The Response of Model and Astrophysical Thermonuclear Flames to Curvature and Stretch | Zendy

Lewis Jonathan Dursi | Zendy; M. Zingale | Zendy; A. C. Calder | Zendy; B. Fryxell | Zendy; F. X. Timmes | Zendy; Natalia Vladimirova | Zendy; R. Rosner | Zendy; A. de Lorenzo-Cáceres | Zendy; D. Q. Lamb | Zendy; K. Olson | Zendy; P. M. Ricker | Zendy; Katherine Riley | Zendy; Andrew Siegel | Zendy; J. W. Truran | Zendy

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The Response of Model and Astrophysical Thermonuclear Flames to Curvature and Stretch

Author(s) -

Lewis Jonathan Dursi,

M. Zingale,

A. C. Calder,

B. Fryxell,

F. X. Timmes,

Natalia Vladimirova,

R. Rosner,

A. de Lorenzo-Cáceres,

D. Q. Lamb,

K. Olson,

P. M. Ricker,

Katherine Riley,

Andrew Siegel,

J. W. Truran

Publication year - 2003

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/377433

Subject(s) - curvature , deflagration , supernova , thermonuclear fusion , mechanics , physics , explosive material , astrophysics , detonation , chemistry , nuclear physics , plasma , geometry , mathematics , organic chemistry

Critically understanding the `standard candle'-like behavior of Type Iasupernovae requires understanding their explosion mechanism. One family ofmodels for Type Ia Supernovae begins with a deflagration in a Carbon-Oxygenwhite dwarf which greatly accelerates through wrinkling and flameinstabilities. While the planar speed and behavior of astrophysically-relevantflames is increasingly well understood, more complex behavior, such as theflame's response to stretch and curvature, has not been extensively explored inthe astrophysical literature; this behavior can greatly enhance or suppressinstabilities and local flame-wrinkling, which in turn can increase or decreasethe bulk burning rate. In this paper, we explore the effects of curvature onboth nuclear flames and simpler model flames to understand the effect ofcurvature on the flame structure and speed.Comment: 25 pages; accepted to ApJ; fixed author field

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