Seismology of Evolved Beta Scuti Stars and the Binary BQ CNC in the Praesepe Cluster

Bibcode
1998ASPC..135..484H
Hernandez, M. M.; Perez Hernandez, F.; Michel, E.; Belmonte, J. A.; Goupil, M. J.; Lebreton, Y.
Bibliographical reference

A Half Century of Stellar Pulsation Interpretation: A Tribute to Arthur N. Cox, edited by Paul A. Bradley and Joyce A. Guzik, Proceedings of a Conference held in Los Alamos, NM 16-20 June 1997, ASP Conference Series #135, p. 484.

Advertised on:
0
1998
Number of authors
6
IAC number of authors
0
Citations
3
Refereed citations
2
Description
Three d Scuti stars of Praesepe cluster (BT Cnc, KW 284 and EP Cnc) seem to be at the end of the hydrogen core burning in the subgiant phase. This is supported by the fitting of isochrones to the cluster and by the larger period of their pulsations compared to the other delta Scuti stars in the cluster. After the results obtained in a joint identification of the radial modes for four less evolved delta Scuti stars, we try to find a consistent identification of the modes in these three evolved stars. BQ Cnc is another delta Scuti star in Praesepe catalogued as a double-lined spectroscopic binary. Considering different assumptions about the real position of the isolated pulsating star in the HR diagram, we present the most plausible identification of their modes according to the results obtained for the other stars.
Type
Non-refereed

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