3D hydrodynamic simulations of white dwarf–main-sequence star collisions – I. Head-on collisions
Recently inaugurated telescopes, such as the MeerKAT radio telescope and the upcoming Rubin Observatory Legacy Survey of Space and Time, will be able to detect millions of transient events in the night sky. Stellar collisions between white dwarfs (WDs) and main-sequence (MS) stars may be detectable...
| Autores: | , , , , |
|---|---|
| Tipo de documento: | artigo |
| Data de publicação: | 2024 |
| País: | España |
| Recursos: | Universitat Politècnica de Catalunya (UPC) |
| Repositório: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglês |
| OAI Identifier: | oai:upcommons.upc.edu:2117/417784 |
| Acesso em linha: | https://hdl.handle.net/2117/417784 https://dx.doi.org/10.1093/mnras/stae2329 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Hydrodynamics Nuclear reactions Nucleosynthesis Abundances Binaries: general Stars: mass-loss Globular clusters: general Àrees temàtiques de la UPC::Física::Astronomia i astrofísica |
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3D hydrodynamic simulations of white dwarf–main-sequence star collisions – I. Head-on collisionsvan der Merwe, ChristianMohamed, ShazreneJosé Pont, Jordi|||0000-0002-9937-2685Shara, Michael|||0000-0003-0155-2539Kaminski, TomaszHydrodynamicsNuclear reactionsNucleosynthesisAbundancesBinaries: generalStars: mass-lossGlobular clusters: generalÀrees temàtiques de la UPC::Física::Astronomia i astrofísicaRecently inaugurated telescopes, such as the MeerKAT radio telescope and the upcoming Rubin Observatory Legacy Survey of Space and Time, will be able to detect millions of transient events in the night sky. Stellar collisions between white dwarfs (WDs) and main-sequence (MS) stars may be detectable among such transients. Simulations will play a key role in characterizing these events and selecting targets for follow-up. We present 3D smoothed particle hydrodynamics models of dynamical interactions between a 0,6M ¿WD and 0.3, 0.6, and 1,2 M ¿MS stars within globular cluster environments. Utilizing a 34-isotope nuclear network, we investigate the energetics, gas morphologies, and mass-loss properties of these collisions for different stellar mass ratios. Our models predict an overabundance of 13 C, 15 N, and 17 O isotopes relative to solar abundances. Moreover, we find that the time-scale of the collisions is too short and maximum temperatures too low for any significant hydrogen burning or triple-alpha reactions to occur. This combined with a negligible production of elements heavier than neon may be key signatures in distinguishing these events from other transient events with similar peak bolometric luminosities (¿~10^38 -10^41 ¿erg¿s^(-1) ¿).Oxford University Press20242024-11-0120242024-11-14journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/417784https://dx.doi.org/10.1093/mnras/stae2329reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/4177842026-05-27T15:37:01Z |
| dc.title.none.fl_str_mv |
3D hydrodynamic simulations of white dwarf–main-sequence star collisions – I. Head-on collisions |
| title |
3D hydrodynamic simulations of white dwarf–main-sequence star collisions – I. Head-on collisions |
| spellingShingle |
3D hydrodynamic simulations of white dwarf–main-sequence star collisions – I. Head-on collisions van der Merwe, Christian Hydrodynamics Nuclear reactions Nucleosynthesis Abundances Binaries: general Stars: mass-loss Globular clusters: general Àrees temàtiques de la UPC::Física::Astronomia i astrofísica |
| title_short |
3D hydrodynamic simulations of white dwarf–main-sequence star collisions – I. Head-on collisions |
| title_full |
3D hydrodynamic simulations of white dwarf–main-sequence star collisions – I. Head-on collisions |
| title_fullStr |
3D hydrodynamic simulations of white dwarf–main-sequence star collisions – I. Head-on collisions |
| title_full_unstemmed |
3D hydrodynamic simulations of white dwarf–main-sequence star collisions – I. Head-on collisions |
| title_sort |
3D hydrodynamic simulations of white dwarf–main-sequence star collisions – I. Head-on collisions |
| dc.creator.none.fl_str_mv |
van der Merwe, Christian Mohamed, Shazrene José Pont, Jordi|||0000-0002-9937-2685 Shara, Michael|||0000-0003-0155-2539 Kaminski, Tomasz |
| author |
van der Merwe, Christian |
| author_facet |
van der Merwe, Christian Mohamed, Shazrene José Pont, Jordi|||0000-0002-9937-2685 Shara, Michael|||0000-0003-0155-2539 Kaminski, Tomasz |
| author_role |
author |
| author2 |
Mohamed, Shazrene José Pont, Jordi|||0000-0002-9937-2685 Shara, Michael|||0000-0003-0155-2539 Kaminski, Tomasz |
| author2_role |
author author author author |
| dc.subject.none.fl_str_mv |
Hydrodynamics Nuclear reactions Nucleosynthesis Abundances Binaries: general Stars: mass-loss Globular clusters: general Àrees temàtiques de la UPC::Física::Astronomia i astrofísica |
| topic |
Hydrodynamics Nuclear reactions Nucleosynthesis Abundances Binaries: general Stars: mass-loss Globular clusters: general Àrees temàtiques de la UPC::Física::Astronomia i astrofísica |
| description |
Recently inaugurated telescopes, such as the MeerKAT radio telescope and the upcoming Rubin Observatory Legacy Survey of Space and Time, will be able to detect millions of transient events in the night sky. Stellar collisions between white dwarfs (WDs) and main-sequence (MS) stars may be detectable among such transients. Simulations will play a key role in characterizing these events and selecting targets for follow-up. We present 3D smoothed particle hydrodynamics models of dynamical interactions between a 0,6M ¿WD and 0.3, 0.6, and 1,2 M ¿MS stars within globular cluster environments. Utilizing a 34-isotope nuclear network, we investigate the energetics, gas morphologies, and mass-loss properties of these collisions for different stellar mass ratios. Our models predict an overabundance of 13 C, 15 N, and 17 O isotopes relative to solar abundances. Moreover, we find that the time-scale of the collisions is too short and maximum temperatures too low for any significant hydrogen burning or triple-alpha reactions to occur. This combined with a negligible production of elements heavier than neon may be key signatures in distinguishing these events from other transient events with similar peak bolometric luminosities (¿~10^38 -10^41 ¿erg¿s^(-1) ¿). |
| publishDate |
2024 |
| dc.date.none.fl_str_mv |
2024 2024-11-01 2024 2024-11-14 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 VoR http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/2117/417784 https://dx.doi.org/10.1093/mnras/stae2329 |
| url |
https://hdl.handle.net/2117/417784 https://dx.doi.org/10.1093/mnras/stae2329 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
Oxford University Press |
| publisher.none.fl_str_mv |
Oxford University Press |
| dc.source.none.fl_str_mv |
reponame:UPCommons. Portal del coneixement obert de la UPC instname:Universitat Politècnica de Catalunya (UPC) |
| instname_str |
Universitat Politècnica de Catalunya (UPC) |
| reponame_str |
UPCommons. Portal del coneixement obert de la UPC |
| collection |
UPCommons. Portal del coneixement obert de la UPC |
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| repository.mail.fl_str_mv |
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1869420893037395968 |
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15.811543 |