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2018AstBu..73..471K - Astrophys. Bull., 73, 471-477 (2018/December-0)
Super-Fast Line-Profile Variability in the Spectra of OBA-Stars: B1-Star rho Leo.
KHOLTYGIN A.F., BATRAKOV A.A., FABRIKA S.N., VALEEV A.F., TUMANOVA I.M. and TSIOPA O.A.
Abstract (from CDS):
This study continues our investigation of the super-fast variability of line profiles in the spectra of early-type stars. We have investigated the line-profile variability in spectra of OBA-stars with the SCORPIO multi-mode focal reducer mounted at the 6-m SAO RAS telescope. Regular short-period variations of the H and He lines in the spectra of the B1I star rho Leo were detected with periods ranging from 2 to 90 minutes, as well as irregular line-profile variations on time intervals less than 1 minute. A possible origin of rapid spectral variations is discussed.
Abstract Copyright: ∼
Journal keyword(s): stars:early-type - stars: individual: rho Leo
Status at CDS : Objects in title, abstract, text, figures, and all or part of small table(s) being processed in SIMBAD.
Simbad objects: 1
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