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Ejecta masses in Type Ia Supernovae -- Implications for the Progenitor and the Explosion Scenario

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Main Authors:	Bora, Zsófia, Könyves-Tóth, Réka, Vinkó, József, Bánhidi, Dominik, Bíró, Imre Barna, Bostroem, K. Azalee, Bódi, Attila, Burke, Jamison, Csányi, István, Cseh, Borbála, Farah, Joseph, Filippenko, Alexei V., Hegedűs, Tibor, Hiramatsu, Daichi, Horti-Dávid, Ágoston, Howell, D. Andrew, Jha, Saurabh W., Kalup, Csilla, Krezinger, Máté, Kriskovics, Levente, McCully, Curtis, Newsome, Megan, Ordasi, András, Gonzalez, Estefania Padilla, Pál, András, Pellegrino, Craig, Seli, Bálint, Sódor, Ádám, Szabó, Zsófia Marianna, Szabó, Norton O., Szakáts, Róbert, Szalai, Tamás, Székely, Péter, Terreran, Giacomo, Varga, Vázsony, Vida, Krisztián, Wang, Xiaofeng, Wheeler, J. Craig
Format:	Preprint
Published:	2024
Subjects:	High Energy Astrophysical Phenomena Solar and Stellar Astrophysics
Online Access:	Acceder al recurso
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_version_	1866909294492909568
author	Bora, Zsófia Könyves-Tóth, Réka Vinkó, József Bánhidi, Dominik Bíró, Imre Barna Bostroem, K. Azalee Bódi, Attila Burke, Jamison Csányi, István Cseh, Borbála Farah, Joseph Filippenko, Alexei V. Hegedűs, Tibor Hiramatsu, Daichi Horti-Dávid, Ágoston Howell, D. Andrew Jha, Saurabh W. Kalup, Csilla Krezinger, Máté Kriskovics, Levente McCully, Curtis Newsome, Megan Ordasi, András Gonzalez, Estefania Padilla Pál, András Pellegrino, Craig Seli, Bálint Sódor, Ádám Szabó, Zsófia Marianna Szabó, Norton O. Szakáts, Róbert Szalai, Tamás Székely, Péter Terreran, Giacomo Varga, Vázsony Vida, Krisztián Wang, Xiaofeng Wheeler, J. Craig
author_facet	Bora, Zsófia Könyves-Tóth, Réka Vinkó, József Bánhidi, Dominik Bíró, Imre Barna Bostroem, K. Azalee Bódi, Attila Burke, Jamison Csányi, István Cseh, Borbála Farah, Joseph Filippenko, Alexei V. Hegedűs, Tibor Hiramatsu, Daichi Horti-Dávid, Ágoston Howell, D. Andrew Jha, Saurabh W. Kalup, Csilla Krezinger, Máté Kriskovics, Levente McCully, Curtis Newsome, Megan Ordasi, András Gonzalez, Estefania Padilla Pál, András Pellegrino, Craig Seli, Bálint Sódor, Ádám Szabó, Zsófia Marianna Szabó, Norton O. Szakáts, Róbert Szalai, Tamás Székely, Péter Terreran, Giacomo Varga, Vázsony Vida, Krisztián Wang, Xiaofeng Wheeler, J. Craig
contents	The progenitor system(s) as well as the explosion mechanism(s) of thermonuclear (Type Ia) supernovae are long-standing issues in astrophysics. Here we present ejecta masses and other physical parameters for 28 recent Type Ia supernovae inferred from multiband photometric and optical spectroscopic data. Our results confirm that the majority of SNe Ia show {\it observable} ejecta masses below the Chandrasekhar-limit (having a mean $M_{\rm ej} \approx 1.1 \pm 0.3$ M$_\odot$), consistent with the predictions of recent sub-M$_{\rm Ch}$ explosion models. They are compatible with models assuming either single- or double-degenerate progenitor configurations. We also recover a sub-sample of supernovae within $1.2 $ M$_\odot$ $< M_{\rm {ej}} < 1.5$ M$_\odot$ that are consistent with near-Chandrasekhar explosions. Taking into account the uncertainties of the inferred ejecta masses, about half of our SNe are compatible with both explosion models. We compare our results with those in previous studies, and discuss the caveats and concerns regarding the applied methodology.
format	Preprint
id	arxiv_https___arxiv_org_abs_2408_11928
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	Ejecta masses in Type Ia Supernovae -- Implications for the Progenitor and the Explosion Scenario Bora, Zsófia Könyves-Tóth, Réka Vinkó, József Bánhidi, Dominik Bíró, Imre Barna Bostroem, K. Azalee Bódi, Attila Burke, Jamison Csányi, István Cseh, Borbála Farah, Joseph Filippenko, Alexei V. Hegedűs, Tibor Hiramatsu, Daichi Horti-Dávid, Ágoston Howell, D. Andrew Jha, Saurabh W. Kalup, Csilla Krezinger, Máté Kriskovics, Levente McCully, Curtis Newsome, Megan Ordasi, András Gonzalez, Estefania Padilla Pál, András Pellegrino, Craig Seli, Bálint Sódor, Ádám Szabó, Zsófia Marianna Szabó, Norton O. Szakáts, Róbert Szalai, Tamás Székely, Péter Terreran, Giacomo Varga, Vázsony Vida, Krisztián Wang, Xiaofeng Wheeler, J. Craig High Energy Astrophysical Phenomena Solar and Stellar Astrophysics The progenitor system(s) as well as the explosion mechanism(s) of thermonuclear (Type Ia) supernovae are long-standing issues in astrophysics. Here we present ejecta masses and other physical parameters for 28 recent Type Ia supernovae inferred from multiband photometric and optical spectroscopic data. Our results confirm that the majority of SNe Ia show {\it observable} ejecta masses below the Chandrasekhar-limit (having a mean $M_{\rm ej} \approx 1.1 \pm 0.3$ M$_\odot$), consistent with the predictions of recent sub-M$_{\rm Ch}$ explosion models. They are compatible with models assuming either single- or double-degenerate progenitor configurations. We also recover a sub-sample of supernovae within $1.2 $ M$_\odot$ $< M_{\rm {ej}} < 1.5$ M$_\odot$ that are consistent with near-Chandrasekhar explosions. Taking into account the uncertainties of the inferred ejecta masses, about half of our SNe are compatible with both explosion models. We compare our results with those in previous studies, and discuss the caveats and concerns regarding the applied methodology.
title	Ejecta masses in Type Ia Supernovae -- Implications for the Progenitor and the Explosion Scenario
topic	High Energy Astrophysical Phenomena Solar and Stellar Astrophysics
url	https://arxiv.org/abs/2408.11928