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Heavy-element production in a compact object merger observed by JWST
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Levan, A.J.Gompertz, B.P.
Salafia, O.S.
Bulla, M.
Burns, E.
Hotokezaka, K.
Izzo, L.
Lamb, G.P.
Malesani, D.B.
Oates, S.R.
Ravasio, M.E.
Rouco, Escorial, A.
Schneider, B.
Sarin, N.
Schulze, S.
Tanvir, N.R.
Ackley, K.
Anderson, G.
Brammer, G.B.
Christensen, L.
Dhillon, V.S.
Evans, P.A.
Fausnaugh, M.
Fong, W.-F.
Fruchter, A.S.
Fryer, C.
Fynbo, J.P.U.
Gaspari, N.
Heintz, K.E.
Hjorth, J.
Kennea, J.A.
Kennedy, M.R.
Laskar, T.
Leloudas, G.
Mandel, I.
Martin-Carrillo, A.
Metzger, B.D.
Nicholl, M.
Nugent, A.
Palmerio, J.T.
Pugliese, G.
Rastinejad, J.
Rhodes, L.
Rossi, A.
Saccardi, A.
Smartt, S.J.
Stevance, H.F.
Tohuvavohu, A.
van der Horst, A.
Vergani, S.D.
Watson, D.
Barclay, T.
Bhirombhakdi, K.
Breedt, E.
Breeveld, A.A.
Brown, A.J.
Campana, S.
Chrimes, A.A.
D’Avanzo, P.
D’Elia, V.
de Pasquale, M.
Dyer, M.J.
Galloway, D.K.
Garbutt, J.A.
Green, M.J.
Hartmann, D.H.
Jakobsson, P.
Kerry, P.
Kouveliotou, C.
Langeroodi, D.
le Floc’h, E.
Leung, J.K.
Littlefair, S.P.
Munday, J.
O’Brien, P.
Parsons, S.G.
Pelisoli, I.
Sahman, D.I.
Salvaterra, R.
Sbarufatti, B.
Steeghs, D.
Tagliaferri, G.
Thöne, C.C.
de Ugarte Postigo, A.
Kann, D.A.
Affiliation
Department of Astronomy, The University of ArizonaIssue Date
2023-10-25
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Nature ResearchCitation
Levan, A.J., Gompertz, B.P., Salafia, O.S. et al. Heavy-element production in a compact object merger observed by JWST. Nature (2023). https://doi.org/10.1038/s41586-023-06759-1Journal
NatureRights
© The Author(s) 2023. This article is licensed under a Creative Commons Attribution 4.0 International License.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
The mergers of binary compact objects such as neutron stars and black holes are of central interest to several areas of astrophysics, including as the progenitors of gamma-ray bursts (GRBs) 1, sources of high-frequency gravitational waves (GWs) 2 and likely production sites for heavy-element nucleosynthesis by means of rapid neutron capture (the r-process) 3. Here we present observations of the exceptionally bright GRB 230307A. We show that GRB 230307A belongs to the class of long-duration GRBs associated with compact object mergers 4–6 and contains a kilonova similar to AT2017gfo, associated with the GW merger GW170817 (refs. 7–12). We obtained James Webb Space Telescope (JWST) mid-infrared imaging and spectroscopy 29 and 61 days after the burst. The spectroscopy shows an emission line at 2.15 microns, which we interpret as tellurium (atomic mass A = 130) and a very red source, emitting most of its light in the mid-infrared owing to the production of lanthanides. These observations demonstrate that nucleosynthesis in GRBs can create r-process elements across a broad atomic mass range and play a central role in heavy-element nucleosynthesis across the Universe. © 2023, The Author(s).Note
Open access articleISSN
0028-0836PubMed ID
37879361Version
Final Published Versionae974a485f413a2113503eed53cd6c53
10.1038/s41586-023-06759-1
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Except where otherwise noted, this item's license is described as © The Author(s) 2023. This article is licensed under a Creative Commons Attribution 4.0 International License.
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