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Spectral Variability of the Symbiotic Star CH Cyg
Author(s)
Mikailov Khidir Mustafa Baku State University, Department of Astrophysics,Baku,Azerbaijan
Mammadov Ruslan Tavakkul Batabat Astrophysical Observatory of Nakhchivan branch of Azerbaijan National Academy of Sciences,Nakhchivan,Azerbaijan
Rustamov Bayram Nizam Baku State University, Department of Astrophysics, Baku, Azerbaijan; Shamakhy Astrophysical Observatory named after N.Tusi of the Azerbaijan National Academy of Sciences, Baku, Аzerbaijan, Azerbaijan
Rustamova Aysel Bayram Shamakhy Astrophysical Observatory named after N.Tusi of the Azerbaijan National Academy of Sciences, Baku, Аzerbaijan
Abstract
On July 15, 2015, the second telescope of the Shamakhi Astrophysical Observatory (ShAO) was used to collect 14 echelle spectra of the symbiotic star CH Cyg over the course of six hours of nocturnal exposures. Along the profiles of the lines ?α and ?β, the intensity of line Hel λ5876 Å fluctuates simultaneously with variations in the intensity ratios of the blue and red emission components. The Hel λ5876 Å line’s center intensities and corresponding widths correlate with information from the blue emission component of the lines. There are certain correlations between the radial velocities of the absorption DNaI and the emission line ?α
Publication Details
Page(s) 9-13
DOI DOI not available
Published Journal: Proceedings of the Pakistan Academy of Sciences: A. Physical and Computational Sciences, Volume: 60, Issue: 1, Year: 2023
Keywords
Line Intensity Symbiotic Star Line Profile Radial Velocity
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