Astronomy and Astrophysics – Astronomy
Scientific paper
May 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993astl...19..160s&link_type=abstract
Astronomy Letters, Vol. 19, p. 160-168; Pis'ma v Astronomicheskij Zhurnal (ISSN 0320-0108), vol. 19, no. 5, p. 417-435. In Russ
Astronomy and Astrophysics
Astronomy
5
Annual Variations, Binary Stars, Spectral Line Width, Stellar Orbits, Stellar Spectra, Orbital Elements, Radial Velocity, Silicon
Scientific paper
High spectral resolution and S/N ratio CCD observations of Beta Lyrae in the region of the silicon red doublet performed with the 2.6-m telescope of the Crimean Observatory are reported. Radial velocity curves of the silicon lines for both components of the close binary system are obtained and their orbits are calculated. The cyclic variability for the silicon and neon lines is confirmed, but the W(lambda) = f(P) dependence changed only slightly from 1991 to 1992. The observations revealed a shift of the local eclipse of the region of the bright component's magnetic pole, i.e., the region of the major emission formation, by the satellite disk surrounding the secondary component from the phase 0.97P in 1991 to the phase 0.93P in 1992.
No associations
LandOfFree
Study of the Beta Lyrae spectrum - Characteristics of the SiII 6347, 6371 doublet in 1992 and their variability from season to season 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 Study of the Beta Lyrae spectrum - Characteristics of the SiII 6347, 6371 doublet in 1992 and their variability from season to season, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Study of the Beta Lyrae spectrum - Characteristics of the SiII 6347, 6371 doublet in 1992 and their variability from season to season will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1852988