Using $^{44}$Ti Emission to Differentiate Between Thermonuclear Supernova Progenitors
| Title: | Using $^{44}$Ti Emission to Differentiate Between Thermonuclear Supernova Progenitors |
|---|---|
| Authors: | Kosakowski, Daniel, Ugalino, Mark Ivan, Fisher, Robert, Graur, Or, Bobrick, Alexey, Perets, Hagai B. |
| Publication Year: | 2022 |
| Collection: | Astrophysics |
| Subject Terms: | Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Solar and Stellar Astrophysics |
| More Details: | The radiosotope $^{44}$Ti is produced through $\alpha$-rich freezeout and explosive helium burning in type Ia supernovae (SNe Ia). In this paper, we discuss how the detection of $^{44}$Ti, either through late-time light curves of SNe Ia, or directly via gamma rays, can uniquely constrain the origin of SNe Ia. In particular, building upon recent advances in the hydrodynamical simulation of helium-ignited double white dwarf binaries, we demonstrate that the detection of $^{44}$Ti in a nearby SN Ia or in a young galactic supernova remnant (SNR) can discriminate between the double-detonation and double-degenerate channels of sub-Chandrasekhar (sub-$M_{\rm Ch}$) and near-Chandrasekhar (near-$M_{\rm Ch}$) SNe Ia. In addition, we predict that the late-time light curves of calcium-rich transients are entirely dominated by $^{44}$Ti. |
| Document Type: | Working Paper |
| DOI: | 10.1093/mnrasl/slac152 |
| Access URL: | http://arxiv.org/abs/2210.10804 |
| Accession Number: | edsarx.2210.10804 |
| Database: | arXiv |
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| Items | – Name: Title Label: Title Group: Ti Data: Using $^{44}$Ti Emission to Differentiate Between Thermonuclear Supernova Progenitors – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kosakowski%2C+Daniel%22">Kosakowski, Daniel</searchLink><br /><searchLink fieldCode="AR" term="%22Ugalino%2C+Mark+Ivan%22">Ugalino, Mark Ivan</searchLink><br /><searchLink fieldCode="AR" term="%22Fisher%2C+Robert%22">Fisher, Robert</searchLink><br /><searchLink fieldCode="AR" term="%22Graur%2C+Or%22">Graur, Or</searchLink><br /><searchLink fieldCode="AR" term="%22Bobrick%2C+Alexey%22">Bobrick, Alexey</searchLink><br /><searchLink fieldCode="AR" term="%22Perets%2C+Hagai+B%2E%22">Perets, Hagai B.</searchLink> – Name: DatePubCY Label: Publication Year Group: Date Data: 2022 – Name: Subset Label: Collection Group: HoldingsInfo Data: Astrophysics – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Astrophysics+-+High+Energy+Astrophysical+Phenomena%22">Astrophysics - High Energy Astrophysical Phenomena</searchLink><br /><searchLink fieldCode="DE" term="%22Astrophysics+-+Solar+and+Stellar+Astrophysics%22">Astrophysics - Solar and Stellar Astrophysics</searchLink> – Name: Abstract Label: Description Group: Ab Data: The radiosotope $^{44}$Ti is produced through $\alpha$-rich freezeout and explosive helium burning in type Ia supernovae (SNe Ia). In this paper, we discuss how the detection of $^{44}$Ti, either through late-time light curves of SNe Ia, or directly via gamma rays, can uniquely constrain the origin of SNe Ia. In particular, building upon recent advances in the hydrodynamical simulation of helium-ignited double white dwarf binaries, we demonstrate that the detection of $^{44}$Ti in a nearby SN Ia or in a young galactic supernova remnant (SNR) can discriminate between the double-detonation and double-degenerate channels of sub-Chandrasekhar (sub-$M_{\rm Ch}$) and near-Chandrasekhar (near-$M_{\rm Ch}$) SNe Ia. In addition, we predict that the late-time light curves of calcium-rich transients are entirely dominated by $^{44}$Ti. – Name: TypeDocument Label: Document Type Group: TypDoc Data: Working Paper – Name: DOI Label: DOI Group: ID Data: 10.1093/mnrasl/slac152 – Name: URL Label: Access URL Group: URL Data: <link linkTarget="URL" linkTerm="http://arxiv.org/abs/2210.10804" linkWindow="_blank">http://arxiv.org/abs/2210.10804</link> – Name: AN Label: Accession Number Group: ID Data: edsarx.2210.10804 |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1093/mnrasl/slac152 Subjects: – SubjectFull: Astrophysics - High Energy Astrophysical Phenomena Type: general – SubjectFull: Astrophysics - Solar and Stellar Astrophysics Type: general Titles: – TitleFull: Using $^{44}$Ti Emission to Differentiate Between Thermonuclear Supernova Progenitors Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kosakowski, Daniel – PersonEntity: Name: NameFull: Ugalino, Mark Ivan – PersonEntity: Name: NameFull: Fisher, Robert – PersonEntity: Name: NameFull: Graur, Or – PersonEntity: Name: NameFull: Bobrick, Alexey – PersonEntity: Name: NameFull: Perets, Hagai B. IsPartOfRelationships: – BibEntity: Dates: – D: 19 M: 10 Type: published Y: 2022 |
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