Optical And X-ray Variability Of γ Cas Stars: Sao 49725

Abstract

The present paper is devoted to studying the variability of the $\gamma$ Cas type star SAO 49725. Both the optical and X-ray spectra of the star are analyzed. Variability of line profiles in the spectra of SAO 49725 was discovered on short (70-223 minutes) scales. Based on the TESS photometric light curves of SAO 49725 the regular variations of light curves are detected with a period of 1.1989 days identified as the rotation period of the star. The pattern of photometric variability in SAO 49725, as observed by TESS, varies significantly across different epochs. The TESS components of the SAO 49725 light curves with periods of $\sim 3-21$days may be instrumental.

References in corpus (8)

• Classical Be Stars: Rapidly Rotating B Stars with Viscous Keplerian Decretion Disks
• The SCORPIO focal reducer
• Temperature, gravity and bolometric correction scales for non-supergiant OB stars
• Velocity monitoring of gamma-Cas stars reveals their binarity status
• New Gamma Cas-like objects: X-ray and optical observations of SAO49725 and HD161103
• Disruption of circumstellar discs by large-scale stellar magnetic fields
• The incidence of magnetic fields in massive stars: An overview of the MiMeS Survey Component
• Microvariability of Line Profiles in the Spectra of OB Stars II: $\delta$Ori A