SN 2020pvb: a Type IIn-P supernova with a precursor outburst
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2024
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| author | Elias-Rosa, Nancy Brennan, Seán J. Benetti, Stefano Cappellaro, Enrico Pastorello, Andrea Kozyreva, Alexandra Lundqvist, Peter Fraser, Morgan Anderso, Joseph P. Cai, Yong-Zhi Chen, Ting-Wan Dennefeld, Michel Gromadzki, Mariusz Gutiérrez, Claudia P. Ihanec, Nada Inserra, Cosimo Kankare, Erkki Kotak, Rubina Mattila, Seppo Moran, Shane Müller-Bravo, Tomás E. Pessi, Priscila J. Pignata, Giuliano Reguitti, Andrea Reynolds, Thomas M. Smartt, Stephen J. Smith, Ken Tartaglia, Leonardo Valerin, Giorgio de Boer, Thomas Chambers, Kenneth Gal-Yam, Avishay Gao, Hua Geier, Stefan Mazzali, Paolo A. Nicholl, Matt Ragosta, Fabio Rest, Armin Yaron, Ofer Young, David R. |
| author_facet | Elias-Rosa, Nancy Brennan, Seán J. Benetti, Stefano Cappellaro, Enrico Pastorello, Andrea Kozyreva, Alexandra Lundqvist, Peter Fraser, Morgan Anderso, Joseph P. Cai, Yong-Zhi Chen, Ting-Wan Dennefeld, Michel Gromadzki, Mariusz Gutiérrez, Claudia P. Ihanec, Nada Inserra, Cosimo Kankare, Erkki Kotak, Rubina Mattila, Seppo Moran, Shane Müller-Bravo, Tomás E. Pessi, Priscila J. Pignata, Giuliano Reguitti, Andrea Reynolds, Thomas M. Smartt, Stephen J. Smith, Ken Tartaglia, Leonardo Valerin, Giorgio de Boer, Thomas Chambers, Kenneth Gal-Yam, Avishay Gao, Hua Geier, Stefan Mazzali, Paolo A. Nicholl, Matt Ragosta, Fabio Rest, Armin Yaron, Ofer Young, David R. |
| contents | We present photometric and spectroscopic data sets for SN 2020pvb, a Type IIn-P supernova (SN) similar to SNe 1994W, 2005cl, 2009kn and 2011ht, with a precursor outburst detected (PS1 w-band ~ -13.8 mag) around four months before the B-band maximum light. SN 2020pvb presents a relatively bright light curve peaking at M_B = -17.95 +- 0.30 mag and a plateau lasting at least 40 days before it went in solar conjunction. After this, the object is no longer visible at phases > 150 days above -12.5 mag in the B-band, suggesting that the SN 2020pvb ejecta interacts with a dense spatially confined circumstellar envelope. SN 2020pvb shows in its spectra strong Balmer lines and a forest of FeII lines with narrow P Cygni profiles. Using archival images from the Hubble Space Telescope, we constrain the progenitor of SN 2020pvb to have a luminosity of log(L/L_sun) <= 5.4, ruling out any single star progenitor over 50 M_sun. All in all, SN 2020pvb is a Type IIn-P whose progenitor star had an outburst ~ 0.5 yr before the final explosion, the material lost during this outburst is probably playing a role in shaping the physical properties of the supernova. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_02924 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | SN 2020pvb: a Type IIn-P supernova with a precursor outburst Elias-Rosa, Nancy Brennan, Seán J. Benetti, Stefano Cappellaro, Enrico Pastorello, Andrea Kozyreva, Alexandra Lundqvist, Peter Fraser, Morgan Anderso, Joseph P. Cai, Yong-Zhi Chen, Ting-Wan Dennefeld, Michel Gromadzki, Mariusz Gutiérrez, Claudia P. Ihanec, Nada Inserra, Cosimo Kankare, Erkki Kotak, Rubina Mattila, Seppo Moran, Shane Müller-Bravo, Tomás E. Pessi, Priscila J. Pignata, Giuliano Reguitti, Andrea Reynolds, Thomas M. Smartt, Stephen J. Smith, Ken Tartaglia, Leonardo Valerin, Giorgio de Boer, Thomas Chambers, Kenneth Gal-Yam, Avishay Gao, Hua Geier, Stefan Mazzali, Paolo A. Nicholl, Matt Ragosta, Fabio Rest, Armin Yaron, Ofer Young, David R. Solar and Stellar Astrophysics High Energy Astrophysical Phenomena We present photometric and spectroscopic data sets for SN 2020pvb, a Type IIn-P supernova (SN) similar to SNe 1994W, 2005cl, 2009kn and 2011ht, with a precursor outburst detected (PS1 w-band ~ -13.8 mag) around four months before the B-band maximum light. SN 2020pvb presents a relatively bright light curve peaking at M_B = -17.95 +- 0.30 mag and a plateau lasting at least 40 days before it went in solar conjunction. After this, the object is no longer visible at phases > 150 days above -12.5 mag in the B-band, suggesting that the SN 2020pvb ejecta interacts with a dense spatially confined circumstellar envelope. SN 2020pvb shows in its spectra strong Balmer lines and a forest of FeII lines with narrow P Cygni profiles. Using archival images from the Hubble Space Telescope, we constrain the progenitor of SN 2020pvb to have a luminosity of log(L/L_sun) <= 5.4, ruling out any single star progenitor over 50 M_sun. All in all, SN 2020pvb is a Type IIn-P whose progenitor star had an outburst ~ 0.5 yr before the final explosion, the material lost during this outburst is probably playing a role in shaping the physical properties of the supernova. |
| title | SN 2020pvb: a Type IIn-P supernova with a precursor outburst |
| topic | Solar and Stellar Astrophysics High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2402.02924 |