2001A&A...369...99H


Query : 2001A&A...369...99H

2001A&A...369...99H - Astronomy and Astrophysics, volume 369, 99-107 (2001/4-1)

A representative sample of Be stars. IV. Infrared photometry and the continuum excess.

HOWELLS L., STEELE I.A., PORTER J.M. and ETHERTON J.

Abstract (from CDS):

We present infra-red (JHK) photometry of 52 isolated Be stars of spectral types O9-B9 and luminosity classes III-V. We describe a new method of reduction, enabling separation of interstellar reddening and circumstellar excess. Using this technique we find that the disc emission makes a maximum contribution to the optical (B-V) colour of a few tenths of a magnitude. We find strong correlations between a range of emission lines (Hα, Brγ, Br11, and Br18) from the Be stars' discs, and the circumstellar continuum excesses. We also find that stellar rotation and disc excess are correlated.

Abstract Copyright:

Journal keyword(s): stars: emission-line, Be - circumstellar matter - stars: rotation - techniques: photometric - methods: data analysis

Simbad objects: 52

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Number of rows : 52
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 BD+56 473 Be* 02 16 57.7098574713 +57 07 48.729414915 8.68 9.31 8.0712   7.6517 B1III/Ve 81 1
6 HD 13890 Be* 02 17 08.2153965522 +56 46 11.109127658 8.06 8.64 8.6370     B2.0III 64 0
7 BD+56 484 Be* 02 17 44.6581425870 +56 54 00.014746295 9.24 9.88 9.6420   8.1537 B1.0III 62 0
8 BD+56 493 Be* 02 18 18.3540235114 +56 51 02.233686342 9.15 9.95 8.7847   8.4218 B1IV/Ve 54 0
9 BD+56 511 Be* 02 18 47.9371416476 +57 04 02.195498037 8.97 9.49 8.2215   7.6884 B0-1Ve 59 0
10 BD+56 573 Be* 02 22 06.4418170919 +57 05 25.018967417 9.47 10.06 9.66     B2III-IVe 60 0
11 HD 14605 Be* 02 23 35.4362137928 +56 34 27.956486233 8.86 9.61 9.34     B0.5Vpe 68 0
12 HD 18552 Be* 03 00 11.8861321435 +38 07 54.200034089 5.67 6.05 6.11     B7IVe 84 0
13 HD 237056 Be* 03 02 37.8856076119 +57 36 46.061672724 10.739 9.38 8.90     B0.5:V:pe 56 0
14 HD 237060 Be* 03 04 30.5394240291 +59 26 46.693054671 9.34 9.47 9.20     B9V 20 0
15 * psi Per Be* 03 36 29.3798227 +48 11 33.478941 3.60 4.17 4.23     B5Ve 398 0
16 HD 23552 Be* 03 48 18.0744583437 +50 44 12.355029498 5.88 6.20 6.14     B8V 83 1
17 * c Per Be* 04 08 39.6921578 +47 42 45.042937 3.45 4.00 4.03 3.91 3.93 B3Ve 369 0
18 HD 27846 Be* 04 25 50.0073883372 +46 14 01.899055823 7.95 8.36 8.09     B1.5V 32 0
19 HD 276738 Be* 04 45 51.3270159664 +43 59 39.825874541 9.68 9.93 9.70     B5 18 0
20 HD 33604 Be* 05 13 13.3338065394 +40 11 36.705209308 6.68 7.36 7.38     B2V:pe 63 0
21 HD 244894 Be* 05 34 36.6240167454 +27 35 33.597483076 9.70 10.43 10.13     B1III-IVpe 21 0
22 HD 37657 Be* 05 42 19.8662288848 +43 03 34.523203698 6.66 7.25 7.25     B3Vne 66 0
23 HD 246878 Be* 05 44 27.72401 +27 13 47.6595 8.95 9.45 9.37     B1.5IVe 28 1
24 HD 250289 Be* 06 01 05.8696336836 +23 20 20.382877037 7.74 8.71 8.23     B2III:e 57 0
25 HD 161103 Be* 17 44 45.7657852846 -27 13 44.482410725 8.44 9.23 9.13 9.12   B0.5III/IVe 74 0
26 HD 168797 Be* 18 21 28.4010410086 +05 26 08.558219035 5.47 6.09 6.13     B2Vne 118 0
27 HD 170682 Be* 18 31 24.2110158218 -19 09 31.030302145 8.06 8.20 7.95     B5II/III 49 0
28 HD 171406 Be* 18 33 23.0386910785 +30 53 31.603010622 5.96 6.429 6.534     B4Ve 63 0
29 HD 171757 Be* 18 37 40.0906763400 -27 59 08.174227719 8.25 8.95 9.0     B2nne 31 0
30 HD 172158 Be* 18 39 30.2348654980 -21 57 56.000403542 7.86 8.06 7.95     B8II 29 0
31 HD 172252 Be* 18 39 39.8462869964 -11 52 43.042290123 9.68 10.09 9.42     B0V:e 49 0
32 HD 173371 Be* 18 44 55.9136185597 -00 22 24.365786048 6.56 6.852 6.882     B9III 48 0
33 HD 179343 Be* 19 12 03.2772493 +02 37 21.323563 6.84 7.03 6.92     B7/8(e)_sh 59 0
34 * bet02 Cyg Be* 19 30 45.3960872028 +27 57 54.973848075 4.69 5.01 5.11     B8Ve 159 0
35 HD 350559 Be* 19 46 57.6849306751 +18 14 55.952942777   10.86 10.55     B6III/Ve 17 0
36 HD 187350 Be* 19 49 33.4538494190 -01 06 03.720175858 7.53 8.20 8.14     B1Vne 38 0
37 HD 333226 Be* 20 00 33.3661637379 +30 22 53.281360272 10.18 10.60 10.26     B0 28 0
38 HD 333452 Be* 20 03 11.0157777241 +28 42 20.437411816 10.40 10.28 9.49     B0 25 0
39 V* V372 Sge bC* 20 09 39.5944456896 +21 04 43.633520175   8.26 8.34     B0.5III-IV 33 0
40 HD 228438 Be* 20 13 50.2844684701 +36 37 22.553494623   8.699 8.37     B0.5III 32 0
41 HD 228658 Be* 20 16 08.5548284327 +37 33 23.055587815 10.09 10.43 10.24     B2II: 30 0
42 HD 193009 Be* 20 16 48.1819754079 +32 22 47.394267082 6.41 7.25 7.16     B1V:nnpe 69 0
43 HD 195554 ** 20 29 27.1137626903 +56 04 05.459718358   5.846 5.912     B8.5V 88 2
44 HD 196712 Be* 20 39 13.2508908715 -02 24 46.715852037 5.70 6.124 6.220     B7Ve 53 0
45 HD 205551 Be* 21 34 27.4626995668 +51 41 54.475588554 5.73 6.140 6.163     B7IIIe 58 0
46 HD 205618 Be* 21 35 44.4767156575 +29 44 43.890956088 7.25 8.13 8.16     B2Vne 39 0
47 HD 239758 Be* 21 44 34.0129852666 +59 03 25.738769424 9.23 9.68 9.43     B2III:nn 45 0
48 HD 207232 Be* 21 46 02.8279985973 +50 40 26.939767137   6.960 7.022     B9 28 0
49 * 25 Peg Be* 22 07 50.3036328703 +21 42 10.530347500 5.27 5.68 5.78     B7Vne 111 0
50 * eps PsA Be* 22 40 39.3446800341 -27 02 36.967874856 3.69 4.071 4.177     B8Ve 143 0
51 HD 216851 Be* 22 55 47.0641811564 +43 33 33.442335354 7.55 8.02 7.97     B3V:n 44 0
52 HD 217050 Be* 22 57 04.5017623555 +48 41 02.641244743 4.81 5.34 5.43     B4IIIpe 319 1

    Equat.    Gal    SGal    Ecl

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2021.07.29-02:56:50

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