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A search for pulsational line profile variations in the δ Scuti star HD 21190 and the Ap Sr star HD 218994

In: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 38, no. 2
J.f. González - S. Hubrig - I. Savanov
Detaily:
Rok, strany: 2008, 411 - 412
Kľúčové slová:
stars: chemically peculiar, stars: magnetic fields, stars: oscillations
O článku:
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.
Ako citovať:
ISO 690:
González, J., Hubrig, S., Savanov, I. 2008. A search for pulsational line profile variations in the δ Scuti star HD 21190 and the Ap Sr star HD 218994. In Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 38, no.2, pp. 411-412. 1335-1842.

APA:
González, J., Hubrig, S., Savanov, I. (2008). A search for pulsational line profile variations in the δ Scuti star HD 21190 and the Ap Sr star HD 218994. Contributions of the Astronomical Observatory Skalnaté Pleso, 38(2), 411-412. 1335-1842.