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 - 2024
#notes
1 * omi Cas Be* 00 44 43.5186007265 +48 17 03.731037403 3.91 4.44 4.50 4.45 4.50 B5IIIe 282 0
2 * phi And Be* 01 09 30.12562 +47 14 30.4594 3.84 4.18 4.25 4.22 4.27 B5IIIe 237 0
3 HD 13669 Be* 02 15 02.6064837624 +55 47 35.598050808 7.84 8.25 7.90     B3IV-V 61 0
4 HD 13867 Be* 02 16 35.9953510392 +49 49 11.545139316 7.24 7.72 7.71     B5IIIe 40 0
5 BD+56 473 Be* 02 16 57.7103678448 +57 07 48.730568772 8.68 9.31 8.0712   7.6517 B1III/Ve 85 1
6 HD 13890 Be* 02 17 08.2163055288 +56 46 11.096889888 8.06 8.64 8.6370     B2.0III 67 0
7 BD+56 484 Be* 02 17 44.6582386752 +56 54 00.011357028 9.24 9.88 9.6420   8.1537 B1.0III 67 0
8 BD+56 493 Be* 02 18 18.3546298920 +56 51 02.232343764 9.15 9.95 8.7847   8.4218 B1IV/Ve 59 0
9 BD+56 511 Be* 02 18 47.9372995272 +57 04 02.189871156 8.97 9.49 8.2215   7.6884 B0-1Ve 63 0
10 BD+56 573 Be* 02 22 06.4431258264 +57 05 25.031082120 9.47 10.06 9.66     B2III-IVe 64 0
11 HD 14605 Be* 02 23 35.4361162152 +56 34 27.956112204 8.86 9.61 9.34     B0.5Vpe 74 0
12 HD 18552 Be* 03 00 11.8861086336 +38 07 54.197462964 5.67 6.05 6.11     B7IVe 90 0
13 HD 237056 Be* 03 02 37.8861049368 +57 36 46.065664296 10.739 9.38 8.90     B0.5:V:pe 61 0
14 HD 237060 Be* 03 04 30.5395753104 +59 26 46.691819088 9.34 9.47 9.20     B9V 20 0
15 * psi Per Be* 03 36 29.3797327450 +48 11 33.484405927 3.60 4.17 4.23     B5Ve 415 0
16 HD 23552 Be* 03 48 18.0746021928 +50 44 12.357606372 5.88 6.20 6.14     B8V 88 0
17 * c Per Be* 04 08 39.6935695869 +47 42 45.038007366 3.45 4.00 4.03 3.91 3.93 B3Ve 382 0
18 HD 27846 Be* 04 25 50.0074882440 +46 14 01.898598516 7.95 8.36 8.09     B1.5V 39 0
19 HD 276738 Be* 04 45 51.3276189744 +43 59 39.820295148 9.68 9.93 9.70     B5 18 0
20 HD 33604 Be* 05 13 13.3340536488 +40 11 36.703278348 6.68 7.36 7.38     B2V:pe 66 0
21 HD 244894 Be* 05 34 36.6241433808 +27 35 33.595888056 9.70 10.43 10.13     B1III-IVpe 24 0
22 HD 37657 Be* 05 42 19.8666978768 +43 03 34.517994084 6.66 7.25 7.25     B3Vne 71 0
23 HD 246878 Be* 05 44 27.7262441825 +27 13 47.679148473 8.95 9.46 9.36     B1.5IVe 34 0
24 HD 250289 Be* 06 01 05.8696266144 +23 20 20.383138500 7.74 8.71 8.23     B2III:e 63 0
25 HD 161103 HXB 17 44 45.7656635952 -27 13 44.478959340 8.44 9.23 9.13 9.12   B0.5III/IVe 82 0
26 HD 168797 Be* 18 21 28.4010720600 +05 26 08.560470876 5.47 6.09 6.13     B2Vne 123 0
27 HD 170682 Be* 18 31 24.2109018096 -19 09 31.025696112 8.06 8.20 7.95     B5II/III 55 0
28 HD 171406 Be* 18 33 23.0362685928 +30 53 31.594470396 5.96 6.429 6.534     B4Ve 68 0
29 HD 171757 Be* 18 37 40.0906560216 -27 59 08.171220516 8.25 8.95 9.0     B2nne 32 0
30 HD 172158 Be* 18 39 30.2353707696 -21 57 56.003094144 7.86 8.06 7.95     B8II 35 0
31 HD 172252 Be* 18 39 39.8461314720 -11 52 43.031021520 9.68 10.09 9.42     B0V:e 51 0
32 HD 173371 Be* 18 44 55.9135229664 -00 22 24.364000632 6.56 6.852 6.882     B9III 52 0
33 HD 179343 Be* 19 12 03.2772493 +02 37 21.323563 6.84 7.03 6.92     B7/8(e)_sh 62 0
34 * bet02 Cyg Be* 19 30 45.3961817904 +27 57 54.989118612 4.69 5.01 5.11     B8Ve 166 0
35 HD 350559 Be* 19 46 57.6848957376 +18 14 55.954598856   10.86 10.55     B6III/Ve 17 0
36 HD 187350 Be* 19 49 33.4538897304 -01 06 03.717545904 7.53 8.20 8.14     B1Vne 43 0
37 HD 333226 Be* 20 00 33.3660931536 +30 22 53.282906976 10.18 10.60 10.26     B0 30 0
38 HD 333452 Be* 20 03 11.0159551848 +28 42 20.439333648 10.40 10.28 9.49     B0 27 0
39 V* V372 Sge bC* 20 09 39.5945322600 +21 04 43.634595144   8.26 8.34     B0.5III-IV 41 0
40 HD 228438 Be* 20 13 50.2840675536 +36 37 22.551943476   8.699 8.37     B0.5III 34 0
41 HD 228658 Be* 20 16 08.5548415536 +37 33 23.055878664 10.09 10.43 10.24     B2II: 36 0
42 HD 193009 Be* 20 16 48.1819799400 +32 22 47.398192248 6.41 7.25 7.16     B1V:nnpe 74 0
43 HD 195554 ** 20 29 27.1108477224 +56 04 05.490194052   5.846 5.912     B8.5V 94 1
44 HD 196712 Be* 20 39 13.2507860040 -02 24 46.709284860 5.70 6.124 6.220     B7Ve 57 0
45 HD 205551 Be* 21 34 27.4633482288 +51 41 54.480749712 5.73 6.140 6.163     B7IIIe 61 0
46 HD 205618 Be* 21 35 44.4770094600 +29 44 43.892316780 7.25 8.13 8.16     B2Vne 43 0
47 HD 239758 Be* 21 44 34.0127758032 +59 03 25.740146700 9.23 9.68 9.43     B2III:nn 51 0
48 HD 207232 Be* 21 46 02.8278023904 +50 40 26.943635316   6.960 7.022     B9 32 0
49 * 25 Peg Be* 22 07 50.3038755192 +21 42 10.536282684 5.27 5.68 5.78     B7Vne 115 0
50 * eps PsA Be* 22 40 39.3482564136 -27 02 37.015051704 3.69 4.071 4.177     B7III 156 0
51 HD 216851 Be* 22 55 47.0642243040 +43 33 33.443380440 7.55 8.02 7.97     B3V:n 53 0
52 HD 217050 Be* 22 57 04.5020619144 +48 41 02.645623680 4.81 5.34 5.43     B4IIIpe 329 1

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