[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5303/PKAS.2015.30.2.233

SPECTROSCOPIC ANALYSIS OF THE RS CVn STAR EI Eri

KEERATIBHARAT, J. (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University)
MKRTICHIAN, D.E. (National Astronomical Research Institute of Thailand)
KOMONJINDA, S. (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University)

Publication Information

Publications of The Korean Astronomical Society / v.30, no.2, 2015 , pp. 233-234 More about this Journal

Abstract

We present results of a new high-resolution spectroscopic study of the RS CVn-type binary system EI Eridani (HD26337). We used high S/N ratio LSD profiles to measure a new RV orbit of the primary component and new orbital parameters. We found evidence of strong spectral line profile variations at time intervals indicating the existence of short-lived (few days) spots on the surface of the primary component. We measured a projected rotation velocity of star of 53.2 km/s.

Keywords

RS CVn variable star; Least-Squares Deconvolution technique;

Citations & Related Records

Reference

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