Nonlinearity of nonradial modes in evolved stars

Simple item page
dc.creatorNowakowski, Rafal M.
dc.creatorDziembowski, Wojciech A.
dc.date2003-01-24
dc.date.accessioned2026-07-07T02:07:19Z
dc.date.available2026-07-07T02:07:19Z
dc.descriptionWe show that in evolved stars, even at relatively low surface amplitudes, nonradial modes become strongly nonlinear in the hydrogen shell source, where the Brunt-Vaisala frequency has its absolute maximum. The measure of nonlinearity is the product of horizontal displacement times the radial wavenumber. It becomes large already in evolved delta-Scuti stars. This nonlinearity presents a major problem for interpretations of amplitude modulation in RR Lyrae stars in terms of nonradial mode excitation.
dc.description4 pages, 2 figures, to appear in "Asteroseismology Across the HR Diagram", Eds. Thompson M.J., Cunha M.S., Monteiro M.J.P.F.G., Kluwer, 2003
dc.identifierhttps://arxiv.org/abs/astro-ph/0301504
dc.identifierhttp://arxiv.org/abs/astro-ph/0301504
dc.identifierAstrophys.Space Sci. 284 (2003) 273-276
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/5657
dc.subjectAstrophysics
dc.titleNonlinearity of nonradial modes in evolved stars
dc.typetext

Files

Collections

arXiv