Progenitor properties of type II supernovae: fitting to hydrodynamical models using Markov chain Monte Carlo methods

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Context. The progenitor and explosion properties of type II supernovae (SNe II) are fundamental to understanding the evolution of massive stars. Particular attention has been paid to the initial masses of their progenitors, but despite the efforts made, the range of initial masses is still uncertain...

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Detalles Bibliográficos
Autores principales: Martínez, Laureano, Bersten, Melina Cecilia, Anderson, Joseph P., González-Gaitán, Santiago, Förster, Francisco, Folatelli, Gastón
Formato: Articulo
Lenguaje:Inglés
Publicado: 2020
Materias:
Astronomía
supernovae: general
stars: evolution
stars: massive
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/132078
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-132078
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Astronomía
supernovae: general
stars: evolution
stars: massive
spellingShingle Astronomía
supernovae: general
stars: evolution
stars: massive
Martínez, Laureano
Bersten, Melina Cecilia
Anderson, Joseph P.
González-Gaitán, Santiago
Förster, Francisco
Folatelli, Gastón
Progenitor properties of type II supernovae: fitting to hydrodynamical models using Markov chain Monte Carlo methods
topic_facet Astronomía
supernovae: general
stars: evolution
stars: massive
description Context. The progenitor and explosion properties of type II supernovae (SNe II) are fundamental to understanding the evolution of massive stars. Particular attention has been paid to the initial masses of their progenitors, but despite the efforts made, the range of initial masses is still uncertain. Direct imaging of progenitors in pre-explosion archival images suggests an upper initial mass cutoff of ∼18 M⊙. However, this is in tension with previous studies in which progenitor masses inferred by light-curve modelling tend to favour high-mass solutions. Moreover, it has been argued that light-curve modelling alone cannot provide a unique solution for the progenitor and explosion properties of SNe II. Aims. We develop a robust method which helps us to constrain the physical parameters of SNe II by simultaneously fitting their bolometric light curve and the evolution of the photospheric velocity to hydrodynamical models using statistical inference techniques. Methods. We created pre-supernova red supergiant models using the stellar evolution code MESA, varying the initial progenitor mass. We then processed the explosion of these progenitors through hydrodynamical simulations, where we changed the explosion energy and the synthesised nickel mass together with its spatial distribution within the ejecta. We compared the results to observations using Markov chain Monte Carlo methods. Results. We apply this method to a well-studied set of SNe with an observed progenitor in pre-explosion images and compare with results in the literature. Progenitor mass constraints are found to be consistent between our results and those derived by pre-SN imaging and the analysis of late-time spectral modelling. Conclusions. We have developed a robust method to infer progenitor and explosion properties of SN II progenitors which is consistent with other methods in the literature. Our results show that hydrodynamical modelling can be used to accurately constrain the physical properties of SNe II. This study is the starting point for a further analysis of a large sample of hydrogen-rich SNe.
format Articulo
Articulo
author Martínez, Laureano
Bersten, Melina Cecilia
Anderson, Joseph P.
González-Gaitán, Santiago
Förster, Francisco
Folatelli, Gastón
author_facet Martínez, Laureano
Bersten, Melina Cecilia
Anderson, Joseph P.
González-Gaitán, Santiago
Förster, Francisco
Folatelli, Gastón
author_sort Martínez, Laureano
title Progenitor properties of type II supernovae: fitting to hydrodynamical models using Markov chain Monte Carlo methods
title_short Progenitor properties of type II supernovae: fitting to hydrodynamical models using Markov chain Monte Carlo methods
title_full Progenitor properties of type II supernovae: fitting to hydrodynamical models using Markov chain Monte Carlo methods
title_fullStr Progenitor properties of type II supernovae: fitting to hydrodynamical models using Markov chain Monte Carlo methods
title_full_unstemmed Progenitor properties of type II supernovae: fitting to hydrodynamical models using Markov chain Monte Carlo methods
title_sort progenitor properties of type ii supernovae: fitting to hydrodynamical models using markov chain monte carlo methods
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/132078
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