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Delta Scuti Stars in Open Clusters: w2 and w20 in NGC 2264 and h501 and h906 in α Per

Published online by Cambridge University Press:  12 April 2016

J. H. Peña ,
R. Peniche ,
F. Cervantes ,
R. M. García  and
J. P. Sareyan
J. H. Peña
Affiliation:
Instituto de Astronomía, UNAM, Ap. Postal 70-264, Mexico D. F. 04510, México
R. Peniche
Affiliation:
Instituto de Astronomía, UNAM, Ap. Postal 70-264, Mexico D. F. 04510, México
F. Cervantes
Affiliation:
Instituto de Astronomía, UNAM, Ap. Postal 70-264, Mexico D. F. 04510, México Facultad de Ciencias, UNAM, Cd. Investigation Mexico D. F. 04510, México
R. M. García
Affiliation:
Instituto de Astronomía, UNAM, Ap. Postal 70-264, Mexico D. F. 04510, México Facultad de Ciencias, UNAM, Cd. Investigation Mexico D. F. 04510, México
J. P. Sareyan
Affiliation:
Observatoire de la Cote d’Azur, CERGA, F-06130 Grasse, France

Extract

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There are many advantages to studying variable stars in open clusters; the parameters that determine the evolution of the stars, such as chemical composition and age, can be considered to be the same for all the stars in the cluster. These data, along with the mass, effective temperature and superficial gravity, allow us to better determine the physics which explain the pulsation mechanisms. In the present paper the variable stars h501 and h906 in α Per and w2 and w20 in NGC 2264 are studied. In particular, the reasons why δ Scuti stars coexist with early type stars in NGC 2264 is examined.

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. 465 - 466
Copyright
Copyright © Astronomical Society of the Pacific 2000

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