Explaining the Type Ia supernova PTF 11kx with a violent prompt merger scenario

  title={Explaining the Type Ia supernova PTF 11kx with a violent prompt merger scenario},
  author={Noam Soker and Amit Kashi and Enrique Garc{\'i}a–Berro and Santiago Torres and J. R. Angeles Camacho},
  journal={Monthly Notices of the Royal Astronomical Society},
We argue that the multiple shells of circumstellar material (CSM) and the supernovae (SN) ejecta interaction with the CSM starting 59 days after the explosion of the Type Ia SN (SN Ia) PTF 11kx, are best described by a violent prompt merger. In this prompt merger scenario the common envelope (CE) phase is terminated by a merger of a WD companion with the hot core of a massive asymptotic giant (AGB) star. In most cases the WD is disrupted and accreted onto the more massive core. However, in the… 

Figures from this paper

Constraining the double-degenerate scenario for Type Ia supernovae from merger ejected matter
We follow the mass expelled during the WD-WD merger process in a particular case of the double-degenerate (DD) scenario for Type Ia supernovae (SNe Ia), and find that the interaction of the SN ejecta
The explosion of supernova 2011fe in the frame of the core-degenerate scenario
We argue that the properties of the Type Ia supernova (SN Ia) SN 2011fe can be best explained within the frame of the core-degenerate (CD) scenario. In the CD scenario a white dwarf (WD) merges with
The progenitors of Type Ia supernovae (SNe Ia) are still unknown, despite significant progress during the past several years in theory and observations. Violent mergers of two carbon–oxygen (CO)
The number of progenitors in the core-degenerate scenario for Type Ia supernovae
We calculate the expected number of Type Ia supernovae (SN Ia) in the core-degenerate (CD) scenario and find it to match observations within the uncertainties of the code. In the CD scenario, the
Theoretical uncertainties of the Type Ia supernova rate
It is thought that Type Ia supernovae (SNe Ia) are explosions of carbon-oxygen white dwarfs (CO WDs). Two main evolutionary channels are proposed for the WD to reach the critical density required for
Smoothed particle hydrodynamics simulations of the core-degenerate scenario for Type Ia supernovae
The core-degenerate scenario for Type Ia supernovae involves the merger of the hot core of an asymptotic giant branch star and a white dwarf, and might contribute a non-negligible fraction of all
The circumstellar matter of supernova 2014J and the core-degenerate scenario
I show that the circumstellar matter (CSM) of the type Ia supernova 2014J is too massive and its momentum too large to be accounted for by any but the core-degenerate (CD) scenario for type Ia
Type Ia supernovae inside planetary nebulae: shaping by jets
Using 3D numerical hydrodynamical simulations we show that jets launched prior to type Ia supernova (SN Ia) explosion in the core-degenerate scenario can account for the appearance of two opposite
Rare events of a peculiar thermonuclear supernova that precedes a core-collapse supernova
We study stellar binary evolution that leads to the formation of a white dwarf (WD) that explodes in a thermonuclear supernova at the termination of a common envelope evolution (CEE) shortly before
Mass-accreting white dwarfs and type Ia supernovae
Type Ia supernovae (SNe Ia) play a prominent role in understanding the evolution of the Universe. They are thought to be thermonuclear explosions of mass-accreting carbon-oxygen white dwarfs (CO WDs)


The Core-Degenerate Scenario for Type Ia Supernovae
  • N. Soker
  • Physics
    Proceedings of the International Astronomical Union
  • 2011
Abstract In the core-degenerate (CD) scenario for the formation of Type Ia supernovae (SNe Ia) the Chandrasekhar or super-Chandrasekhar mass white dwarf (WD) is formed at the termination of the
Type Ia supernovae from very long delayed explosion of core–white dwarf merger
We study the spinning down time-scale of rapidly rotating white dwarfs (WDs) in the frame of the core-degenerate (CD) scenario for type Ia supernovae (SNe Ia). In the CD scenario, the Chandrasekhar
Type-Ia supernovae in dense circumstellar gas
We propose a model for the bolometric light curve of a type-Ia supernova (SN Ia) that explodes in a dense circumstellar (CS) envelope. Our modeling of the light curves for SN 2002ic and SN 1997cy
One of the most important questions regarding the progenitor systems of Type Ia supernovae (SNe Ia) is whether mergers of two white dwarfs can lead to explosions that reproduce observations of normal
Sub-Chandrasekhar White Dwarf Mergers as the Progenitors of Type Ia Supernovae
Type Ia supernovae (SNe Ia) are generally thought to be due to the thermonuclear explosions of carbon–oxygen white dwarfs (CO WDs) with masses near the Chandrasekhar mass. This scenario, however, has
A circumbinary disc in the final stages of common envelope and the core-degenerate scenario for Type Ia supernovae
We study the final stages of the common envelope (CE) evolution and find that a substantial fraction of the ejected mass does not reach the escape velocity. To reach this conclusion we use a
Evolution of Rotating Accreting White Dwarfs and the Diversity of Type Ia Supernovae
Type Ia supernovae (SNe Ia) have relatively uniform light curves and spectral evolution, which make SNe Ia useful standard candles to determine cosmological parameters. However, the peak brightness
Nearby Supernova Factory Observations of SN 2005gj: Another Type Ia Supernova in a Massive Circumstellar Envelope.
We report Nearby Supernova Factory observations of SN 2005gj, the second confirmed case of a ``hybrid'' Type Ia/IIn supernova, which we interpret as the explosion of a white dwarf interacting with a
Accreting white dwarf models for type I supernovae. I. Presupernova evolution and triggering mechanisms
As a plausible explosion model for a Type I supernova, the evolution of carbon-oxygen white dwarfs accreting helium in binary systems was investigated from the onset of accretion up to the point at
An asymptotic-giant-branch star in the progenitor system of a type Ia supernova
The presence of strong hydrogen emission associated with the type Ia supernova SN2002ic is reported, indicating the presence of large amounts of circumstellar material, and it is inferred that the progenitor system contained a massive asymptotic-giant-branch star that lost several solar masses of hydrogen-rich gas before the supernova explosion.