Theoretical study of gamma Doradus pulsations in pre-main sequence stars

• Type: Article in International Scientific Journal
• Date: 2010

Authors

M.P. Bouabid (Author) Other; J. Montalban (Author) FCUP; A. Miglio (Author) FCUP; M.A. Dupret (Author) FCUP; A. Grigahcene (Author) FCUP; A. Noels (Author) FCUP

Journal

Title: Astronomische Nachrichten

Vol. 331 No. 9-10

Pages: 1044-1048

ISSN: 0004-6337

Publisher: Wiley-Blackwell

Indexing

ISI Web of Science

Scientific classification

FOS: Natural sciences > Physical sciences

CORDIS: Physical sciences ; Physical sciences > Astronomy ; Physical sciences > Astronomy > Astrophysics

Other information

Abstract (EN): The question of the existence of the pre-main sequence (PMS) gamma Doradus (gamma Dor) pulsators has been raised by observations of young clusters such as NGC 884 hosting gamma Dor members. We have explored the properties of gamma Dor-type pulsations with a grid of PMS models covering the mass range 1.2 < M-*/M-circle dot < 2.5 and we derive the theoretical instability strip (IS) for the PMS gamma Dor pulsators. We explore the possibility of distinguishing between PMS and MS gamma Dor by the behaviour of the period spacing of their high order gravity modes (g-modes).

Language: English

Type (Professor's evaluation): Scientific