Characterizing the Rapid Hydrogen Disappearance in SN2022crv: Evidence of a Continuum between Type Ib and IIb Supernova Properties
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| Format: | Preprint |
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2023
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| author | Dong, Yize Valenti, Stefano Ashall, Chris Williamson, Marc Sand, David J. Van Dyk, Schuyler D. Filippenko, Alexei V. Jha, Saurabh W. Lundquist, Michael Modjaz, Maryam Andrews, Jennifer E. Jencson, Jacob E. Hosseinzadeh, Griffin Pearson, Jeniveve Kwok, Lindsey A. Boland, Teresa Hsiao, Eric Y. Smith, Nathan Elias-Rosa, Nancy Srivastav, Shubham Smartt, Stephen Fulton, Michael Zheng, WeiKang Brink, Thomas G. Shahbandeh, Melissa Bostroem, K. Azalee Hoang, Emily Janzen, Daryl Mehta, Darshana Meza, Nicolas Shrestha, Manisha Wyatt, Samuel Auchettl, Katie Burns, Christopher R. Farah, Joseph Galbany, L. Gonzalez, Estefania Padilla Haislip, Joshua Hinkle, Jason T. Howell, D. Andrew De Jaeger, Thomas Kouprianov, Vladimir Kumar, Sahana Lu, Jing McCully, Curtis Moran, Shane Morrell, Nidia Newsome, Megan Pellegrino, Craig Polin, Abigail Reichart, Daniel E. Shappee, B. J. Stritzinger, Maximilian D. Terreran, Giacomo Tucker, M. A. |
| author_facet | Dong, Yize Valenti, Stefano Ashall, Chris Williamson, Marc Sand, David J. Van Dyk, Schuyler D. Filippenko, Alexei V. Jha, Saurabh W. Lundquist, Michael Modjaz, Maryam Andrews, Jennifer E. Jencson, Jacob E. Hosseinzadeh, Griffin Pearson, Jeniveve Kwok, Lindsey A. Boland, Teresa Hsiao, Eric Y. Smith, Nathan Elias-Rosa, Nancy Srivastav, Shubham Smartt, Stephen Fulton, Michael Zheng, WeiKang Brink, Thomas G. Shahbandeh, Melissa Bostroem, K. Azalee Hoang, Emily Janzen, Daryl Mehta, Darshana Meza, Nicolas Shrestha, Manisha Wyatt, Samuel Auchettl, Katie Burns, Christopher R. Farah, Joseph Galbany, L. Gonzalez, Estefania Padilla Haislip, Joshua Hinkle, Jason T. Howell, D. Andrew De Jaeger, Thomas Kouprianov, Vladimir Kumar, Sahana Lu, Jing McCully, Curtis Moran, Shane Morrell, Nidia Newsome, Megan Pellegrino, Craig Polin, Abigail Reichart, Daniel E. Shappee, B. J. Stritzinger, Maximilian D. Terreran, Giacomo Tucker, M. A. |
| contents | We present optical and near-infrared observations of SN~2022crv, a stripped envelope supernova in NGC~3054, discovered within 12 hrs of explosion by the Distance Less Than 40 Mpc Survey. We suggest SN~2022crv is a transitional object on the continuum between SNe Ib and SNe IIb. A high-velocity hydrogen feature ($\sim$$-$20,000 -- $-$16,000 $\rm km\,s^{-1}$) was conspicuous in SN~2022crv at early phases, and then quickly disappeared around maximum light. By comparing with hydrodynamic modeling, we find that a hydrogen envelope of $\sim 10^{-3}$ \msun{} can reproduce the behaviour of the hydrogen feature observed in SN~2022crv. The early light curve of SN~2022crv did not show envelope cooling emission, implying that SN~2022crv had a compact progenitor with extremely low amount of hydrogen. The analysis of the nebular spectra shows that SN~2022crv is consistent with the explosion of a He star with a final mass of $\sim$4.5 -- 5.6 \msun{} that has evolved from a $\sim$16 -- 22 \msun{} zero-age main sequence star in a binary system with about 1.0 -- 1.7 \msun{} of oxygen finally synthesized in the core. The high metallicity at the supernova site indicates that the progenitor experienced a strong stellar wind mass loss. In order to retain a small amount of residual hydrogen at such a high metallicity, the initial orbital separation of the binary system is likely larger than $\sim$1000~$\rm R_{\odot}$. The near-infrared spectra of SN~2022crv show a unique absorption feature on the blue side of He I line at $\sim$1.005~$μ$m. This is the first time that such a feature has been observed in a Type Ib/IIb, and could be due to \ion{Sr}{2}. Further detailed modelling on SN~2022crv can shed light on the progenitor and the origin of the mysterious absorption feature in the near infrared. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2309_09433 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Characterizing the Rapid Hydrogen Disappearance in SN2022crv: Evidence of a Continuum between Type Ib and IIb Supernova Properties Dong, Yize Valenti, Stefano Ashall, Chris Williamson, Marc Sand, David J. Van Dyk, Schuyler D. Filippenko, Alexei V. Jha, Saurabh W. Lundquist, Michael Modjaz, Maryam Andrews, Jennifer E. Jencson, Jacob E. Hosseinzadeh, Griffin Pearson, Jeniveve Kwok, Lindsey A. Boland, Teresa Hsiao, Eric Y. Smith, Nathan Elias-Rosa, Nancy Srivastav, Shubham Smartt, Stephen Fulton, Michael Zheng, WeiKang Brink, Thomas G. Shahbandeh, Melissa Bostroem, K. Azalee Hoang, Emily Janzen, Daryl Mehta, Darshana Meza, Nicolas Shrestha, Manisha Wyatt, Samuel Auchettl, Katie Burns, Christopher R. Farah, Joseph Galbany, L. Gonzalez, Estefania Padilla Haislip, Joshua Hinkle, Jason T. Howell, D. Andrew De Jaeger, Thomas Kouprianov, Vladimir Kumar, Sahana Lu, Jing McCully, Curtis Moran, Shane Morrell, Nidia Newsome, Megan Pellegrino, Craig Polin, Abigail Reichart, Daniel E. Shappee, B. J. Stritzinger, Maximilian D. Terreran, Giacomo Tucker, M. A. High Energy Astrophysical Phenomena Solar and Stellar Astrophysics We present optical and near-infrared observations of SN~2022crv, a stripped envelope supernova in NGC~3054, discovered within 12 hrs of explosion by the Distance Less Than 40 Mpc Survey. We suggest SN~2022crv is a transitional object on the continuum between SNe Ib and SNe IIb. A high-velocity hydrogen feature ($\sim$$-$20,000 -- $-$16,000 $\rm km\,s^{-1}$) was conspicuous in SN~2022crv at early phases, and then quickly disappeared around maximum light. By comparing with hydrodynamic modeling, we find that a hydrogen envelope of $\sim 10^{-3}$ \msun{} can reproduce the behaviour of the hydrogen feature observed in SN~2022crv. The early light curve of SN~2022crv did not show envelope cooling emission, implying that SN~2022crv had a compact progenitor with extremely low amount of hydrogen. The analysis of the nebular spectra shows that SN~2022crv is consistent with the explosion of a He star with a final mass of $\sim$4.5 -- 5.6 \msun{} that has evolved from a $\sim$16 -- 22 \msun{} zero-age main sequence star in a binary system with about 1.0 -- 1.7 \msun{} of oxygen finally synthesized in the core. The high metallicity at the supernova site indicates that the progenitor experienced a strong stellar wind mass loss. In order to retain a small amount of residual hydrogen at such a high metallicity, the initial orbital separation of the binary system is likely larger than $\sim$1000~$\rm R_{\odot}$. The near-infrared spectra of SN~2022crv show a unique absorption feature on the blue side of He I line at $\sim$1.005~$μ$m. This is the first time that such a feature has been observed in a Type Ib/IIb, and could be due to \ion{Sr}{2}. Further detailed modelling on SN~2022crv can shed light on the progenitor and the origin of the mysterious absorption feature in the near infrared. |
| title | Characterizing the Rapid Hydrogen Disappearance in SN2022crv: Evidence of a Continuum between Type Ib and IIb Supernova Properties |
| topic | High Energy Astrophysical Phenomena Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2309.09433 |