2002A&A...385..572D


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.12CEST23:59:39

2002A&A...385..572D - Astronomy and Astrophysics, volume 385, 572-584 (2002/4-2)

Influence of non-adiabatic temperature variations on line profile variations of slowly rotating β Cephei stars and SPBs. II. Simulations of line profile time series.

DE RIDDER J., DUPRET M.-A., NEUFORGE C. and AERTS C.

Abstract (from CDS):

We investigate to what extent non-adiabatic temperature variations at the surface of slowly rotating non-radially pulsating β Cephei stars and slowly pulsating B stars affect silicon line profile variations. We use the non-adiabatic amplitudes of the effective temperature and gravity variation presented in Dupret et al. (2002A&A...385..563D), together with a Kurucz intensity grid, to compute time series of line profile variations. Our simulations point out that the line shapes do not change significantly due to temperature variations. We find equivalent width variations of at most two percent of the mean equivalent width. We confront our results with observational equivalent width variations and with photometrically obtained effective temperature variations.

Abstract Copyright:

Journal keyword(s): stars: early-type - stars: variables: β Cep - stars: variables: slowly pulsating B stars - line: profiles

Simbad objects: 8

goto Full paper

goto View the reference in ADS

Number of rows : 8

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 * del Cet bC* 02 39 28.95579 +00 19 42.6345 2.97 3.85 4.07     B2IV 368 0
2 * nu. Eri bC* 04 36 19.1414419 -03 21 08.856678 2.82 3.737 3.928     B2III 373 0
3 V* TU Pic a2* 05 07 25.9270879271 -44 49 18.047568549   6.806 6.892     B5III 43 0
4 HD 53921 ** 07 03 15.09928 -59 10 41.1857   5.50 5.64     B9III+B8V 60 1
5 * tau01 Lup bC* 14 26 08.2242382 -45 13 17.131532 3.68 4.393 4.553     B2IV 143 0
6 HD 147985 Pu* 16 26 56.7425186863 -43 47 57.157197847 7.45 8.03 7.92     B1/2II/III 28 0
7 HD 181558 Pu* 19 21 37.1136252032 -19 14 04.049964502 5.65 6.16 6.26     B5III 63 0
8 V* BW Vul bC* 20 54 22.3949148537 +28 31 19.182736153 5.47 6.40 6.54     B2IIIv 286 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2002A&A...385..572D and select 'bookmark this link' or equivalent in the popup menu


2021.04.12-23:59:39

© Université de Strasbourg/CNRS

    • Contact