An Algorithm for Recovering the Characteristics of the Initial State of Supernova

An Algorithm for Recovering the Characteristics of the Initial State of Supernova Full article

Journal

Computational Mathematics and Mathematical Physics
ISSN: 0965-5425 , E-ISSN: 1555-6662

Output data

Year: 2020, Volume: 60, Number: 6, Pages: 1008-1016 Pages count : 9 DOI: 10.1134/S0965542520060135

Tags

computational astrophysics; Godunov’s scheme; retrospective inverse problem; supernova

Authors

Kabanikhin S.I. ^1,2,3,4 , Kulikov I.M. ³ , Shishlenin M.A. ^1,2,3,4

Affiliations

1	Mathematical Center in Akademgorodok, Novosibirsk, 630090, Russian Federation
2	Novosibirsk State University, Novosibirsk, 630090, Russian Federation
3	Institute of Computational Mathematics and Mathematical Geophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation
4	Sobolev Institute of Mathematics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation

Abstract: An optimization method for the numerical solution of the inverse problem of recovering the initial state of a supernova is proposed. The gradient of the inverse problem objective functional is constructed. The solution of the direct and adjoint problems is based on a combination of the large particle method, Godunov’s method, and piecewise parabolic method on a local stencil. Results of the verification of the proposed numerical method and the results of numerical solution of the Evrard and Sedov collapse problems are presented. © 2020, Pleiades Publishing, Ltd.

Kabanikhin S.I. , Kulikov I.M. , Shishlenin M.A.
An Algorithm for Recovering the Characteristics of the Initial State of Supernova
Computational Mathematics and Mathematical Physics. 2020. V.60. N6. P.1008-1016. DOI: 10.1134/S0965542520060135 WOS Scopus OpenAlex

Web of science:	WOS:000555591800008
Scopus:	2-s2.0-85088999047
OpenAlex:	W3046538942

DB	Citing
Scopus	12
OpenAlex	11
Web of science	8