In: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 50, no. 2
J. Rukmini - D. Shanti Priya - P. Jishnu - G. Vinay Kumar
Details:
Year, pages: 2020, 627 - 629
Language: eng
Keywords:
binaries: subdwarfs, binaries: period variation, stars: spectroscopy: Balmer lines, stars: spectroscopy: equivalent widths
Original source URL: http://www.astro.sk/caosp/Eedition/Abstracts/2020/Vol_50/No_2/pp627-629_abstract.html
About article:
TYC 3315-1807-1 is an sdB+dM binary first reported by Kawka et al. (2010). Archival photometric data indicate the presence of a secondary companion causing a large reflection effect. Spectroscopic observations of the object were carried out from Vainu Bappu Observatory, Kavalur, to probe the nature of the secondary companion and to understand the post common-envelope evolution of such objects. Spectral line equivalent widths (EW) exhibit orbital phase dependent variations, indicating the probable contribution from the secondary. A period variation study of the object was carried out using times of minima obtained from the literature and suggesting a decrease in period. The evolutionary state of the system is evaluated and discussed.
How to cite:
ISO 690:
Rukmini, J., Shanti Priya, D., Jishnu, P., Vinay Kumar, G. 2020. A comprehensive study of the sdB+dM binary TYC 3315-1807-1. In Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 50, no.2, pp. 627-629. 1335-1842. DOI: https://doi.org/10.31577/caosp.2020.50.2.627
APA:
Rukmini, J., Shanti Priya, D., Jishnu, P., Vinay Kumar, G. (2020). A comprehensive study of the sdB+dM binary TYC 3315-1807-1. Contributions of the Astronomical Observatory Skalnaté Pleso, 50(2), 627-629. 1335-1842. DOI: https://doi.org/10.31577/caosp.2020.50.2.627
About edition:
Publisher: Astronomical Institute, Slovak Academy of Sciences
Published: 1. 3. 2020
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