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SuperWASP observations of pulsating Am stars
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(2011) SuperWASP observations of pulsating Am stars. Astronomy & Astrophysics, Volume 535 . Article number A3. doi:10.1051/0004-6361/201117230 Research output not available from this repository, contact author.
Official URL: http://dx.doi.org/10.1051/0004-6361/201117230
Abstract
We have studied over 1600 Am stars at a photometric precision of 1 mmag with SuperWASP photometric data. Contrary to previous belief, we find that around 200 Am stars are pulsating δ Sct and γ Dor stars, with low amplitudes that have been missed in previous, less extensive studies. While the amplitudes are generally low, the presence of pulsation in Am stars places a strong constraint on atmospheric convection, and may require the pulsation to be laminar. While some pulsating Am stars have been previously found to be δ Sct stars, the vast majority of Am stars known to pulsate are presented in this paper. They will form the basis of future statistical studies of pulsation in the presence of atomic diffusion.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science > Physics | ||||
| Journal or Publication Title: | Astronomy & Astrophysics | ||||
| Publisher: | EDP Sciences | ||||
| ISSN: | 0004-6361 | ||||
| Official Date: | November 2011 | ||||
| Dates: |
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| Volume: | Volume 535 | ||||
| Article Number: | Article number A3 | ||||
| DOI: | 10.1051/0004-6361/201117230 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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