Lopsided explosion models for type la supernovae

S. A. Sim; M. Kromer; W. Hillebrandt; F. K. Röpke

doi:10.1063/1.3141561

Lopsided explosion models for type la supernovae

S. A. Sim, M. Kromer, W. Hillebrandt, F. K. Röpke

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In recent years, considerable progress has been made in the hydrodynamical modelling of possible Type la supernovae scenarios and fully three-dimensional explosion simulations can now be carried out, as required for a realistic treatment of turbulent combustion. Some multi-dimensional explosion models predict significant departures from sphericity - one such class of model is that in which ignition takes place off-centre, leading to a lop-sided distribution of the products of nuclear burning. We discuss such a model and present our recent results from multi-dimensional radiative transfer calculations for light curves. We show that viewing-angle effects are significant in such explosions and that they may have a role to play in explaining some unusually bright events.

Original language	English
Title of host publication	Probing Stellar Populations Out To The Distant Universe - Cefalu 2008 - Proceedings of the International Conference
Pages	281-284
Number of pages	4
Volume	1111
DOIs	https://doi.org/10.1063/1.3141561
Publication status	Published - 21 Jul 2009
Externally published	Yes
Event	International Conference on Probing Stellar Populations Out To The Distant Universe, Cefalu 2008 - Sicily, Cefalu, Italy Duration: 07 Sept 2008 → 19 Sept 2008

Conference

Conference	International Conference on Probing Stellar Populations Out To The Distant Universe, Cefalu 2008
Country/Territory	Italy
City	Cefalu
Period	07/09/2008 → 19/09/2008

Keywords

Radiative transfer
Supernovae: general

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1063/1.3141561

Cite this

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title = "Lopsided explosion models for type la supernovae",

abstract = "In recent years, considerable progress has been made in the hydrodynamical modelling of possible Type la supernovae scenarios and fully three-dimensional explosion simulations can now be carried out, as required for a realistic treatment of turbulent combustion. Some multi-dimensional explosion models predict significant departures from sphericity - one such class of model is that in which ignition takes place off-centre, leading to a lop-sided distribution of the products of nuclear burning. We discuss such a model and present our recent results from multi-dimensional radiative transfer calculations for light curves. We show that viewing-angle effects are significant in such explosions and that they may have a role to play in explaining some unusually bright events.",

keywords = "Radiative transfer, Supernovae: general",

author = "Sim, {S. A.} and M. Kromer and W. Hillebrandt and R{\"o}pke, {F. K.}",

year = "2009",

month = jul,

day = "21",

doi = "10.1063/1.3141561",

language = "English",

isbn = "9780735406483",

volume = "1111",

pages = "281--284",

booktitle = "Probing Stellar Populations Out To The Distant Universe - Cefalu 2008 - Proceedings of the International Conference",

note = "International Conference on Probing Stellar Populations Out To The Distant Universe, Cefalu 2008 ; Conference date: 07-09-2008 Through 19-09-2008",

}

Sim, SA, Kromer, M, Hillebrandt, W & Röpke, FK 2009, Lopsided explosion models for type la supernovae. in Probing Stellar Populations Out To The Distant Universe - Cefalu 2008 - Proceedings of the International Conference. vol. 1111, pp. 281-284, International Conference on Probing Stellar Populations Out To The Distant Universe, Cefalu 2008, Cefalu, Italy, 07/09/2008. https://doi.org/10.1063/1.3141561

TY - GEN

T1 - Lopsided explosion models for type la supernovae

AU - Sim, S. A.

AU - Kromer, M.

AU - Hillebrandt, W.

AU - Röpke, F. K.

PY - 2009/7/21

Y1 - 2009/7/21

N2 - In recent years, considerable progress has been made in the hydrodynamical modelling of possible Type la supernovae scenarios and fully three-dimensional explosion simulations can now be carried out, as required for a realistic treatment of turbulent combustion. Some multi-dimensional explosion models predict significant departures from sphericity - one such class of model is that in which ignition takes place off-centre, leading to a lop-sided distribution of the products of nuclear burning. We discuss such a model and present our recent results from multi-dimensional radiative transfer calculations for light curves. We show that viewing-angle effects are significant in such explosions and that they may have a role to play in explaining some unusually bright events.

AB - In recent years, considerable progress has been made in the hydrodynamical modelling of possible Type la supernovae scenarios and fully three-dimensional explosion simulations can now be carried out, as required for a realistic treatment of turbulent combustion. Some multi-dimensional explosion models predict significant departures from sphericity - one such class of model is that in which ignition takes place off-centre, leading to a lop-sided distribution of the products of nuclear burning. We discuss such a model and present our recent results from multi-dimensional radiative transfer calculations for light curves. We show that viewing-angle effects are significant in such explosions and that they may have a role to play in explaining some unusually bright events.

KW - Radiative transfer

KW - Supernovae: general

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U2 - 10.1063/1.3141561

DO - 10.1063/1.3141561

M3 - Conference contribution

AN - SCOPUS:67650531879

SN - 9780735406483

VL - 1111

SP - 281

EP - 284

BT - Probing Stellar Populations Out To The Distant Universe - Cefalu 2008 - Proceedings of the International Conference

T2 - International Conference on Probing Stellar Populations Out To The Distant Universe, Cefalu 2008

Y2 - 7 September 2008 through 19 September 2008

ER -

Lopsided explosion models for type la supernovae

Abstract

Conference

Keywords

ASJC Scopus subject areas

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