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 - 2023
#notes
1 * omi Cas Be* 00 44 43.5186650 +48 17 03.713573 3.91 4.44 4.50 4.45 4.50 B5IIIe 275 0
2 * phi And Be* 01 09 30.12562 +47 14 30.4594 3.84 4.18 4.25 4.22 4.27 B5IIIe 232 0
3 HD 13669 Be* 02 15 02.6064837624 +55 47 35.598050808 7.84 8.25 7.90     B3IV-V 59 0
4 HD 13867 Be* 02 16 35.9953510392 +49 49 11.545139316 7.24 7.72 7.71     B5IIIe 38 0
5 HD 13831 Pu* 02 16 39.2180538048 +56 44 16.085742396 7.56 8.32 8.26     O9.5I 76 1
6 BD+56 473 Be* 02 16 57.7103678448 +57 07 48.730568772 8.68 9.31 8.0712   7.6517 B1III/Ve 84 1
7 HD 13890 Be* 02 17 08.2163055288 +56 46 11.096889888 8.06 8.64 8.6370     B2.0III 67 0
8 BD+56 484 Be* 02 17 44.6582386752 +56 54 00.011357028 9.24 9.88 9.6420   8.1537 B1.0III 66 0
9 BD+56 493 Be* 02 18 18.3546298920 +56 51 02.232343764 9.15 9.95 8.7847   8.4218 B1IV/Ve 58 0
10 BD+56 511 Be* 02 18 47.9372995272 +57 04 02.189871156 8.97 9.49 8.2215   7.6884 B0-1Ve 62 0
11 BD+56 573 Be* 02 22 06.4431258264 +57 05 25.031082120 9.47 10.06 9.66     B2III-IVe 63 0
12 HD 14605 Be* 02 23 35.4361162152 +56 34 27.956112204 8.86 9.61 9.34     B0.5Vpe 72 0
13 HD 18552 Be* 03 00 11.8861086336 +38 07 54.197462964 5.67 6.05 6.11     B7IVe 85 0
14 HD 237056 Be* 03 02 37.8861049368 +57 36 46.065664296 10.739 9.38 8.90     B0.5:V:pe 59 0
15 HD 237060 Be* 03 04 30.5395753104 +59 26 46.691819088 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 405 0
17 * 13 Tau Be* 03 42 18.9476782488 +19 42 00.918475956 5.41 5.68 5.69     B7Ve 96 0
18 HD 23552 Be* 03 48 18.0746021928 +50 44 12.357606372 5.88 6.20 6.14     B8V 84 1
19 * c Per Be* 04 08 39.6921578 +47 42 45.042937 3.45 4.00 4.03 3.91 3.93 B3Ve 374 0
20 BD-13 834 * 04 12 17.4168235272 -12 55 41.096173008   10.44 9.11     M0 8 0
21 BD+47 985 Pu* 04 23 30.2944154616 +48 00 05.852688696   10.19 9.80     ~ 2 0
22 HD 27846 Be* 04 25 50.0074882440 +46 14 01.898598516 7.95 8.36 8.09     B1.5V 37 0
23 * 228 Eri Be* 04 29 06.9254098152 -13 02 54.127769208 4.45 5.23 5.41 5.46 5.63 B2(V)ne 272 0
24 * 56 Eri Be* 04 44 05.3207274312 -08 30 12.852684720 4.97 5.75 5.81 5.72 5.74 B2(V)nne 176 0
25 HD 276738 Be* 04 45 51.3276189744 +43 59 39.820295148 9.68 9.93 9.70     B5 18 0
26 HD 33604 Be* 05 13 13.3340536488 +40 11 36.703278348 6.68 7.36 7.38     B2V:pe 64 0
27 * psi01 Ori Be* 05 24 44.8273848312 +01 50 47.201915688 3.83 4.76 4.96 5.04 5.26 B1Vn 343 0
28 HD 244894 Be* 05 34 36.6241433808 +27 35 33.595888056 9.70 10.43 10.13     B1III-IVpe 23 0
29 * ome Ori Be* 05 39 11.1463172 +04 07 17.279475 3.73 4.48 4.59 4.57 4.67 B3Ve 399 1
30 HD 37657 Be* 05 42 19.8666978768 +43 03 34.517994084 6.66 7.25 7.25     B3Vne 69 0
31 HD 246878 Be* 05 44 27.72401 +27 13 47.6595 8.95 9.45 9.37     B1.5IVe 31 1
32 HD 39557 Be* 05 53 27.1389770880 +00 46 45.186195216   9.48 9.07     B9IV/V 27 0
33 HD 250289 Be* 06 01 05.8696266144 +23 20 20.383138500 7.74 8.71 8.23     B2III:e 61 0
34 HD 47054 Be* 06 36 35.3296522656 -05 12 40.103033112 5.05 5.44 5.52     B8IVe 95 0
35 HD 50209 Be* 06 52 10.3593170304 -00 17 43.927976508 8.05 8.37 8.36     B9Ve 51 1
36 HD 161103 Be* 17 44 45.7656635952 -27 13 44.478959340 8.44 9.23 9.13 9.12   B0.5III/IVe 80 0
37 HD 164741 bC* 18 03 44.0813322000 -25 18 45.077553432 8.74 9.48 9.19 9.57   B2Ib/II 46 0
38 HD 168797 Be* 18 21 28.4010720600 +05 26 08.560470876 5.47 6.09 6.13     B2Vne 120 0
39 HD 170682 Be* 18 31 24.2109018096 -19 09 31.025696112 8.06 8.20 7.95     B5II/III 53 0
40 HD 171406 Be* 18 33 23.0362685928 +30 53 31.594470396 5.96 6.429 6.534     B4Ve 64 0
41 HD 171757 Be* 18 37 40.0906560216 -27 59 08.171220516 8.25 8.95 9.0     B2nne 32 0
42 HD 172158 Be* 18 39 30.2353707696 -21 57 56.003094144 7.86 8.06 7.95     B8II 33 0
43 HD 172252 Be* 18 39 39.8461314720 -11 52 43.031021520 9.68 10.09 9.42     B0V:e 51 0
44 HD 173371 Be* 18 44 55.9135229664 -00 22 24.364000632 6.56 6.852 6.882     B9III 49 0
45 HD 177015 Be* 19 03 33.1280578320 -20 07 42.923787204 7.32 7.78 7.80     B3/5Vn 35 0
46 HD 179343 Be* 19 12 03.2772493 +02 37 21.323563 6.84 7.03 6.92     B7/8(e)_sh 60 0
47 * bet02 Cyg Be* 19 30 45.3961817904 +27 57 54.989118612 4.69 5.01 5.11     B8Ve 161 0
48 HD 350559 Be* 19 46 57.6848957376 +18 14 55.954598856   10.86 10.55     B6III/Ve 17 0
49 HD 333226 Be* 20 00 33.3660931536 +30 22 53.282906976 10.18 10.60 10.26     B0 30 0
50 HD 333452 Be* 20 03 11.0159551848 +28 42 20.439333648 10.40 10.28 9.49     B0 27 0
51 HD 339483 Be* 20 04 00.7465521792 +26 16 16.759608024 9.26 9.50 8.98     B3 30 0
52 V* V372 Sge bC* 20 09 39.5945322600 +21 04 43.634595144   8.26 8.34     B0.5III-IV 36 0
53 HD 228438 Be* 20 13 50.2840675536 +36 37 22.551943476   8.699 8.37     B0.5III 34 0
54 HD 228658 Be* 20 16 08.5548415536 +37 33 23.055878664 10.09 10.43 10.24     B2II: 34 0
55 HD 193009 Be* 20 16 48.1819799400 +32 22 47.398192248 6.41 7.25 7.16     B1V:nnpe 72 0
56 HD 195554 ** 20 29 27.1108477224 +56 04 05.490194052   5.846 5.912     B8.5V 89 2
57 HD 196712 Be* 20 39 13.2507860040 -02 24 46.709284860 5.70 6.124 6.220     B7Ve 54 0
58 HD 203356 Be* 21 19 44.9407030488 +53 57 05.385922920 8.200 8.340 8.080     B9 18 0
59 HD 205551 Be* 21 34 27.4633482288 +51 41 54.480749712 5.73 6.140 6.163     B7IIIe 59 0
60 HD 205618 Be* 21 35 44.4770094600 +29 44 43.892316780 7.25 8.13 8.16     B2Vne 41 0
61 HD 239758 Be* 21 44 34.0127758032 +59 03 25.740146700 9.23 9.68 9.43     B2III:nn 48 0
62 HD 207232 Be* 21 46 02.8278023904 +50 40 26.943635316   6.960 7.022     B9 29 0
63 * 25 Peg Be* 22 07 50.3038755192 +21 42 10.536282684 5.27 5.68 5.78     B7Vne 112 0
64 HD 211835 Be* 22 19 00.2400210672 +45 48 08.536691016 7.68 8.38 8.40     B3:Ve 47 0
65 * eps PsA Be* 22 40 39.3482564136 -27 02 37.015051704 3.69 4.071 4.177     B7III 148 0
66 HD 216851 Be* 22 55 47.0642243040 +43 33 33.443380440 7.55 8.02 7.97     B3V:n 50 0

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2023.01.27-14:38:52

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