Time-resolved spectroscopy of the rapidly oscillating Ap star KIC 10195926

Elkin, V. G., Kurtz, D. W. orcid iconORCID: 0000-0002-1015-3268, Shibahashi, H. and Saio, H. (2014) Time-resolved spectroscopy of the rapidly oscillating Ap star KIC 10195926. Monthly Notices of the Royal Astronomical Society, 444 (2). pp. 1344-1350. ISSN 0035-8711

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Official URL: http://dx.doi.org/10.1093/mnras/stu1533

Abstract

We report an analysis of high time resolution spectra of the chemically peculiar Ap star KIC 10195926 obtained with the Subaru telescope. We find that the star has low overabundances of rare earth elements compared with other rapidly oscillating Ap stars. We found only upper limits for pulsations from spectral lines of rare earth and other chemical elements. Pulsation was found only for the narrow core of the Hα line with an amplitude of 171 ± 41ms−1 and with the frequency corresponding to photometric frequency obtained from Kepler observations.


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