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| Query : 1998A&A...330..243H |
1998A&A...330..243H - Astronomy and Astrophysics, volume 330243-252 (1998/2-1)
On the spectacular variations of Be stars. Evidence for a temporarily tilted circumstellar disk.
HUMMEL W.
Abstract (from CDS):
A new explanation for the spectacular emission line variations occuring in the Be stars γ Cas and 59 Cyg is presented. We propose a circumstellar Keplerian disk, tilted with respect to the equatorial plane. The precessing nodal and apsidal line causes a variation in the emission line widths and profile shapes. In particular the sequence of alternating shell-phases and narrow single-peak phases is proposed to be due to an apparent variation in the disk inclination.
Abstract Copyright: ∼
Journal keyword(s): line: formation - line: profiles - stars: circumstellar matter - stars: emission-line, Be - stars: individual: γ Cas - stars: individual: 59 Cyg
Simbad objects: 4
| Number of rows : 4 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#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 | 1253 | 0 |
| 2 | * 28 Tau | Be* | 03 49 11.2165977912 | +24 08 12.156712008 | 4.73 | 5.01 | 5.09 | 5.08 | B8Vne | 494 | 0 | |
| 3 | * mu. Cen | Be* | 13 49 36.9886872492 | -42 28 25.440271450 | 2.37 | 3.27 | 3.43 | 3.41 | 3.50 | B2Vnpe | 453 | 0 |
| 4 | * f01 Cyg | Be* | 20 59 49.5541247496 | +47 31 15.363746436 | 3.77 | 4.71 | 4.75 | 4.62 | 4.63 | B1.5Vnne | 514 | 0 |
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