TY - JOUR
T1 - Modeling Type Ia supernova explosions
AU - Röpke, F.K.
AU - Seitenzahl, I.R.
AU - Benitez, S.
AU - Fink, M.
AU - Pakmor, R.
AU - Kromer, M.
AU - Sim, S.A.
AU - Ciaraldi-Schoolmann, F.
AU - Hillebrandt, W.
N1 - Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011/4/1
Y1 - 2011/4/1
N2 - Despite their astrophysical significanceas a major contributor to cosmic nucleosynthesis and as distance indicators in observational cosmologyType Ia supernovae lack theoretical explanation. Not only is the explosion mechanism complex due to the interaction of (potentially turbulent) hydrodynamics and nuclear reactions, but even the initial conditions for the explosion are unknown. Various progenitor scenarios have been proposed. After summarizing some general aspects of Type Ia supernova modeling, recent simulations of our group are discussed. With a sequence of modeling starting (in some cases) from the progenitor evolution and following the explosion hydrodynamics and nucleosynthesis we connect to the formation of the observables through radiation transport in the ejecta cloud. This allows us to analyze several models and to compare their outcomes with observations. While pure deflagrations of Chandrasekhar-mass white dwarfs and violent mergers of two white dwarfs lead to peculiar events (that may, however, find their correspondence in the observed sample of SNe Ia), only delayed detonations in Chandrasekhar-mass white dwarfs or sub-Chandrasekhar-mass explosions remain promising candidates for explaining normal Type Ia supernovae.
AB - Despite their astrophysical significanceas a major contributor to cosmic nucleosynthesis and as distance indicators in observational cosmologyType Ia supernovae lack theoretical explanation. Not only is the explosion mechanism complex due to the interaction of (potentially turbulent) hydrodynamics and nuclear reactions, but even the initial conditions for the explosion are unknown. Various progenitor scenarios have been proposed. After summarizing some general aspects of Type Ia supernova modeling, recent simulations of our group are discussed. With a sequence of modeling starting (in some cases) from the progenitor evolution and following the explosion hydrodynamics and nucleosynthesis we connect to the formation of the observables through radiation transport in the ejecta cloud. This allows us to analyze several models and to compare their outcomes with observations. While pure deflagrations of Chandrasekhar-mass white dwarfs and violent mergers of two white dwarfs lead to peculiar events (that may, however, find their correspondence in the observed sample of SNe Ia), only delayed detonations in Chandrasekhar-mass white dwarfs or sub-Chandrasekhar-mass explosions remain promising candidates for explaining normal Type Ia supernovae.
UR - http://www.scopus.com/inward/record.url?partnerID=yv4JPVwI&eid=2-s2.0-79952702853&md5=05b4ecb258119fbc5ff23f41fd0682c6
U2 - 10.1016/j.ppnp.2011.01.026
DO - 10.1016/j.ppnp.2011.01.026
M3 - Article
AN - SCOPUS:79952702853
SN - 0146-6410
VL - 66
SP - 309
EP - 318
JO - Progress in Particle and Nuclear Physics
JF - Progress in Particle and Nuclear Physics
IS - 2
ER -