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Period Variations and Binary Hypotheses of Three δ Scuti stars: CY Aqr, BS Aqr, AD CMi

Published online by Cambridge University Press:  12 April 2016

Jian Ning Fu
Jian Ning Fu*
Affiliation:
Laboratoire d’Astrophysique, Observatoire Midi-Pyrénées, 14 avenue Édouard Belin, F-31400 Toulouse, France

Abstract

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Some new times of light maxima for three δ Scuti stars – CY Aqr, BS Aqr and AD CMi – have been determined based on new photoelectric photometry. Incorporated with the times presented in the literature, the O–C method is used to study the period variations of these stars with a newly-developed program OMC. The results reveal that for these three stars, the binary hypothesis concerning a low mass companion is reasonable in explaining the O–C diagrams.

Type
Part 6. Variables Close to the Main Sequence
Information
International Astronomical Union Colloquium , Volume 176: The Impact of Large-Scale Surveys on Pulsating Star Research , 2000 , pp. 475 - 476
Copyright
Copyright © Astronomical Society of the Pacific 2000

References

Fu, J.N., Jiang, S.Y., & Zhou, A.Y. 1998, Publ. Beijing Astron. Obs. 32, 35 Google Scholar
Hoffmeister, C. 1931, Astron. Nachr., 242, 128 Google Scholar
Hoffmeister, C. 1934a, Beobachtungszirkular Astron. Nachr., 16, 45 Google Scholar
Hoffmeister, C. 1934b, Astron. Nachr., 253, 195 Google Scholar