SN 2022jox: An Extraordinarily Ordinary Type II SN with Flash Spectroscopy
We present high-cadence optical and ultraviolet (UV) observations of the Type II supernova (SN), SN 2022jox which exhibits early spectroscopic high-ionization flash features of H i , He ii , C iv , and N iv that disappear within the first few days after explosion. SN 2022jox was discovered by the Di...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2024-01-01
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| Series: | The Astrophysical Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-4357/ad2a49 |
| _version_ | 1827289027449978880 |
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| author | Jennifer E. Andrews Jeniveve Pearson Griffin Hosseinzadeh K. Azalee Bostroem Yize Dong Manisha Shrestha Jacob E. Jencson David J. Sand S. Valenti Emily Hoang Daryl Janzen M. J. Lundquist Nicolás Meza Samuel Wyatt Saurabh W. Jha Chris Simpson Joseph Farah Estefania Padilla Gonzalez D. Andrew Howell Curtis McCully Megan Newsome Craig Pellegrino Giacomo Terreran |
| author_facet | Jennifer E. Andrews Jeniveve Pearson Griffin Hosseinzadeh K. Azalee Bostroem Yize Dong Manisha Shrestha Jacob E. Jencson David J. Sand S. Valenti Emily Hoang Daryl Janzen M. J. Lundquist Nicolás Meza Samuel Wyatt Saurabh W. Jha Chris Simpson Joseph Farah Estefania Padilla Gonzalez D. Andrew Howell Curtis McCully Megan Newsome Craig Pellegrino Giacomo Terreran |
| author_sort | Jennifer E. Andrews |
| collection | DOAJ |
| description | We present high-cadence optical and ultraviolet (UV) observations of the Type II supernova (SN), SN 2022jox which exhibits early spectroscopic high-ionization flash features of H i , He ii , C iv , and N iv that disappear within the first few days after explosion. SN 2022jox was discovered by the Distance Less Than 40 Mpc survey ∼0.75 day after explosion with follow-up spectra and UV photometry obtained within minutes of discovery. The SN reached a peak brightness of M _V ∼ −17.3 mag, and has an estimated ^56 Ni mass of 0.04 M _⊙ , typical values for normal Type II SNe. The modeling of the early light curve and the strong flash signatures present in the optical spectra indicate interaction with circumstellar material (CSM) created from a progenitor with a mass-loss rate of $\dot{M}\sim {10}^{-3}{\textstyle {\unicode{x02013}}}{10}^{-2}\text{}{M}_{\odot }\,{{\rm{y}}{\rm{r}}}^{-1}$ . There may also be some indication of late-time CSM interaction in the form of an emission line blueward of H α seen in spectra around 200 days. The mass-loss rate of SN 2022jox is much higher than the values typically associated with quiescent mass loss from red supergiants, the known progenitors of Type II SNe, but is comparable to inferred values from similar core-collapse SNe with flash features, suggesting an eruptive event or a superwind in the progenitor in the months or years before explosion. |
| first_indexed | 2024-04-24T11:42:43Z |
| format | Article |
| id | doaj.art-6d3ae5504d7f40468d5a6685897f5dcb |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-04-24T11:42:43Z |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-6d3ae5504d7f40468d5a6685897f5dcb2024-04-09T18:15:24ZengIOP PublishingThe Astrophysical Journal1538-43572024-01-0196518510.3847/1538-4357/ad2a49SN 2022jox: An Extraordinarily Ordinary Type II SN with Flash SpectroscopyJennifer E. Andrews0https://orcid.org/0000-0003-0123-0062Jeniveve Pearson1https://orcid.org/0000-0002-0744-0047Griffin Hosseinzadeh2https://orcid.org/0000-0002-0832-2974K. Azalee Bostroem3https://orcid.org/0000-0002-4924-444XYize Dong4https://orcid.org/0000-0002-7937-6371Manisha Shrestha5https://orcid.org/0000-0002-4022-1874Jacob E. Jencson6https://orcid.org/0000-0001-5754-4007David J. Sand7https://orcid.org/0000-0003-4102-380XS. Valenti8https://orcid.org/0000-0001-8818-0795Emily Hoang9https://orcid.org/0000-0003-2744-4755Daryl Janzen10https://orcid.org/0000-0003-0549-3281M. J. Lundquist11https://orcid.org/0000-0001-9589-3793Nicolás Meza12https://orcid.org/0000-0002-7015-3446Samuel Wyatt13https://orcid.org/0000-0003-2732-4956Saurabh W. Jha14https://orcid.org/0000-0001-8738-6011Chris Simpson15https://orcid.org/0000-0001-8589-4055Joseph Farah16https://orcid.org/0000-0003-4914-5625Estefania Padilla Gonzalez17https://orcid.org/0000-0003-0209-9246D. Andrew Howell18https://orcid.org/0000-0003-4253-656XCurtis McCully19https://orcid.org/0000-0001-5807-7893Megan Newsome20https://orcid.org/0000-0001-9570-0584Craig Pellegrino21https://orcid.org/0000-0002-7472-1279Giacomo Terreran22https://orcid.org/0000-0003-0794-5982Gemini Observatory/NSF’s NOIRLab , 670 N. A’ohoku Place, Hilo, HI 96720, USASteward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USASteward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USASteward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USADepartment of Physics and Astronomy, University of California, Davis , 1 Shields Avenue, Davis, CA 95616-5270, USASteward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USADepartment of Physics and Astronomy, The Johns Hopkins University , 3400 North Charles Street, Baltimore, MD 21218, USASteward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USADepartment of Physics and Astronomy, University of California, Davis , 1 Shields Avenue, Davis, CA 95616-5270, USADepartment of Physics and Astronomy, University of California, Davis , 1 Shields Avenue, Davis, CA 95616-5270, USADepartment of Physics & Engineering Physics, University of Saskatchewan , 116 Science Place, Saskatoon, SK, S7N 5E2, CanadaW.M. Keck Observatory , 65-1120 Mamalahoa Highway, Kamuela, HI 96743, USADepartment of Physics and Astronomy, University of California, Davis , 1 Shields Avenue, Davis, CA 95616-5270, USADIRAC Institute, Department of Astronomy, University of Washington , 3910 15th Avenue NE, Seattle, WA 98195, USADepartment of Physics and Astronomy, Rutgers, the State University of New Jersey , 136 Frelinghuysen Road, Piscataway, NJ 08854-8019, USAGemini Observatory/NSF’s NOIRLab , 670 N. A’ohoku Place, Hilo, HI 96720, USALas Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California, Santa Barbara , Broida Hall, Santa Barbara, CA 93106-9530, USALas Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California, Santa Barbara , Broida Hall, Santa Barbara, CA 93106-9530, USALas Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California, Santa Barbara , Broida Hall, Santa Barbara, CA 93106-9530, USALas Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California, Santa Barbara , Broida Hall, Santa Barbara, CA 93106-9530, USALas Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California, Santa Barbara , Broida Hall, Santa Barbara, CA 93106-9530, USALas Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California, Santa Barbara , Broida Hall, Santa Barbara, CA 93106-9530, USALas Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California, Santa Barbara , Broida Hall, Santa Barbara, CA 93106-9530, USAWe present high-cadence optical and ultraviolet (UV) observations of the Type II supernova (SN), SN 2022jox which exhibits early spectroscopic high-ionization flash features of H i , He ii , C iv , and N iv that disappear within the first few days after explosion. SN 2022jox was discovered by the Distance Less Than 40 Mpc survey ∼0.75 day after explosion with follow-up spectra and UV photometry obtained within minutes of discovery. The SN reached a peak brightness of M _V ∼ −17.3 mag, and has an estimated ^56 Ni mass of 0.04 M _⊙ , typical values for normal Type II SNe. The modeling of the early light curve and the strong flash signatures present in the optical spectra indicate interaction with circumstellar material (CSM) created from a progenitor with a mass-loss rate of $\dot{M}\sim {10}^{-3}{\textstyle {\unicode{x02013}}}{10}^{-2}\text{}{M}_{\odot }\,{{\rm{y}}{\rm{r}}}^{-1}$ . There may also be some indication of late-time CSM interaction in the form of an emission line blueward of H α seen in spectra around 200 days. The mass-loss rate of SN 2022jox is much higher than the values typically associated with quiescent mass loss from red supergiants, the known progenitors of Type II SNe, but is comparable to inferred values from similar core-collapse SNe with flash features, suggesting an eruptive event or a superwind in the progenitor in the months or years before explosion.https://doi.org/10.3847/1538-4357/ad2a49Type II supernovaeCircumstellar matter |
| spellingShingle | Jennifer E. Andrews Jeniveve Pearson Griffin Hosseinzadeh K. Azalee Bostroem Yize Dong Manisha Shrestha Jacob E. Jencson David J. Sand S. Valenti Emily Hoang Daryl Janzen M. J. Lundquist Nicolás Meza Samuel Wyatt Saurabh W. Jha Chris Simpson Joseph Farah Estefania Padilla Gonzalez D. Andrew Howell Curtis McCully Megan Newsome Craig Pellegrino Giacomo Terreran SN 2022jox: An Extraordinarily Ordinary Type II SN with Flash Spectroscopy The Astrophysical Journal Type II supernovae Circumstellar matter |
| title | SN 2022jox: An Extraordinarily Ordinary Type II SN with Flash Spectroscopy |
| title_full | SN 2022jox: An Extraordinarily Ordinary Type II SN with Flash Spectroscopy |
| title_fullStr | SN 2022jox: An Extraordinarily Ordinary Type II SN with Flash Spectroscopy |
| title_full_unstemmed | SN 2022jox: An Extraordinarily Ordinary Type II SN with Flash Spectroscopy |
| title_short | SN 2022jox: An Extraordinarily Ordinary Type II SN with Flash Spectroscopy |
| title_sort | sn 2022jox an extraordinarily ordinary type ii sn with flash spectroscopy |
| topic | Type II supernovae Circumstellar matter |
| url | https://doi.org/10.3847/1538-4357/ad2a49 |
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