The frequency distribution of PG 1657+416, a rapidly pulsating sdB star

Oreiro, R.; Pérez Hernández, F.; Østensen, R.; Solheim, J.-E.; MacDonald, J.; Ulla, A.
Referencia bibliográfica

Communications in Astroseismology, Vol. 150, p.267

Fecha de publicación:
6
2007
Número de autores
6
Número de autores del IAC
2
Número de citas
0
Número de citas referidas
0
Descripción
We analyse the frequencies shown by the recently discovered pulsating sdB star PG 1657+416. It has at least four frequencies in the range 6.8--7.8 mHz, which are used to constrain the log g value of the star. Moreover, we derive an estimate of the radial order of the modes on the basis of the observed frequency distribution.