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JWST Observations of SN 2024abup: First Detection of CO in a Broad-lined Type Ic Supernova and Constraints on r-process Nucleosynthesis

Authors: Manisha Shrestha, Lindsey A. Kwok, David J. Sand, Stan Barmentloo, Collin Christy, Anders Jerkstrand, K. Azalee Bostroem, Jennifer E. Andrews, Kate D. Alexander, Yize Dong, 一泽董, C. E. Fields, Emily Hoang, Griffin Hosseinzadeh, Brian Hsu, Daryl Janzen, Saurabh W. Jha, Joel Johansson, Jeniveve Pearson, M. J. Lundquist, Darshana Mehta, Aidan Martas, Maryam Modjaz, Bernhard Müller, Conor L. Ransome, Aravind P. Ravi, Mathieu Renzo, Nicolás Meza Retamal, Bhagya Subrayan, Nathan Smith, Stefano Valenti, Sergiy Vasylyev, Giacomo Ricigliano, Peter J. Brown, Moira Andrews, Joseph Farah, D. Andrew Howell, Curtis McCully, Megan Newsome, Kathryn Wynn, Ryan Chornock, Natalie LeBaron, Raffaella Margutti, Melissa Shahbandeh, Chris Ashall, Peter Hoeflich

Manisha Shrestha et al 2026 The Astrophysical Journal Letters 1009 .

Provider: AAS Journals

Caption: Figure 8.

Comparison of the NIR spectrum of SN 2024abup at +41 days with SN 1998bw (F. Patat et al. 2001), AT 2017gfo (E. Pian et al. 2017), and GRB 230307A (A. J. Levan et al. 2024). Similar lines are seen for both SN 1998bw and SN 2024abup. The [Te III] line is identified in AT2017gfo and GRB 230307A as a signature of r-process element production. There is a bump in SN 2024abup near the [Te III]; however, there could be Mg II present there as well.

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