Seismological constraints on the high-gravity DOV stars PG 2131+066 and PG 1707+427

All of RECERCAT

To access the full text documents, please follow this link: http://hdl.handle.net/2117/9802

Title:	Seismological constraints on the high-gravity DOV stars PG 2131+066 and PG 1707+427
Author:	Córsico, Alejandro Hugo; Althaus, Leandro Gabriel; Miller Bertolami, Marcelo M; García-Berro Montilla, Enrique
Other authors:	Universitat Politècnica de Catalunya. Departament de Física Aplicada; Universitat Politècnica de Catalunya. GAA - Grup d'Astronomia i Astrofísica
Abstract:	A seismological study of the pulsating PG1159 stars PG2131+066 and PG 1707+427 is presented. We perform extensive adiabatic computations of g-mode pulsation periods of PG1159 evolutionary models with stellar masses ranging from 0.530 to 0.741M⊙. We constrain the stellar mass of PG2131+066 and PG 1707+427 by comparing the observed period spacing of each star with the theoretical asymptotic period spacings and with the average of the computed period spacings. We also employ the individual observed periods to find representative seismological models for both stars.
Subject(s):	-Àrees temàtiques de la UPC::Física::Astronomia i astrofísica -Pulsating stars -Estels variables
Rights:
Document type:	Article - Published version Article
Share: