Towards an understanding of Type Ia supernovae from a synthesis of theory and observations

By W. Hillebrandt, M. Kromer, Friedrich K. Röpke, A. Ruiter. 2013

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Motivated by the fact that calibrated light curves of Type Ia supernovae (SNe Ia) have become a major tool to determine the expansion history of the Universe, considerable attention has been given to, both, observations and models of these events over the past 15 years. Here, we summarize new observational constraints, address recent progress in modeling Type Ia supernovae by means of three-dimensional hydrodynamic simulations, and discuss several of the still open questions. It will be be shown that the new models have considerable predictive power which allows us to study observable properties such as light curves and spectra without adjustable non-physical parameters. This is a necessary requisite to improve our understanding of the explosion mechanism and to settle the question of the applicability of SNe Ia as distance indicators for cosmology. We explore the capabilities of the models by comparing them with observations and we show how such models can be applied to study the origin of the diversity of SNe Ia.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/701de06b6bf84d51920677066ed12ea18b347120

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Citations in the corpus

SPECTRAL PROPERTIES OF COOL STARS: EXTENDED ABUNDANCE ANALYSIS OF 1,617 PLANET-SEARCH STARS (2016, background): “Nickel The primary astrophysical interest in nickel is in measuring the energy output and progenitor mass of supernovae, particulary Type Ia (SNe Ia) (Arnett 1982; Hillebrandt et al. 2013).”
Observational Clues to the Progenitors of Type Ia Supernovae (2013, background): “Physical models of SN Ia explosions have been reviewed by Hillebrandt & Niemeyer (2000), with updates in Hillebrandt et al. (2013).”
Sub-Chandrasekhar-mass White Dwarf Detonations Revisited (2017, background): “The nature of Type Ia supernova (SN Ia) progenitors remains one of the enduring mysteries of astrophysics (for recent reviews, see Hillebrandt et al. 2013 and Maoz et al. 2014).”
Three-dimensional pure deflagration models with nucleosynthesis and synthetic observables for type ia supernovae (2013, methodology): “Apart from the single-degenerate MCh scenario, there are alternative models for SNe Ia (see e.g. Hillebrandt et al. 2013).”
NUGRID STELLAR DATA SET. I. STELLAR YIELDS FROM H TO BI FOR STARS WITH METALLICITIES Z = 0.02 and Z = 0.01 (2013, background): “…et al. 1999; Herwig 2005) and possibly later as progenitors of Type Ia supernovae (SNIa, e.g., Nomoto 1984; Timmes et al. 1995; Hillebrandt & Niemeyer 2000; Domı́nguez et al. 2001; Thielemann et al. 2004; Travaglio et al. 2011; Pakmor et al. 2012; Seitenzahl et al. 2013; Hillebrandt et al. 2013).”