The question of the existence of the pre-main sequence (PMS) γ Doradus (γ Dor) pulsators has been raised by observations of young clusters such as NGC 884 hosting γ Dor members. We have explored the properties ofγ Dor-type pulsations with a grid of PMS models covering the mass range 1.2 < M*/M⊙ < 2.5 and we derive the theoretical instability strip (IS) for the PMS γ Dor pulsators. We explore the possibility of distinguishing between PMS and MS γ Dor by the behaviour of the period spacing of their high order gravity modes (g-modes) (© 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Bouabid M.-P., Montalban J., Miglio A., Dupret M.-A., Grigahcene A., Noels A. (2010). Theoretical study of γ Doradus pulsations in pre-main sequence stars. ASTRONOMISCHE NACHRICHTEN, 331(9-10), 1044-1048 [10.1002/asna.201011453].
Theoretical study of γ Doradus pulsations in pre-main sequence stars
Miglio A.;
2010
Abstract
The question of the existence of the pre-main sequence (PMS) γ Doradus (γ Dor) pulsators has been raised by observations of young clusters such as NGC 884 hosting γ Dor members. We have explored the properties ofγ Dor-type pulsations with a grid of PMS models covering the mass range 1.2 < M*/M⊙ < 2.5 and we derive the theoretical instability strip (IS) for the PMS γ Dor pulsators. We explore the possibility of distinguishing between PMS and MS γ Dor by the behaviour of the period spacing of their high order gravity modes (g-modes) (© 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
