naa a22 4500 510790291 CHVBK 20180411083317.0 cr unu---uuuuu 180411e20130401xx s 000 0 eng 10.1134/S1063773713040026 doi (NATIONALLICENCE)springer-10.1134/S1063773713040026 Glazyrin S. Institute for Theoretical and Experimental Physics, Bol'shaya Cheremushkinskaya ul., 25, 117259, Moscow, Russia aut Investigation of burning in type Ia supernovae [Elektronische Daten] [S. Glazyrin] Type Ia supernovae are important cosmological objects that have played a major role in determining the composition of the Universe. Despite four decades of studies, there is no complete understanding of the explosion mechanism. One of the main problems consists in describing the burning wave propagation through the presupernova, a white dwarf. It is well known from observations that an initially slow flame accelerates and transforms into detonation as it moves. The acceleration mechanism realized in supernovae is not yet known, but it is believed to occur through various instabilities. The Landau-Darrieus instability of a thin deflagration thermonuclear burning front propagating through the presupernova is investigated. Direct numerical simulations of burning by the level-set method are presented. Small perturbations at the front are shown to merge into one large cusp after some time. As a flame with limited sizes moves, this leads only to a slight increase in the velocity, which does not allow it to accelerate to the speed of sound. Pleiades Publishing, Ltd., 2013 supernovae nationallicence thermonuclear burning nationallicence Astronomy Letters SP MAIK Nauka/Interperiodica 39/4(2013-04-01), 221-226 1063-7737 39:4<221 2013 39 11443 https://doi.org/10.1134/S1063773713040026 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1063773713040026 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Glazyrin S. Institute for Theoretical and Experimental Physics, Bol'shaya Cheremushkinskaya ul., 25, 117259, Moscow, Russia aut NATIONALLICENCE 773 0- Astronomy Letters SP MAIK Nauka/Interperiodica 39/4(2013-04-01), 221-226 1063-7737 39:4<221 2013 39 11443 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer