Pulsations induced by deuterium-burning in young brown dwarfs

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dc.creatorPalla, Francesco
dc.creatorBaraffe, Isabelle
dc.date2005-02-09
dc.date.accessioned2026-07-07T02:16:57Z
dc.date.available2026-07-07T02:16:57Z
dc.descriptionVery low-mass stars and brown dwarfs can undergo pulsational instability excited by central deuterium burning during the initial phases of their evolution. We present the results of evolutionary and nonadiabatic linear stability models that show the presence of unstable fundamental modes. The pulsation periods vary bewteen ~5 hr for a 0.1 Msun star and ~1 hr for a 0.02 M$_\odot$ brown dwarf. The results are rather insensitive to variations in the input physics of the models. We show the location of the instability strip in the HR and c-m diagrams and discuss the observational searches for young pulsators in nearby star forming regions.
dc.descriptionto appear in Low Mass Stars and Brown Dwarfs: IMF, Accretion and Activity, eds. L. Testi & A. Natta (Mem. S.A.It 2005, Vol. 76, N.2)
dc.identifierhttps://arxiv.org/abs/astro-ph/0502193
dc.identifierhttp://arxiv.org/abs/astro-ph/0502193
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/8992
dc.subjectAstrophysics
dc.titlePulsations induced by deuterium-burning in young brown dwarfs
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