apjlThe Astrophysical Journal LettersAPJLAstrophys. J. Lett.2041-82052041-8213The American Astronomical Societyapjlad6c3210.3847/2041-8213/ad6c32ad6c32AAS55749330High-Energy Phenomena and Fundamental PhysicsDiscovery of a Relativistic Stripped-envelope Type Ic-BL Supernova at z = 2.83 with JWST0000-0003-2445-3891SiebertM. R.1msiebert@stsci.edu0000-0002-4781-9078DeCourseyC.20000-0003-4263-2228CoulterD. A.10000-0003-0209-674XEngesserM.10000-0002-2361-7201PierelJ. D. R.1170000-0002-4410-5387RestA.130000-0003-1344-9475EgamiE.20000-0002-9301-5302ShahbandehM.10000-0003-1060-0723ChenW.40000-0003-2238-1572FoxO. D.10000-0002-0632-8897ZenatiY.13180000-0003-1169-1954MoriyaT. J.5670000-0002-8651-9879BunkerA. J.80000-0002-1617-8917CargileP. A.90000-0002-2678-2560CurtiM.100000-0002-2929-3121EisensteinD. J.90000-0003-3703-5154GezariS.10000-0001-6395-6702GomezS.10000-0002-5063-0751GuoloM.30000-0002-9280-7594JohnsonB. D.90000-0002-7593-8584JoshiB. A.30000-0003-2495-8670KarmenM.30000-0002-4985-3819MaiolinoR.1112130000-0001-9171-5236QuimbyR. M.14150000-0002-4271-0364RobertsonB.160000-0002-7756-4440StrolgerL. G.10000-0002-4622-6617SunF.90000-0001-5233-6989WangQ.30000-0002-4043-9400WeversT.1 Space Telescope Science Institute, Baltimore, MD 21218, USA; msiebert@stsci.edu Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA Physics and Astronomy Department, Johns Hopkins University, Baltimore, MD 21218, USA Department of Physics, Oklahoma State University, 145 Physical Sciences Building, Stillwater, OK 74078, USA National Astronomical Observatory of Japan, National Institutes of Natural Sciences, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan Graduate Institute for Advanced Studies, SOKENDAI, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan School of Physics and Astronomy, Monash University, Clayton, VIC 3800, Australia Department of Physics, University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, UK Center for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA European Southern Observatory, Karl-Schwarzschild-Strasse 2, 85748 Garching, Germany Kavli Institute for Cosmology, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK Cavendish Laboratory, University of Cambridge, 19 JJ Thomson Avenue, Cambridge CB3 0HE, UK Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK Department of Astronomy/Mount Laguna Observatory, San Diego State University, 5500 Campanile Drive, San Diego, CA 92812-1221, USA Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan Department of Astronomy and Astrophysics, University of California, Santa Cruz, 1156 High Street, Santa Cruz, CA 96054, USA

NASA Einstein Fellow.

ISEF International Fellowship.

019202426082024260820249721L137620242272024227202422072024© 2024. The Author(s). Published by the American Astronomical Society.2024 Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.Abstract

We present James Webb Space Telescope (JWST) NIRCam and NIRSpec observations of a Type Ic supernova (SN Ic) and its host galaxy (JADES-GS+53.13533-27.81457) at z = 2.83. This SN (named SN 2023adta) was identified in deep JWST/NIRCam imaging from the JWST Advanced Deep Extragalactic Survey (JADES) program. Follow-up observations with JWST/NIRSpec provided a spectroscopic redshift of z = 2.83 and the classification as an SN Ic-BL. The light curve of SN 2023adta matches well with other stripped-envelope SNe, and we find a high peak luminosity, M V = −19.0 ± 0.2 mag, based on the distribution of best-fit SNe. The broad absorption features in its spectrum are consistent with other SNe Ic-BL 1–3 weeks after peak brightness. We measure a Ca ii near-IR triplet expansion velocity of 29,000 ± 2000 km s−1. The host galaxy of SN 2023adta is irregular, and modeling of its spectral energy distribution indicates a metallicity of Z=0.35−0.08+0.16Z⊙ . This environment is consistent with the population of low-z SNe Ic-BL that prefer lower metallicities relative to other stripped-envelope SNe and track long-duration γ-ray burst environments. We do not identify any γ-ray bursts that are coincident with SN 2023adta. Given the rarity of SNe Ic-BL in the local Universe, the detection of an SN Ic-BL at z = 2.83 could indicate that their rates are enhanced at high redshift.

unified-astronomy-thesaurushttp://astrothesaurus.org/uat/1668Supernovae1668http://astrothesaurus.org/uat/304Core-collapse supernovae304http://astrothesaurus.org/uat/1730Type Ic supernovae1730Space Telescope Science Institute (STScI)https://doi.org/10.13039/100013757 D0101.90303JWST NIRSpec/NIRCam Follow-Up of the High- Redshift Transients Discovered in the GOODS-S JADES-Deep FieldJWST-GO-06541ccc2041-8205/24/L13+13$33.00crossmarkyesdataset dataset dataset Acknowledgments

This work is based on observations made with the NASA/ESA/CSA JWST as part of programs 1180 and 6541. Support for program JWST-GO-06541 was provided by NASA through a grant from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127. This Letter is based on observations with the NASA/ESA Hubble Space Telescope and James Webb Space Telescope obtained from the Mikulski Archive for Space Telescopes at STScI. We thank the DDT and JWST/HST scheduling teams and instrument experts at STScI for extraordinary effort in getting the DDT observations used here scheduled quickly.

M.R.S. is supported by an STScI Postdoctoral Fellowship. J.D.R.P. is supported by NASA through Einstein Fellowship grant No. HF2-51541.001 awarded by the Space Telescope Science Institute (STScI), which is operated by the Association of Universities for Research in Astronomy, Inc., for NASA, under contract NAS5-26555. This research is based (in part) on observations made with the NASA/ESA Hubble Space Telescope obtained from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 526555. The JWST data used in this Letter can be found in MAST at doi:10.17909/ftmd-s562.

Additionally, this work made use of the lux supercomputer at UC Santa Cruz, which is funded by NSF MRI grant AST 1828315, as well as the High Performance Computing (HPC) resources at the University of Arizona, which are funded by the Office of Research Discovery and Innovation (ORDI), Chief Information Officer (CIO), and University Information Technology Services (UITS). A.J.B. acknowledges funding from the “FirstGalaxies” Advanced Grant from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program (grant agreement No. 789056).

P.A.C., E.E., D.J.E., and B.D.J. are supported by a JWST/NIRCam contract to the University of Arizona, NAS5-02015. D.J.E. is also supported as a Simons Investigator. R.M. acknowledges support by the Science and Technology Facilities Council (STFC), the ERC through Advanced grant 695671 “QUENCH”, and the UKRI Frontier Research grant RISEandFALL. R.M. also acknowledges funding from a research professorship from the Royal Society.

B.E.R. acknowledges support from the NIRCam Science Team contract to the University of Arizona, NAS5-02015, and JWST Program 3215. J.D.R.P. is supported by NASA through Einstein Fellowship grant No. HF2-51541.001 awarded by the Space Telescope Science Institute (STScI), which is operated by the Association of Universities for Research in Astronomy, Inc., for NASA, under contract NAS5-26555. Y.Z. thanks Matteo Cantiello for helpful discussions.

Facility: JWST (NIRCam/NIRSpec).

Software: astropy (Astropy Collaboration et al. 2013, 2018, 2022)