A JWST Near- and Mid-Infrared Nebular Spectrum of the Type Ia Supernova 2021aefx
We present JWST near- and mid-infrared spectroscopic observations of the nearby normal Type Ia supernova SN 2021aefx in the nebular phase at \(+255\) days past maximum light. Our Near Infrared Spectrograph (NIRSpec) and Mid Infrared Instrument (MIRI) observations, combined with ground-based optical...
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| creator | Kwok, Lindsey A Jha, Saurabh W Temim, Tea Fox, Ori D Larison, Conor Camacho-Neves, Yssavo Brenner Newman, Max J Pierel, Justin D R Foley, Ryan J Andrews, Jennifer E Badenes, Carles Barna, Barnabas Bostroem, K Azalee Deckers, Maxime Flors, Andreas Garnavich, Peter Graham, Melissa L Or Graur Griffin Hosseinzadeh Howell, D Andrew Hughes, John P Johansson, Joel Kendrew, Sarah Kerzendorf, Wolfgang E Maeda, Keiichi Maguire, Kate McCully, Curtis O'Brien, John T Rest, Armin Sand, David J Shahbandeh, Melissa Louis-Gregory Strolger Szalai, Tamas Ashall, Chris Baron, E Burns, Chris R DerKacy, James M Tyco Mera Evans Fisher, Alec Galbany, Lluis Hoeflich, Peter Hsiao, Eric de Jaeger, Thomas Karamehmetoglu, Emir Krisciunas, Kevin Kumar, Sahana Lu, Jing Maund, Justyn Mazzali, Paolo A Medler, Kyle Morrell, Nidia Phillips, Mark M Shappee, Benjamin J Stritzinger, Maximilian Suntzeff, Nicholas Telesco, Charles Tucker, Michael Wang, Lifan |
| description | We present JWST near- and mid-infrared spectroscopic observations of the nearby normal Type Ia supernova SN 2021aefx in the nebular phase at \(+255\) days past maximum light. Our Near Infrared Spectrograph (NIRSpec) and Mid Infrared Instrument (MIRI) observations, combined with ground-based optical data from the South African Large Telescope (SALT), constitute the first complete optical \(+\) NIR \(+\) MIR nebular SN Ia spectrum covering 0.3\(-\)14 \(\mu\)m. This spectrum unveils the previously unobserved 2.5\(-\)5 \(\mu\)m region, revealing strong nebular iron and stable nickel emission, indicative of high-density burning that can constrain the progenitor mass. The data show a significant improvement in sensitivity and resolution compared to previous Spitzer MIR data. We identify numerous NIR and MIR nebular emission lines from iron-group elements and as well as lines from the intermediate-mass element argon. The argon lines extend to higher velocities than the iron-group elements, suggesting stratified ejecta that are a hallmark of delayed-detonation or double-detonation SN Ia models. We present fits to simple geometric line profiles to features beyond 1.2 \(\mu\)m and find that most lines are consistent with Gaussian or spherical emission distributions, while the [Ar III] 8.99 \(\mu\)m line has a distinctively flat-topped profile indicating a thick spherical shell of emission. Using our line profile fits, we investigate the emissivity structure of SN 2021aefx and measure kinematic properties. Continued observations of SN 2021aefx and other SNe Ia with JWST will be transformative to the study of SN Ia composition, ionization structure, density, and temperature, and will provide important constraints on SN Ia progenitor and explosion models. |
| doi_str_mv | 10.48550/arxiv.2211.00038 |
| format | Article |
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Our Near Infrared Spectrograph (NIRSpec) and Mid Infrared Instrument (MIRI) observations, combined with ground-based optical data from the South African Large Telescope (SALT), constitute the first complete optical \(+\) NIR \(+\) MIR nebular SN Ia spectrum covering 0.3\(-\)14 \(\mu\)m. This spectrum unveils the previously unobserved 2.5\(-\)5 \(\mu\)m region, revealing strong nebular iron and stable nickel emission, indicative of high-density burning that can constrain the progenitor mass. The data show a significant improvement in sensitivity and resolution compared to previous Spitzer MIR data. We identify numerous NIR and MIR nebular emission lines from iron-group elements and as well as lines from the intermediate-mass element argon. The argon lines extend to higher velocities than the iron-group elements, suggesting stratified ejecta that are a hallmark of delayed-detonation or double-detonation SN Ia models. We present fits to simple geometric line profiles to features beyond 1.2 \(\mu\)m and find that most lines are consistent with Gaussian or spherical emission distributions, while the [Ar III] 8.99 \(\mu\)m line has a distinctively flat-topped profile indicating a thick spherical shell of emission. Using our line profile fits, we investigate the emissivity structure of SN 2021aefx and measure kinematic properties. Continued observations of SN 2021aefx and other SNe Ia with JWST will be transformative to the study of SN Ia composition, ionization structure, density, and temperature, and will provide important constraints on SN Ia progenitor and explosion models.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.2211.00038</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Argon ; Density ; Detonation ; Ejecta ; Emission analysis ; Ground-based observation ; Infrared instruments ; Infrared spectra ; Iron ; James Webb Space Telescope ; Kinematics ; M region ; Near infrared radiation ; Physics - High Energy Astrophysical Phenomena ; Physics - Solar and Stellar Astrophysics ; Spherical shells</subject><ispartof>arXiv.org, 2023-02</ispartof><rights>2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). 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Our Near Infrared Spectrograph (NIRSpec) and Mid Infrared Instrument (MIRI) observations, combined with ground-based optical data from the South African Large Telescope (SALT), constitute the first complete optical \(+\) NIR \(+\) MIR nebular SN Ia spectrum covering 0.3\(-\)14 \(\mu\)m. This spectrum unveils the previously unobserved 2.5\(-\)5 \(\mu\)m region, revealing strong nebular iron and stable nickel emission, indicative of high-density burning that can constrain the progenitor mass. The data show a significant improvement in sensitivity and resolution compared to previous Spitzer MIR data. We identify numerous NIR and MIR nebular emission lines from iron-group elements and as well as lines from the intermediate-mass element argon. The argon lines extend to higher velocities than the iron-group elements, suggesting stratified ejecta that are a hallmark of delayed-detonation or double-detonation SN Ia models. We present fits to simple geometric line profiles to features beyond 1.2 \(\mu\)m and find that most lines are consistent with Gaussian or spherical emission distributions, while the [Ar III] 8.99 \(\mu\)m line has a distinctively flat-topped profile indicating a thick spherical shell of emission. Using our line profile fits, we investigate the emissivity structure of SN 2021aefx and measure kinematic properties. Continued observations of SN 2021aefx and other SNe Ia with JWST will be transformative to the study of SN Ia composition, ionization structure, density, and temperature, and will provide important constraints on SN Ia progenitor and explosion models.</description><subject>Argon</subject><subject>Density</subject><subject>Detonation</subject><subject>Ejecta</subject><subject>Emission analysis</subject><subject>Ground-based observation</subject><subject>Infrared instruments</subject><subject>Infrared spectra</subject><subject>Iron</subject><subject>James Webb Space Telescope</subject><subject>Kinematics</subject><subject>M region</subject><subject>Near infrared radiation</subject><subject>Physics - High Energy Astrophysical Phenomena</subject><subject>Physics - Solar and Stellar Astrophysics</subject><subject>Spherical 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Wolfgang E ; Maeda, Keiichi ; Maguire, Kate ; McCully, Curtis ; O'Brien, John T ; Rest, Armin ; Sand, David J ; Shahbandeh, Melissa ; Louis-Gregory Strolger ; Szalai, Tamas ; Ashall, Chris ; Baron, E ; Burns, Chris R ; DerKacy, James M ; Tyco Mera Evans ; Fisher, Alec ; Galbany, Lluis ; Hoeflich, Peter ; Hsiao, Eric ; de Jaeger, Thomas ; Karamehmetoglu, Emir ; Krisciunas, Kevin ; Kumar, Sahana ; Lu, Jing ; Maund, Justyn ; Mazzali, Paolo A ; Medler, Kyle ; Morrell, Nidia ; Phillips, Mark M ; Shappee, Benjamin J ; Stritzinger, Maximilian ; Suntzeff, Nicholas ; Telesco, Charles ; Tucker, Michael ; Wang, Lifan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a958-12d3ab7a3e2e144f1cdde89c42806db4e6145a9bbdb45d51dc0853d77abc9ff33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Argon</topic><topic>Density</topic><topic>Detonation</topic><topic>Ejecta</topic><topic>Emission 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M</creatorcontrib><creatorcontrib>Shappee, Benjamin J</creatorcontrib><creatorcontrib>Stritzinger, Maximilian</creatorcontrib><creatorcontrib>Suntzeff, Nicholas</creatorcontrib><creatorcontrib>Telesco, Charles</creatorcontrib><creatorcontrib>Tucker, Michael</creatorcontrib><creatorcontrib>Wang, Lifan</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>arXiv.org</collection><jtitle>arXiv.org</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kwok, Lindsey A</au><au>Jha, Saurabh W</au><au>Temim, Tea</au><au>Fox, Ori D</au><au>Larison, Conor</au><au>Camacho-Neves, Yssavo</au><au>Brenner Newman, Max J</au><au>Pierel, Justin D R</au><au>Foley, Ryan J</au><au>Andrews, Jennifer E</au><au>Badenes, Carles</au><au>Barna, Barnabas</au><au>Bostroem, K Azalee</au><au>Deckers, Maxime</au><au>Flors, Andreas</au><au>Garnavich, Peter</au><au>Graham, Melissa L</au><au>Or Graur</au><au>Griffin Hosseinzadeh</au><au>Howell, D Andrew</au><au>Hughes, John P</au><au>Johansson, Joel</au><au>Kendrew, Sarah</au><au>Kerzendorf, Wolfgang E</au><au>Maeda, Keiichi</au><au>Maguire, Kate</au><au>McCully, Curtis</au><au>O'Brien, John T</au><au>Rest, Armin</au><au>Sand, David J</au><au>Shahbandeh, Melissa</au><au>Louis-Gregory Strolger</au><au>Szalai, Tamas</au><au>Ashall, Chris</au><au>Baron, E</au><au>Burns, Chris R</au><au>DerKacy, James M</au><au>Tyco Mera Evans</au><au>Fisher, Alec</au><au>Galbany, Lluis</au><au>Hoeflich, Peter</au><au>Hsiao, Eric</au><au>de Jaeger, Thomas</au><au>Karamehmetoglu, Emir</au><au>Krisciunas, Kevin</au><au>Kumar, Sahana</au><au>Lu, Jing</au><au>Maund, Justyn</au><au>Mazzali, Paolo A</au><au>Medler, Kyle</au><au>Morrell, Nidia</au><au>Phillips, Mark M</au><au>Shappee, Benjamin J</au><au>Stritzinger, Maximilian</au><au>Suntzeff, Nicholas</au><au>Telesco, Charles</au><au>Tucker, Michael</au><au>Wang, Lifan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A JWST Near- and Mid-Infrared Nebular Spectrum of the Type Ia Supernova 2021aefx</atitle><jtitle>arXiv.org</jtitle><date>2023-02-10</date><risdate>2023</risdate><eissn>2331-8422</eissn><abstract>We present JWST near- and mid-infrared spectroscopic observations of the nearby normal Type Ia supernova SN 2021aefx in the nebular phase at \(+255\) days past maximum light. Our Near Infrared Spectrograph (NIRSpec) and Mid Infrared Instrument (MIRI) observations, combined with ground-based optical data from the South African Large Telescope (SALT), constitute the first complete optical \(+\) NIR \(+\) MIR nebular SN Ia spectrum covering 0.3\(-\)14 \(\mu\)m. This spectrum unveils the previously unobserved 2.5\(-\)5 \(\mu\)m region, revealing strong nebular iron and stable nickel emission, indicative of high-density burning that can constrain the progenitor mass. The data show a significant improvement in sensitivity and resolution compared to previous Spitzer MIR data. We identify numerous NIR and MIR nebular emission lines from iron-group elements and as well as lines from the intermediate-mass element argon. The argon lines extend to higher velocities than the iron-group elements, suggesting stratified ejecta that are a hallmark of delayed-detonation or double-detonation SN Ia models. We present fits to simple geometric line profiles to features beyond 1.2 \(\mu\)m and find that most lines are consistent with Gaussian or spherical emission distributions, while the [Ar III] 8.99 \(\mu\)m line has a distinctively flat-topped profile indicating a thick spherical shell of emission. Using our line profile fits, we investigate the emissivity structure of SN 2021aefx and measure kinematic properties. Continued observations of SN 2021aefx and other SNe Ia with JWST will be transformative to the study of SN Ia composition, ionization structure, density, and temperature, and will provide important constraints on SN Ia progenitor and explosion models.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.2211.00038</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | EISSN: 2331-8422 |
| ispartof | arXiv.org, 2023-02 |
| issn | 2331-8422 |
| language | eng |
| recordid | cdi_arxiv_primary_2211_00038 |
| source | arXiv.org; Free E- Journals |
| subjects | Argon Density Detonation Ejecta Emission analysis Ground-based observation Infrared instruments Infrared spectra Iron James Webb Space Telescope Kinematics M region Near infrared radiation Physics - High Energy Astrophysical Phenomena Physics - Solar and Stellar Astrophysics Spherical shells |
| title | A JWST Near- and Mid-Infrared Nebular Spectrum of the Type Ia Supernova 2021aefx |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-06T02%3A07%3A11IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_arxiv&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=A%20JWST%20Near-%20and%20Mid-Infrared%20Nebular%20Spectrum%20of%20the%20Type%20Ia%20Supernova%202021aefx&rft.jtitle=arXiv.org&rft.au=Kwok,%20Lindsey%20A&rft.date=2023-02-10&rft.eissn=2331-8422&rft_id=info:doi/10.48550/arxiv.2211.00038&rft_dat=%3Cproquest_arxiv%3E2731285797%3C/proquest_arxiv%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2731285797&rft_id=info:pmid/&rfr_iscdi=true |