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Long period oscillations in roAp stars

Published online by Cambridge University Press:  02 March 2005

J.D. Riley ,
D.W. Kurtz  and
M.S. Cunha
J.D. Riley
Affiliation:
Centre for Astrophysics, University of Central Lancashire, Preston, PR1 2HE, UK e-mail: jdriley@uclan.ac.uk
D.W. Kurtz
Affiliation:
Centre for Astrophysics, University of Central Lancashire, Preston, PR1 2HE, UK e-mail: jdriley@uclan.ac.uk
M.S. Cunha
Affiliation:
Centro do Astrofisica da Universidade de Porto, Rua das Estrelas, 4150-762 Porto, Portugal
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Abstract

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We present the results of observations made over three weeks using the UCT CCD Photometer on the 0.75-m telescope at the South African Astronomical Observatory. Candidate long period roAp stars were identified from their positions on the H-R diagram and observed for a typical period of 4 hr to test for the existence of pulsations, with particular emphasis on pulsations with periods in excess of 15 min. Although 13 stars were successfully observed, none exhibited significant pulsations.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Keywords

Stars: oscillations
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS224 , July 2004 , pp. 767 - 769
Copyright
© 2004 International Astronomical Union