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Strong Shock in a Uniform Expanding Universe. Approximate and Exact Solutions of Self-Similar Equations

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dc.contributor.authorPanafidina, S. A.
dc.contributor.authorBisnovatyi-Kogan, G. S.
dc.contributor.authorБисноватый-Коган, Геннадий Семенович
dc.date.accessioned2024-11-20T11:15:53Z
dc.date.available2024-11-20T11:15:53Z
dc.date.issued2019
dc.description.abstract© 2019, Pleiades Publishing, Ltd. Self-similar solution is obtained for propagation of a strong shock, in a flat expanding dusty Friedman universe. Approximate analytic solution was obtained earlier, using relation between self-similar variables, equivalent to the exact energy conservation integral, which was obtained by L.I. Sedov for the strong explosion in the static uniform medium. Here, numerical integration of self-similar equation is performed, providing an exact solution of the problem, which is rather close to the approximate analytic one. The differences between these solutions are most apparent in the vicinity of the shock. For a polytropic equation of state, self-similar solutions exist in a more narrow interval of the adiabatic power than in the static case.
dc.format.extentС. 263-273
dc.identifier.citationPanafidina, S. A. Strong Shock in a Uniform Expanding Universe. Approximate and Exact Solutions of Self-Similar Equations / Panafidina, S.A., Bisnovatyi-Kogan, G.S. // Astronomy Reports. - 2019. - 63. - № 4. - P. 263-273. - 10.1134/S1063772919040012
dc.identifier.doi10.1134/S1063772919040012
dc.identifier.urihttps://www.doi.org/10.1134/S1063772919040012
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85064556614&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000466774600002
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/16934
dc.relation.ispartofAstronomy Reports
dc.titleStrong Shock in a Uniform Expanding Universe. Approximate and Exact Solutions of Self-Similar Equations
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue4
oaire.citation.volume63
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relation.isAuthorOfPublication.latestForDiscovery8207cbb5-6929-4b61-a959-03839711b81e
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