Mathematics
Scientific paper
Oct 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002ycat..33930965d&link_type=abstract
VizieR On-line Data Catalog: J/A+A/393/965. Originally published in: 2002A&A...393..965D
Mathematics
1
Stars: Variable, Stars: Early-Type, Binaries: Spectroscopic
Scientific paper
We present the results of detailed frequency analyses of a sample of thirteen confirmed slowly pulsating B stars. Our analysis is based on a combination of elaborate photometric and spectroscopic data-sets. The original sample consists of a mixture of five confirmed slowly pulsating B stars and twelve candidate slowly pulsating B stars discovered thanks to the photometric measurements of the HIPPARCOS satellite. HD 55522 and HD 131120 turn out to be chemically peculiar stars. HD 169978 and HD 69144 are two ellipsoidal variables for which no intrinsic variability is found. At least nine of the thirteen studied slowly pulsating B stars are multi-periodic.
We here present the observed amplitudes, phases and their corresponding standard errors of the variations with the accepted intrinsic frequencies in the first three normalised velocity moments of the SiII 413.0nm line profiles, in the seven filters of the Geneva photometric system, and in the Hp filter of the HIPPARCOS photometric system. They are determined by fitting the data with a superposition of sinusoidal models with reference epoch HJD=2450000. For the higher order moments, the appropriate interaction terms are also taken into account (see Mathias et al., 1994A&A...283..813M). We use the same notations as in Aerts (1996A&A...314..115A) and Aerts (2000, Cat.
(2 data files).
Aerts Christine
de Cat Peter
No associations
LandOfFree
Intrinsic frequencies of slowly pulsating B stars (De Cat+, 2002) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Intrinsic frequencies of slowly pulsating B stars (De Cat+, 2002), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intrinsic frequencies of slowly pulsating B stars (De Cat+, 2002) will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1862047