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δ Scuti Variables with Periods Longer than 0.25 Days

Published online by Cambridge University Press:  12 April 2016

E. Rodríguez  and
M. Breger
E. Rodríguez
Affiliation:
Instituto de Astrofìsica de Andalucía, CSIC, P.O. Box 3004, E-18080 Granada, Spain
M. Breger
Affiliation:
Institut für Astronomie, Universität Wien, Türkenschanzstr. 17, A-1180, Austria

Abstract

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Variables listed as δ Scuti-type pulsators in the R00 catalogue (Rodriguez et al., 2000) with periods longer than 0.d25 are examined on a star-by-star basis, in order to discriminate their true nature (δ Scuti, RR Lyr or γ Dor-type). From this study, it seems that three stars (DH Peg, UY Cam and YZ Cap) are RR Lyr pulsators rather than δ Scuti variables. Moreover, two variables (AD Ari and DE Oct) seem to be γ Dor variables with the shortest periods known to date (0.d2699 and 0.d2778, respectively).

Type
Part 2.4. Delta Scuti Stars
Information
International Astronomical Union Colloquium , Volume 185: Radial and Nonradial Pulsations as Probes of Stellar Physics , 2002 , pp. 328 - 329
Copyright
Copyright © Astronomical Society of the Pacific 2002

References

ESA 1997, The Hipparcos and Tycho Catalogues, ESA SP-1200Google Scholar
Rodríguez, E., López-González, M.J., & López de Coca, P. 2000, A&AS, 144, 469 Google Scholar