43.633520175   8.26 8.34     B0.5III-IV 33 0
53 HD 228438 Be* 20 13 50.2844684701 +36 37 22.553494623   8.699 8.37     B0.5III 32 0
54 HD 228658 Be* 20 16 08.5548284327 +37 33 23.055587815 10.09 10.43 10.24     B2II: 30 0
55 HD 193009 Be* 20 16 48.1819754079 +32 22 47.394267082 6.41 7.25 7.16     B1V:nnpe 69 0
56 HD 195554 ** 20 29 27.1137626903 +56 04 05.459718358   5.846 5.912     B8.5V 88 2
57 HD 196712 Be* 20 39 13.2508908715 -02 24 46.715852037 5.70 6.124 6.220     B7Ve 53 0
58 HD 203356 Be* 21 19 44.9425066595 +53 57 05.368699617 8.200 8.340 8.080     B9 17 0
59 HD 205551 Be* 21 34 27.4626995668 +51 41 54.475588554 5.73 6.140 6.163     B7IIIe 58 0
60 HD 205618 Be* 21 35 44.4767156575 +29 44 43.890956088 7.25 8.13 8.16     B2Vne 39 0
61 HD 239758 Be* 21 44 34.0129852666 +59 03 25.738769424 9.23 9.68 9.43     B2III:nn 45 0
62 HD 207232 Be* 21 46 02.8279985973 +50 40 26.939767137   6.960 7.022     B9 28 0
63 * 25 Peg Be* 22 07 50.3036328703 +21 42 10.530347500 5.27 5.68 5.78     B7Vne 111 0
64 HD 211835 Be* 22 19 00.2399423904 +45 48 08.535444735 7.68 8.38 8.40     B3:Ve 46 0
65 * eps PsA Be* 22 40 39.3446800341 -27 02 36.967874856 3.69 4.071 4.177     B7III 143 0
66 HD 216851 Be* 22 55 47.0641811564 +43 33 33.442335354 7.55 8.02 7.97     B3V:n 44 0

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2021.09.28-17:57:19

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