2003A&A...403.1023S

Query : 2003A&A...403.1023S

2003A&A...403.1023S - Astronomy and Astrophysics, volume 403, 1023-1029 (2003/6-1)

Estimation of the mass loss, opening angle and mass of Be circumstellar disks from Brγ continuum emission and interferometric measurements.

STEE P.

Abstract (from CDS):

Using the SIMECA code developed by Stee & Araujo (1994A&A...292..221S); Stee et al. (1995A&A...300..219S) for Be stars we obtain a correlation between the mass loss rates {dot}(M) and the Brγ continuum luminosity as a function of the opening angle of the disk. We show that this correlation is similar to those obtained by Scuderi et al. (1998A&A...332..251S) for O-B supergiants. We found that the wind density at the base of the photosphere, from a sample of 8 Be stars, lies between 10–13 and 10–12g/cm3. We also present a relationship between the mass of the circumstellar disk and the 2.16µm flux. Finally we emphasize how interferometric measurements can help to estimate the wind density and we present a sample of 16 Be stars with predicted visibilities that can be observed with the VLTI.

Abstract Copyright: ∼

Journal keyword(s): stars: emission line, Be - stars: winds, outflows - technique: interferometric

Simbad objects: 25

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Number of rows : 25
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 * gam Cas HXB 00 56 42.5310945 +60 43 00.264089 1.18 2.29 2.39 2.32 2.40 B0.5IVpe 1209 0
2 * alf Eri Be* 01 37 42.84548 -57 14 12.3101 -0.36 0.30 0.46 0.49 0.60 B6Vpe 473 1
3 * phi Per Be* 01 43 39.6379691568 +50 41 19.433124998 3.10 4.02 4.06 3.90 3.88 B1.5V:e-shell 571 0
4 * psi Per Be* 03 36 29.3797327450 +48 11 33.484405927 3.60 4.17 4.23     B5Ve 415 0
5 * eta Tau Be* 03 47 29.0765529 +24 06 18.488347 2.44 2.78 2.87 2.84 2.88 B7III 536 1
6 * c Per Be* 04 08 39.6935695869 +47 42 45.038007366 3.45 4.00 4.03 3.91 3.93 B3Ve 382 0
7 * zet Tau Be* 05 37 38.6854231 +21 08 33.158804 2.22 2.84 3.03 3.06 3.15 B1IVe_shell 730 0
8 * alf Col Be* 05 39 38.9410319 -34 04 26.794991 2.10 2.53 2.65 2.65 2.74 B9Ve 240 0
9 * kap CMa Be* 06 49 50.4591124672 -32 30 30.523820933 2.73 3.68 3.89 3.91 4.05 B1.5Ve 286 0
10 * ome CMa Be* 07 14 48.6540133346 -26 46 21.603204215 2.90 3.64 3.82 3.80 3.90 B2.5Ve 353 0
11 * bet CMi Be* 07 27 09.0417373 +08 17 21.536745 2.52 2.80 2.89 2.90 2.96 B8Ve 383 0
12 * omi Pup Be* 07 48 05.1686329933 -25 56 13.810593657 3.42 4.43 4.49 4.37 4.37 B1IVe 217 0
13 * ome Car Be* 10 13 44.2205948661 -70 02 16.463210640 2.92 3.25 3.33 3.29 3.32 B7III 122 0
14 * p Car Be* 10 32 01.4650915230 -61 41 07.195030368 2.46 3.18 3.27 3.22 3.28 B4Vne 232 0
15 HD 105382 Be* 12 08 05.2222663992 -50 39 40.575451536 3.65 4.32 4.47 4.53 4.70 B5V 172 0
16 * del Cen Be* 12 08 21.4976373 -50 43 20.738614 1.51 2.39 2.52 2.48 2.62 B2Vne 309 0
17 * kap Dra Be* 12 33 28.9433168544 +69 47 17.659892220 3.18 3.75 3.89 3.84 3.92 B6IIIe 378 0
18 * mu.02 Cru Be* 12 54 36.8841589536 -57 10 07.193918388 4.59 5.09 5.20 5.00 5.06 B5Vne 179 0
19 * eta Cen Be* 14 35 30.4241610 -42 09 28.170782 1.30 2.12 2.31 2.41 2.59 B2Ve 343 1
20 * mu. Lup Be* 15 18 32.02296 -47 52 30.9957 3.82         B8Ve 105 0
21 * chi Oph Be* 16 27 01.4355697915 -18 27 22.499961252 3.95 4.71 4.43 3.97 3.73 B2Vne 598 0
22 * alf Ara Be* 17 31 50.4915282 -49 52 34.122041 2.09 2.78 2.95 3.05 3.29 B2Vne 255 0
23 * omi Aqr Be* 22 03 18.8440617830 -02 09 19.313835540 4.22 4.64 4.69 4.70 4.74 B5V 268 0
24 * pi. Aqr Be* 22 25 16.6230017410 +01 22 38.634449478 3.64 4.60 4.64 4.48 4.48 B1III-IVe 415 0
25 HD 217050 Be* 22 57 04.5020619144 +48 41 02.645623680 4.81 5.34 5.43     B4IIIpe 329 1

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