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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

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