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Mode typing of the dominant mode in the Delta Sct star X Cae by line profile moments

1996/12/06 by L. Mantegazza, E. Poretti, Mantegazza, L. +1
Engineering · Physics and Astronomy · #Astronomical Observations and Instrumentation #Astrophysics (astro-ph) #FOS: Physical sciences #Geophysics and Sensor Technology #Stellar, planetary, and galactic studies #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/9612064

2 pages, latex, 1 figure To be publishing in the Proceedings of the IAU Symposium 181 'Sounding Solar and Stellar Interior', Nice, 30 Sept-3 Oct, 1996

arxiv created 1996/12/06 · openalex publication_date 1996/12/06 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We use moment method developed by Balona (1987) to identify the dominant mode of the multimode pulsating Delta Scuti star X Cae. It is shown as a l=1 and m=-1 non-radial mode gives a satisfactory fit of the amplitudes and phases of light and line moments variations provided that the rotational axis has i<45 degrees. The physical parameters corresponding to this mode are derived and discussed.

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