Ignition of detonation in accreted helium envelopes

Ignition of detonation in accreted helium envelopes

Abstract Sub-Chandrasekhar CO white dwarfs accreting helium have been considered as candidates for Type Ia supernova (SNIa) progenitors since the early 1980s (helium shell mass >0.1 M⊙). These models, once detonated, did not fit the observed spectra and light curve of typical SNIa observations. N...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Monthly notices of the Royal Astronomical Society 2018-05, Vol.476 (2), p.2238-2248
Hauptverfasser: Glasner, S Ami, Livne, E, Steinberg, E, Yalinewich, A, Truran, James W
Format: Artikel
Sprache:eng
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 2248
container_issue 2
container_start_page 2238
container_title Monthly notices of the Royal Astronomical Society
container_volume 476
creator Glasner, S Ami
Livne, E
Steinberg, E
Yalinewich, A
Truran, James W
description Abstract Sub-Chandrasekhar CO white dwarfs accreting helium have been considered as candidates for Type Ia supernova (SNIa) progenitors since the early 1980s (helium shell mass >0.1 M⊙). These models, once detonated, did not fit the observed spectra and light curve of typical SNIa observations. New theoretical work examined detonations on much less massive (
doi_str_mv 10.1093/mnras/sty421
format Article
fullrecord <record><control><sourceid>oup_TOX</sourceid><recordid>TN_cdi_crossref_primary_10_1093_mnras_sty421</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><oup_id>10.1093/mnras/sty421</oup_id><sourcerecordid>10.1093/mnras/sty421</sourcerecordid><originalsourceid>FETCH-LOGICAL-c333t-51ea3db181accc66c53fc45db1da6c4fddf2aee0cbf56488601488f2876197393</originalsourceid><addsrcrecordid>eNp9jzFPwzAQhS0EEqGw8QOysRDqy8VOMqIKSqVKLO0cufYZghI7slOk_ntCw8zyTu_06UkfY_fAn4DXuOxdUHEZx1ORwwVLAKXI8lrKS5ZwjiKrSoBrdhPjF-e8wFwmDDcfrh1b71JvU0Ojd-rcWpcqrQONZNJP6tpjn5L7ps4PFG_ZlVVdpLu_u2D715fd6i3bvq83q-dtphFxzASQQnOACqYlLaUWaHUhpo9RUhfWGJsrIq4PVsiiqiSHKW1elRLqEmtcsMd5VwcfYyDbDKHtVTg1wJtf4eYs3MzCE_4w4_44_E_-AORYWUw</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Ignition of detonation in accreted helium envelopes</title><source>Oxford Journals Open Access Collection</source><creator>Glasner, S Ami ; Livne, E ; Steinberg, E ; Yalinewich, A ; Truran, James W</creator><creatorcontrib>Glasner, S Ami ; Livne, E ; Steinberg, E ; Yalinewich, A ; Truran, James W</creatorcontrib><description>Abstract Sub-Chandrasekhar CO white dwarfs accreting helium have been considered as candidates for Type Ia supernova (SNIa) progenitors since the early 1980s (helium shell mass &gt;0.1 M⊙). These models, once detonated, did not fit the observed spectra and light curve of typical SNIa observations. New theoretical work examined detonations on much less massive (&lt;0.05 M⊙) envelopes. They find stable detonations that lead to light curves, spectra, and abundances that compare relatively well with the observational data. The exact mechanism leading to the ignition of helium detonation is a key issue, since it is a mandatory first step for the whole scenario. As the flow of the accreted envelope is unstable to convection long before any hydrodynamic phenomena develops, a multidimensional approach is needed in order to study the ignition process. The complex convective reactive flow is challenging to any hydrodynamical solver. To the best of our knowledge, all previous 2D studies ignited the detonation artificially. We present here, for the first time, fully consistent results from two hydrodynamical 2D solvers that adopt two independent accurate schemes. For both solvers, an effort was made to overcome the problematics raised by the finite resolution and numerical diffusion by the advective terms. Our best models lead to the ignition of a detonation in a convective cell. Our results are robust and the agreement between the two different numerical approaches is very good.</description><identifier>ISSN: 0035-8711</identifier><identifier>EISSN: 1365-2966</identifier><identifier>DOI: 10.1093/mnras/sty421</identifier><language>eng</language><publisher>Oxford University Press</publisher><ispartof>Monthly notices of the Royal Astronomical Society, 2018-05, Vol.476 (2), p.2238-2248</ispartof><rights>2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c333t-51ea3db181accc66c53fc45db1da6c4fddf2aee0cbf56488601488f2876197393</citedby><cites>FETCH-LOGICAL-c333t-51ea3db181accc66c53fc45db1da6c4fddf2aee0cbf56488601488f2876197393</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1604,27924,27925</link.rule.ids><linktorsrc>$$Uhttps://dx.doi.org/10.1093/mnras/sty421$$EView_record_in_Oxford_University_Press$$FView_record_in_$$GOxford_University_Press</linktorsrc></links><search><creatorcontrib>Glasner, S Ami</creatorcontrib><creatorcontrib>Livne, E</creatorcontrib><creatorcontrib>Steinberg, E</creatorcontrib><creatorcontrib>Yalinewich, A</creatorcontrib><creatorcontrib>Truran, James W</creatorcontrib><title>Ignition of detonation in accreted helium envelopes</title><title>Monthly notices of the Royal Astronomical Society</title><description>Abstract Sub-Chandrasekhar CO white dwarfs accreting helium have been considered as candidates for Type Ia supernova (SNIa) progenitors since the early 1980s (helium shell mass &gt;0.1 M⊙). These models, once detonated, did not fit the observed spectra and light curve of typical SNIa observations. New theoretical work examined detonations on much less massive (&lt;0.05 M⊙) envelopes. They find stable detonations that lead to light curves, spectra, and abundances that compare relatively well with the observational data. The exact mechanism leading to the ignition of helium detonation is a key issue, since it is a mandatory first step for the whole scenario. As the flow of the accreted envelope is unstable to convection long before any hydrodynamic phenomena develops, a multidimensional approach is needed in order to study the ignition process. The complex convective reactive flow is challenging to any hydrodynamical solver. To the best of our knowledge, all previous 2D studies ignited the detonation artificially. We present here, for the first time, fully consistent results from two hydrodynamical 2D solvers that adopt two independent accurate schemes. For both solvers, an effort was made to overcome the problematics raised by the finite resolution and numerical diffusion by the advective terms. Our best models lead to the ignition of a detonation in a convective cell. Our results are robust and the agreement between the two different numerical approaches is very good.</description><issn>0035-8711</issn><issn>1365-2966</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp9jzFPwzAQhS0EEqGw8QOysRDqy8VOMqIKSqVKLO0cufYZghI7slOk_ntCw8zyTu_06UkfY_fAn4DXuOxdUHEZx1ORwwVLAKXI8lrKS5ZwjiKrSoBrdhPjF-e8wFwmDDcfrh1b71JvU0Ojd-rcWpcqrQONZNJP6tpjn5L7ps4PFG_ZlVVdpLu_u2D715fd6i3bvq83q-dtphFxzASQQnOACqYlLaUWaHUhpo9RUhfWGJsrIq4PVsiiqiSHKW1elRLqEmtcsMd5VwcfYyDbDKHtVTg1wJtf4eYs3MzCE_4w4_44_E_-AORYWUw</recordid><startdate>20180511</startdate><enddate>20180511</enddate><creator>Glasner, S Ami</creator><creator>Livne, E</creator><creator>Steinberg, E</creator><creator>Yalinewich, A</creator><creator>Truran, James W</creator><general>Oxford University Press</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20180511</creationdate><title>Ignition of detonation in accreted helium envelopes</title><author>Glasner, S Ami ; Livne, E ; Steinberg, E ; Yalinewich, A ; Truran, James W</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c333t-51ea3db181accc66c53fc45db1da6c4fddf2aee0cbf56488601488f2876197393</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Glasner, S Ami</creatorcontrib><creatorcontrib>Livne, E</creatorcontrib><creatorcontrib>Steinberg, E</creatorcontrib><creatorcontrib>Yalinewich, A</creatorcontrib><creatorcontrib>Truran, James W</creatorcontrib><collection>CrossRef</collection><jtitle>Monthly notices of the Royal Astronomical Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Glasner, S Ami</au><au>Livne, E</au><au>Steinberg, E</au><au>Yalinewich, A</au><au>Truran, James W</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ignition of detonation in accreted helium envelopes</atitle><jtitle>Monthly notices of the Royal Astronomical Society</jtitle><date>2018-05-11</date><risdate>2018</risdate><volume>476</volume><issue>2</issue><spage>2238</spage><epage>2248</epage><pages>2238-2248</pages><issn>0035-8711</issn><eissn>1365-2966</eissn><abstract>Abstract Sub-Chandrasekhar CO white dwarfs accreting helium have been considered as candidates for Type Ia supernova (SNIa) progenitors since the early 1980s (helium shell mass &gt;0.1 M⊙). These models, once detonated, did not fit the observed spectra and light curve of typical SNIa observations. New theoretical work examined detonations on much less massive (&lt;0.05 M⊙) envelopes. They find stable detonations that lead to light curves, spectra, and abundances that compare relatively well with the observational data. The exact mechanism leading to the ignition of helium detonation is a key issue, since it is a mandatory first step for the whole scenario. As the flow of the accreted envelope is unstable to convection long before any hydrodynamic phenomena develops, a multidimensional approach is needed in order to study the ignition process. The complex convective reactive flow is challenging to any hydrodynamical solver. To the best of our knowledge, all previous 2D studies ignited the detonation artificially. We present here, for the first time, fully consistent results from two hydrodynamical 2D solvers that adopt two independent accurate schemes. For both solvers, an effort was made to overcome the problematics raised by the finite resolution and numerical diffusion by the advective terms. Our best models lead to the ignition of a detonation in a convective cell. Our results are robust and the agreement between the two different numerical approaches is very good.</abstract><pub>Oxford University Press</pub><doi>10.1093/mnras/sty421</doi><tpages>11</tpages></addata></record>
fulltext fulltext_linktorsrc
identifier ISSN: 0035-8711
ispartof Monthly notices of the Royal Astronomical Society, 2018-05, Vol.476 (2), p.2238-2248
issn 0035-8711
1365-2966
language eng
recordid cdi_crossref_primary_10_1093_mnras_sty421
source Oxford Journals Open Access Collection
title Ignition of detonation in accreted helium envelopes
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-06T03%3A28%3A24IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-oup_TOX&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Ignition%20of%20detonation%20in%20accreted%20helium%20envelopes&rft.jtitle=Monthly%20notices%20of%20the%20Royal%20Astronomical%20Society&rft.au=Glasner,%20S%20Ami&rft.date=2018-05-11&rft.volume=476&rft.issue=2&rft.spage=2238&rft.epage=2248&rft.pages=2238-2248&rft.issn=0035-8711&rft.eissn=1365-2966&rft_id=info:doi/10.1093/mnras/sty421&rft_dat=%3Coup_TOX%3E10.1093/mnras/sty421%3C/oup_TOX%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rft_oup_id=10.1093/mnras/sty421&rfr_iscdi=true