English
Related papers

Related papers: Three-dimensional pure deflagration models with nu…

200 papers

Due to the increasing number of observations Type Ia supernovae are nowadays regarded as a heterogeneous class of objects consisting of several subclasses. One of the largest of these is the class of Type Iax supernovae (SNe Iax) which have…

Solar and Stellar Astrophysics · Physics 2022-03-14 F. Lach , F. P. Callan , D. Bubeck , F. K. Roepke , S. A. Sim , M. Schrauth , S. T. Ohlmann , M. Kromer

2002cx-like supernovae are a sub-class of sub-luminous Type Ia supernovae. Their light curves and spectra are characterized by distinct features that indicate strong mixing of the explosion ejecta. Pure turbulent deflagrations have been…

A simulation of the thermonuclear explosion of a Chandrasekhar-mass C+O white dwarf, the most popular scenario of a type Ia supernova (SN Ia), is presented. The underlying modeling is pursued in a self-consistent way, treating the…

Astrophysics · Physics 2009-11-13 F. K. Roepke , W. Hillebrandt , W. Schmidt , J. C. Niemeyer , S. I. Blinnikov , P. A. Mazzali

In a companion paper, Seitenzahl et al. (2013) presented a set of three-dimensional delayed detonation models for thermonuclear explosions of near-Chandrasekhar mass white dwarfs (WDs). Here, we present multi-dimensional radiative transfer…

High Energy Astrophysical Phenomena · Physics 2015-06-17 S. A. Sim , I. R. Seitenzahl , M. Kromer , F. Ciaraldi-Schoolmann , F. K. Röpke , M. Fink , W. Hillebrandt , R. Pakmor , A. J. Ruiter , S. Taubenberger

We present two-dimensional hydrodynamics simulations of near-Chandrasekhar mass white dwarf (WD) models for Type Ia supernovae (SNe Ia) using the turbulent deflagration model with deflagration-detonation transition (DDT). We perform a…

Solar and Stellar Astrophysics · Physics 2019-06-26 Shing-Chi Leung , Ken'ichi Nomoto

A leading model for Type Ia supernovae (SNe Ia) begins with a white dwarf near the Chandrasekhar mass that ignites a degenerate thermonuclear runaway close to its center and explodes. In a series of papers, we shall explore the consequences…

High Energy Astrophysical Phenomena · Physics 2015-06-15 H. Ma , S. E. Woosley , C. M. Malone , A. Almgren , J. B. Bell

We present results for a suite of fourteen three-dimensional, high resolution hydrodynamical simulations of delayed-detonation modelsof Type Ia supernova (SN Ia) explosions. This model suite comprises the first set of three-dimensional SN…

The most favored progenitor scenarios for Type Ia supernovae (SNe Ia) involve the single-degenerate (SD) scenario and the double-degenerate scenario. The absence of stripped hydrogen (H) in the nebular spectra of SNe Ia challenges the SD…

Solar and Stellar Astrophysics · Physics 2013-11-19 Zheng-Wei Liu , M. Kromer , M. Fink , R. Pakmor , F. K. Roepke , X. F. Chen , B. Wang , Z. W. Han

Currently popular models for Type Ia supernovae (SNe Ia) fall into two general classes. The first comprises explosions of nearly pure carbon/oxygen (C/O) white dwarfs at the Chandrasekhar limit which ignite near their centers. The second…

Astrophysics · Physics 2009-10-31 Philip A. Pinto , Ronald G. Eastman , Tamara Rogers

There are two classes of viable progenitors for normal Type Ia supernovae (SNe Ia): systems in which a white dwarf explodes at the Chandrasekhar mass ($M_{ch}$), and systems in which a white dwarf explodes below the Chandrasekhar mass…

High Energy Astrophysical Phenomena · Physics 2018-01-31 Daniel A. Goldstein , Daniel Kasen

The observed sub-class of "superluminous" Type Ia supernovae lacks a convincing theoretical explanation. If the emission of such objects were powered exclusively by radioactive decay of 56Ni formed in the explosion, a progenitor mass close…

High Energy Astrophysical Phenomena · Physics 2018-10-24 M. Fink , M. Kromer , W. Hillebrandt , F. K. Roepke , R. Pakmor , I. R. Seitenzahl , S. A. Sim

Observations of type Ia supernovae include information about the characteristic nucleosynthesis associated with these thermonuclear explosions. We consider observational constraints from iron-group elemental and isotopic ratios, to compare…

The recently observed diversity of Type Ia supernovae (SNe Ia) has motivated us to conduct the theoretical modeling of SNe Ia for a wide parameter range. In particular, the origin of Type Iax supernovae (SNe Iax) has been obscure. Following…

High Energy Astrophysical Phenomena · Physics 2020-09-09 Shing-Chi Leung , Ken'ichi Nomoto

We perform two-dimensional hydrodynamic simulations for the thermonuclear explosion of Chandrasekhar-mass white dwarfs with dark matter (DM) cores in Newtonian gravity. We include a 19-isotope nuclear reaction network and make use of the…

Cosmology and Nongalactic Astrophysics · Physics 2020-01-01 Shing-Chi Leung , Ming-Chung Chu , Lap-Ming Lin

Because calibrated light curves of Type Ia supernovae have become a major tool to determine the local expansion rate of the Universe and also its geometrical structure, considerable attention has been given to models of these events over…

Astrophysics · Physics 2008-11-26 W. Hillebrandt , J. C. Niemeyer

Several highly luminous Type Ia supernovae (SNe Ia) have been discovered. Their high luminosities are difficult to explain with the thermonuclear explosions of the Chandrasekhar-mass white dwarfs (WDs). In the present study, we estimate the…

High Energy Astrophysical Phenomena · Physics 2012-08-31 Yasuomi Kamiya , Masaomi Tanaka , Ken'ichi Nomoto , Sergei I. Blinnikov , Elena I. Sorokina , Tomoharu Suzuki

Extremely luminous, super-Chandrasekhar (SC) Type Ia Supernovae (SNe Ia) are as yet an unexplained phenomenon. We analyse a well-observed SN of this class, SN 2009dc, by modelling its photospheric spectra with a spectral synthesis code,…

The acceleration of the expansion of the universe, and the need for Dark Energy, were inferred from the observations of Type Ia supernovae (SNe Ia). There is consensus that SNe Ia are thermonuclear explosions that destroy carbon-oxygen…

Recent observations of type Ia supernovae (SNe Ia) have discovered a subclass of 'super-Chandrasekhar' SNe Ia (SC SNe Ia) whose high luminosities and low ejecta velocities suggest that they originate from the explosions of white dwarfs…

Solar and Stellar Astrophysics · Physics 2023-06-16 Margot Fitz Axen , Peter Nugent

We review some recent developments in theoretical studies on the connection between the progenitor systems of Type Ia supernovae (SNe Ia) and the explosion mechanisms. (1) DD-subCh: In the merging of double C+O white dwarfs (DD scenario),…

Solar and Stellar Astrophysics · Physics 2013-02-19 Ken'ichi Nomoto , Yasuomi Kamiya , Naohito Nakasato
‹ Prev 1 2 3 10 Next ›