The Astrophysical Journal (Jan 2025)
Luminous Type II Short-plateau SN 2023ufx: Asymmetric Explosion of a Partially Stripped Massive Progenitor
- Aravind P. Ravi,
- Stefano Valenti,
- Yize Dong,
- Daichi Hiramatsu,
- Stan Barmentloo,
- Anders Jerkstrand,
- K. Azalee Bostroem,
- Jeniveve Pearson,
- Manisha Shrestha,
- Jennifer E. Andrews,
- David J. Sand,
- Griffin Hosseinzadeh,
- Michael Lundquist,
- Emily Hoang,
- Darshana Mehta,
- Nicolás Meza Retamal,
- Aidan Martas,
- Saurabh W. Jha,
- Daryl Janzen,
- Bhagya Subrayan,
- D. Andrew Howell,
- Curtis McCully,
- Joseph Farah,
- Megan Newsome,
- Estefania Padilla Gonzalez,
- Giacomo Terreran,
- Moira Andrews,
- Alexei V. Filippenko,
- Thomas G. Brink,
- Weikang Zheng,
- Yi Yang,
- Jozsef Vinkó,
- J. Craig Wheeler,
- Nathan Smith,
- Jeonghee Rho,
- Réka Könyves-Tóth,
- Claudia P. Gutiérrez
Affiliations
- Aravind P. Ravi
- ORCiD
- Department of Physics and Astronomy, University of California , 1 Shields Avenue, Davis, CA 95616-5270, USA ; apazhayathravi@ucdavis.edu
- Stefano Valenti
- ORCiD
- Department of Physics and Astronomy, University of California , 1 Shields Avenue, Davis, CA 95616-5270, USA ; apazhayathravi@ucdavis.edu
- Yize Dong
- ORCiD
- Department of Physics and Astronomy, University of California , 1 Shields Avenue, Davis, CA 95616-5270, USA ; apazhayathravi@ucdavis.edu; Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138-1516, USA
- Daichi Hiramatsu
- ORCiD
- Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138-1516, USA; The NSF AI Institute for Artificial Intelligence and Fundamental Interactions , USA
- Stan Barmentloo
- ORCiD
- The Oskar Klein Centre, Department of Astronomy, Stockholm University , AlbaNova, SE-10691 Stockholm, Sweden
- Anders Jerkstrand
- ORCiD
- The Oskar Klein Centre, Department of Astronomy, Stockholm University , AlbaNova, SE-10691 Stockholm, Sweden
- K. Azalee Bostroem
- ORCiD
- Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA
- Jeniveve Pearson
- ORCiD
- Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA
- Manisha Shrestha
- ORCiD
- Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA
- Jennifer E. Andrews
- ORCiD
- Gemini Observatory , 670 North A‘ohoku Place, Hilo, HI 96720-2700, USA
- David J. Sand
- ORCiD
- Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA
- Griffin Hosseinzadeh
- ORCiD
- Department of Astronomy & Astrophysics, University of California , San Diego, 9500 Gilman Drive, MC 0424, La Jolla, CA 92093-0424, USA
- Michael Lundquist
- ORCiD
- W. M. Keck Observatory , 65-1120 Māmalahoa Highway, Kamuela, HI 96743-8431, USA
- Emily Hoang
- ORCiD
- Department of Physics and Astronomy, University of California , 1 Shields Avenue, Davis, CA 95616-5270, USA ; apazhayathravi@ucdavis.edu
- Darshana Mehta
- ORCiD
- Department of Physics and Astronomy, University of California , 1 Shields Avenue, Davis, CA 95616-5270, USA ; apazhayathravi@ucdavis.edu
- Nicolás Meza Retamal
- ORCiD
- Department of Physics and Astronomy, University of California , 1 Shields Avenue, Davis, CA 95616-5270, USA ; apazhayathravi@ucdavis.edu
- Aidan Martas
- ORCiD
- Department of Physics and Astronomy, University of California , 1 Shields Avenue, Davis, CA 95616-5270, USA ; apazhayathravi@ucdavis.edu; Department of Astronomy, University of California , Berkeley, CA 94720-3411, USA
- Saurabh W. Jha
- ORCiD
- Department of Physics and Astronomy, Rutgers, the State University of New Jersey , 136 Frelinghuysen Road, Piscataway, NJ 08854-8019, USA
- Daryl Janzen
- ORCiD
- Department of Physics & Engineering Physics, University of Saskatchewan , 116 Science Place, Saskatoon, SK S7N 5E2, Canada
- Bhagya Subrayan
- ORCiD
- Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA
- D. Andrew Howell
- ORCiD
- Las Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California , Santa Barbara, CA 93106-9530, USA
- Curtis McCully
- ORCiD
- Las Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA
- Joseph Farah
- ORCiD
- Las Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California , Santa Barbara, CA 93106-9530, USA
- Megan Newsome
- ORCiD
- Las Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California , Santa Barbara, CA 93106-9530, USA
- Estefania Padilla Gonzalez
- ORCiD
- Las Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California , Santa Barbara, CA 93106-9530, USA
- Giacomo Terreran
- ORCiD
- Las Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California , Santa Barbara, CA 93106-9530, USA
- Moira Andrews
- ORCiD
- Las Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California , Santa Barbara, CA 93106-9530, USA
- Alexei V. Filippenko
- ORCiD
- Department of Astronomy, University of California , Berkeley, CA 94720-3411, USA
- Thomas G. Brink
- ORCiD
- Department of Astronomy, University of California , Berkeley, CA 94720-3411, USA
- Weikang Zheng
- ORCiD
- Department of Astronomy, University of California , Berkeley, CA 94720-3411, USA
- Yi Yang
- ORCiD
- Department of Astronomy, University of California , Berkeley, CA 94720-3411, USA
- Jozsef Vinkó
- ORCiD
- CSFK Konkoly Observatory , Konkoly-Thege M. ut 15-17, Budapest, 1121, Hungary; Department of Optics and Quantum Electronics, University of Szeged , Dóm tér 9, Szeged, 6720, Hungary; ELTE Eötvös Loránd University , Institute of Physics, Pázmany Péter sétány 1/A, Budapest, 1117, Hungary; University of Texas at Austin , 1 University Station C1400, Austin, TX 78712-0259, USA
- J. Craig Wheeler
- ORCiD
- University of Texas at Austin , 1 University Station C1400, Austin, TX 78712-0259, USA
- Nathan Smith
- ORCiD
- Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA
- Jeonghee Rho
- ORCiD
- SETI Institute , 189 Bernardo Avenue, Suite 200, Mountain View, CA 94043, USA
- Réka Könyves-Tóth
- ORCiD
- CSFK Konkoly Observatory , Konkoly-Thege M. ut 15-17, Budapest, 1121, Hungary
- Claudia P. Gutiérrez
- ORCiD
- Institut d’Estudis Espacials de Catalunya (IEEC) , Edifici RDIT, Campus UPC, 08860 Castelldefels (Barcelona), Spain; Institute of Space Sciences (ICE, CSIC) , Campus UAB, Carrerde Can Magrans, s/n, E-08193 Barcelona, Spain
- DOI
- https://doi.org/10.3847/1538-4357/adb0bb
- Journal volume & issue
-
Vol. 982,
no. 1
p. 12
Abstract
We present supernova (SN) 2023ufx, a unique Type IIP SN with the shortest known plateau duration ( t _PT ∼ 47 days), a luminous V -band peak ( M _V = −18.42 ± 0.08 mag), and a rapid early decline rate ( s 1 = 3.47 ± 0.09 mag (50 days) ^−1 ). By comparing observed photometry to a hydrodynamic MESA+STELLA model grid, we constrain the progenitor to be a massive red supergiant with M _ZAMS ∼ 19–25 M _⊙ . Independent comparisons with nebular spectral models also suggest an initial He-core mass of ∼6 M _⊙ , and thus a massive progenitor. For a Type IIP, SN 2023ufx produced an unusually high amount of nickel ( ^56 Ni) ∼0.14 ± 0.02 M _⊙ , during the explosion. We find that the short plateau duration in SN 2023ufx can be explained with the presence of a small hydrogen envelope ( ${M}_{{{\rm{H}}}_{\mathrm{env}}}$ ∼ 1.2 M _⊙ ), suggesting partial stripping of the progenitor. About ∼0.09 M _⊙ of circumstellar material through mass loss from late-time stellar evolution of the progenitor is needed to fit the early time (≲10 days) pseudo-bolometric light curve. Nebular line diagnostics of broad and multipeak components of [O i ] λλ 6300, 6364, H α , and [Ca ii ] λλ 7291, 7323 suggest that the explosion of SN 2023ufx could be inherently asymmetric, preferentially ejecting material along our line of sight.
Keywords
- Core-collapse supernovae
- Type II supernovae
- Red supergiant stars
- Stellar mass loss
- Circumstellar matter
