Luminosity, selfgravitation and nonuniqueness of stationary accretion

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dc.creatorKarkowski, Janusz
dc.creatorMalec, Edward
dc.creatorRoszkowski, Krzysztof
dc.date2006-11-13
dc.date.accessioned2026-07-07T07:30:48Z
dc.date.available2026-07-07T07:30:48Z
dc.descriptionWe investigate newtonian description of accreting compact bodies with hard surfaces, including luminosity and selfgravitation of polytropic perfect fluids. This nonlinear integro-differential problem reduces, under appropriate boundary conditions, to an algebraic relation between luminosity and the gas abundance in stationary spherically symmetric flows. There exist, for a given luminosity, asymptotic mass and the asymptotic temperature, two sub-critical solutions that bifurcate from a critical point. They differ by the fluid content and the mass of the compact centre.
dc.description5 pages, 1 figure
dc.identifierhttps://arxiv.org/abs/astro-ph/0611393
dc.identifierhttp://arxiv.org/abs/astro-ph/0611393
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/118525
dc.subjectAstrophysics
dc.titleLuminosity, selfgravitation and nonuniqueness of stationary accretion
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