CAOSP abstracts, Volume: 38, No.: 2, year: 2008

Author(s): González, J.F.; Hubrig, S.; Savanov, I.
Journal: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 38, no. 2, p. 411-412.
Date: 4/2008
Title: A search for pulsational line profile variations in the δ Scuti star HD 21190 and the Ap Sr star HD 218994
Keyword(s): stars: chemically peculiar, stars: magnetic fields, stars: oscillations
Pages: 411 -- 412

Abstract: We present the results of our recent search for pulsational line profile variations in high time resolution UVES spectra of the most evolved Ap star known, the δ Scuti star HD 21190, and of the Ap Sr star HD 218994. We found that HD 218994 is an roAp star with a pulsation period of 5.1 min, which makes it the 36th star known to be a roAp star. No rapid pulsations have been found in the spectra of the δ Scuti star HD 21190. However, we detect moving peaks in the cores of spectral lines, which indicate the presence of non-radial pulsations in this star.

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