Discovery of pulsations in the Am star HD 13079

Martinez, Peter ; Kurtz, D. W. ; Ashoka, B. N. ; Chaubey, U. S. ; Gupta, S. K. ; Leone, F. ; Catanzaro, G. ; Sagar, R. ; Raj, E. ; Seetha, S. ; Kasturirangan, K. (1999) Discovery of pulsations in the Am star HD 13079 Monthly Notices of the Royal Astronomical Society, 309 (4). pp. 871-874. ISSN 0035-8711

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Pulsation in cool main-sequence Am stars is a rare phenomenon observed in a few marginal Am stars and only one classical Am star. The chemically peculiar star HD 13079 is shown to be pulsating with a 78-min period and a peak-to-peak B amplitude of 0.02 mag. The Hipparcos parallax, uvbyβ photometry and pulsations together suggest that HD 13079 is an Am star near the zero-age main sequence, and that it is a fundamental-mode pulsator on the red edge of the instability strip.

Item Type:Article
Source:Copyright of this article belongs to Royal Astronomical Society.
Keywords:Stars: Chemically Peculiar; Stars: Individual: HD 13079; Stars: Oscillations
ID Code:16596
Deposited On:15 Nov 2010 13:36
Last Modified:17 May 2016 01:19

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