2024Natur.626..737L

Query : 2024Natur.626..737L

2024Natur.626..737L - Nature, 626, 737-741 (2024/February-0)

Heavy-element production in a compact object merger observed by JWST.

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., THONE C.C., DE UGARTE POSTIGO A. and KANN D.A.

Abstract (from CDS):

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), sources of high-frequency gravitational waves (GWs) and likely production sites for heavy-element nucleosynthesis by means of rapid neutron capture (the r-process). 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 and contains a kilonova similar to AT2017gfo, associated with the GW merger GW170817 (refs. ). 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.

Abstract Copyright: 2023 The Author(s)

Journal keyword(s):

Simbad objects: 19

Full paper

View the references in ADS

Number of rows : 19

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag B	Mag V	Mag R	Sp type	#ref 1850 - 2026	#notes
1	PKS 0252-712	rG	02 52 46.15578	-71 04 35.2742	19.0	19.0		~	104	1
2	GRB 190114C	gB	03 38 01.18	-26 56 47.8				~	343	0
3	GRB 230307A	gB	04 03 26.24	-75 22 43.8				~	221	0
4	ICRF J040820.3-654509	Sy2	04 08 20.37884	-65 45 09.0806		18.0		~	207	1
5	GRB 171010A	gB	04 26 19.41	-10 27 47.9				SNIc-BL	109	0
6	QSO B0454-810	Bla	04 50 05.44021015	-81 01 02.2314265	19.31	19.2	18.30	~	125	1
7	GRB 190530A	gB	08 02 07.73	+35 28 47.7				~	64	0
8	GRB 160821A	gB	11 25 01	+42 20.7				~	71	0
9	SN 2013cq	SN*	11 32 32.84	+27 41 56.2				SNIc	613	1
10	GRB 160625A	gB	11 47 39.82	-65 08 41.1				~	25	0
11	GrW 170817	GWE	13 09 48.0850	-23 22 53.343				~	2683	0
12	SDSS J140910.47+275320.8	G	14 09 10.47535	+27 53 20.8393				~	279	0
13	GRB 111005A	gB	14 53 15.60	-19 43 19.1				~	78	0
14	GRB 221009A	gB	19 13 03.85	+19 46 22.7				~	433	0
15	SN 1998bw	SN*	19 35 03.17	-52 50 46.1	14.09			SNIc	1928	2
16	ICRF J193925.0-634245	Sy2	19 39 25.0245304992	-63 42 45.640373400	18.87	18.37	17.64	~	1332	2
17	GRB 060614	G	21 23 32.140	-53 01 36.10				~	714	0
18	GRB 191019A	gB	22 40 05.87	-17 19 40.8				~	55	0
19	GRB 221023A	gB	~	~				~	12	0

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