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

V. G. Elkin; D. W. Kurtz; H. Shibahashi; H. Saio

doi:10.1093/mnras/stu1533

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

V. G. Elkin, D. W. Kurtz, H. Shibahashi, H. Saio

Science

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3 Citations (Scopus)

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.

Original language	English
Pages (from-to)	1344-1350
Number of pages	7
Journal	Monthly Notices of the Royal Astronomical Society
Volume	444
Issue number	2
DOIs	https://doi.org/10.1093/mnras/stu1533
Publication status	Published - 2014 Jan 1

Keywords

Asteroseismology
Stars: Chemically peculiar
Stars: Individual:KIC 10195926
Stars: Oscillations

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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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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T1 - Time-resolved spectroscopy of the rapidly oscillating Ap star KIC 10195926

AU - Elkin, V. G.

AU - Kurtz, D. W.

AU - Shibahashi, H.

AU - Saio, H.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - 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.

AB - 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.

KW - Asteroseismology

KW - Stars: Chemically peculiar

KW - Stars: Individual:KIC 10195926

KW - Stars: Oscillations

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JO - Monthly Notices of the Royal Astronomical Society

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