Soft X-ray prompt emission from a high-redshift gamma-ray burst EP240315a

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dc.contributor.authorLiu, Y.
dc.contributor.authorSun, H.
dc.contributor.authorXu, D.
dc.contributor.authorSvinkin, D. S.
dc.contributor.authorDelaunay, J.
dc.contributor.authorTanvir, N. R.
dc.contributor.authorGao, H.
dc.contributor.authorZhang, C.
dc.contributor.authorChen, Y.
dc.contributor.authorWu, X.-F.
dc.contributor.authorZhang, B.
dc.contributor.authorYuan, W.
dc.contributor.authorAn, J.
dc.contributor.authorBruni, G.
dc.contributor.authorFrederiks, D. D.
dc.contributor.authorGhirlanda, G.
dc.contributor.authorHu, J.-W.
dc.contributor.authorLi, A.
dc.contributor.authorLi, C.-K.
dc.contributor.authorLi, J.-D.
dc.contributor.authorMalesani, D. B.
dc.contributor.authorPiro, L.
dc.contributor.authorRaman, G.
dc.contributor.authorRicci, R.
dc.contributor.authorTroja, E.
dc.contributor.authorVergani, S. D.
dc.contributor.authorWu, Q.-Y.
dc.contributor.authorYang, J.
dc.contributor.authorZhang, B.-B.
dc.contributor.authorZhu, Z.-P.
dc.contributor.authorPostigo, A. de Ugarte
dc.contributor.authorDemin, A. G.
dc.contributor.authorDobie, D.
dc.contributor.authorFan, Z.
dc.contributor.authorFu, S.-Y.
dc.contributor.authorFynbo, J. P. U.
dc.contributor.authorGeng, J.-J.
dc.contributor.authorGianfagna, G.
dc.contributor.authorHu, Y.-D.
dc.contributor.authorHuang, Y.-F.
dc.contributor.authorJiang, S.-Q.
dc.contributor.authorJonker, P. G.
dc.contributor.authorJulakanti, Y.
dc.contributor.authorKennea, J. A.
dc.contributor.authorKokomov, A. A.
dc.contributor.authorKuulkers, E.
dc.contributor.authorLei, W.-H.
dc.contributor.authorLeung, J. K.
dc.contributor.authorLevan, A. J.
dc.contributor.authorLi, D.-Y.
dc.contributor.authorLi, Y.
dc.contributor.authorLittlefair, S. P.
dc.contributor.authorLiu, X.
dc.contributor.authorLysenko, A. L.
dc.contributor.authorMa, Y.-N.
dc.contributor.authorMartin-Carrillo, A.
dc.contributor.authorO'Brien, P.
dc.contributor.authorParsotan, Tyler
dc.contributor.authorQuirola-Vasquez, J.
dc.contributor.authorRidnaia, A. V.
dc.contributor.authorRonchini, S.
dc.contributor.authorRossi, A.
dc.contributor.authorMata-Sanchez, D.
dc.contributor.authorSchneider, B.
dc.contributor.authorShen, R.-F.
dc.contributor.authorThakur, A. L.
dc.contributor.authorTohuvavohu, A.
dc.contributor.authorTorres, M. A. P.
dc.contributor.authorTsvetkova, A. E.
dc.contributor.authorUlanov, M. V.
dc.contributor.authorWei, J.-J.
dc.contributor.authorXiao, D.
dc.contributor.authorYin, Y.-H. I.
dc.contributor.authorBai, M.
dc.contributor.authorBurwitz, V.
dc.contributor.authorCai, Z.-M.
dc.contributor.authorChen, F.-S.
dc.contributor.authorChen, H.-L.
dc.contributor.authorChen, T.-X.
dc.contributor.authorChen, W.
dc.contributor.authorChen, Y.-F.
dc.contributor.authorChen, Y.-H.
dc.contributor.authorCheng, H.-Q.
dc.contributor.authorCui, C.-Z.
dc.contributor.authorCui, W.-W.
dc.contributor.authorDai, Y.-F.
dc.contributor.authorDai, Z.-G.
dc.contributor.authorEder, J.
dc.contributor.authorFan, D.-W.
dc.contributor.authorFeldman, C.
dc.contributor.authorFeng, H.
dc.contributor.authorFeng, Z.
dc.contributor.authorFriedrich, P.
dc.contributor.authorGao, X.
dc.contributor.authorGuan, J.
dc.contributor.authorHan, D.-W.
dc.contributor.authorHan, J.
dc.contributor.authorHou, D.-J.
dc.contributor.authorHu, H.-B.
dc.contributor.authorHu, T.
dc.contributor.authorHuang, M.-H.
dc.contributor.authorHuo, J.
dc.contributor.authorHutchinson, I.
dc.contributor.authorJi, Z.
dc.contributor.authorJia, S.-M.
dc.contributor.authorJia, Z.-Q.
dc.contributor.authorJiang, B.-W.
dc.contributor.authorJin, C.-C.
dc.contributor.authorJin, G.
dc.contributor.authorJin, J.-J.
dc.contributor.authorKeereman, A.
dc.contributor.authorLerman, H.
dc.contributor.authorLi, J.-F.
dc.contributor.authorLi, L.-H.
dc.contributor.authorLi, M.-S.
dc.contributor.authorLi, W.
dc.contributor.authorLi, Z.-D.
dc.contributor.authorLian, T.-Y.
dc.contributor.authorLiang, E.-W.
dc.contributor.authorLing, Z.-X.
dc.contributor.authorLiu, C.-Z.
dc.contributor.authorLiu, H.-Y.
dc.contributor.authorLiu, H.-Q.
dc.contributor.authorLiu, M.-J.
dc.contributor.authorLiu, Y.-R.
dc.contributor.authorLu, F.-J.
dc.contributor.authorLU, H.-J.
dc.contributor.authorLuo, L.-D.
dc.contributor.authorMa, F. L.
dc.contributor.authorMa, J.
dc.contributor.authorMao, J.-R.
dc.contributor.authorMao, X.
dc.contributor.authorMcHugh, M.
dc.contributor.authorMeidinger, N.
dc.contributor.authorNandra, K.
dc.contributor.authorOsborne, J. P.
dc.contributor.authorPan, H.-W.
dc.contributor.authorPan, X.
dc.contributor.authorRavasio, M. E.
dc.contributor.authorRau, A.
dc.contributor.authorRea, N.
dc.contributor.authorRehman, U.
dc.contributor.authorSanders, J.
dc.contributor.authorSantovincenzo, A.
dc.contributor.authorSong, L.-M.
dc.contributor.authorSu, J.
dc.contributor.authorSun, L.-J.
dc.contributor.authorSun, S.-L.
dc.contributor.authorSun, X.-J.
dc.contributor.authorTan, Y.-Y.
dc.contributor.authorTang, Q.-J.
dc.contributor.authorTao, Y.-H.
dc.contributor.authorTong, J.-Z.
dc.contributor.authorWang, H.
dc.contributor.authorWang, J.
dc.contributor.authorWang, L.
dc.contributor.authorWang, W.-X.
dc.contributor.authorWang, X.-F.
dc.contributor.authorWang, X.-Y.
dc.contributor.authorWang, Y.-L.
dc.contributor.authorWang, Y.-S.
dc.contributor.authorWei, D.-M.
dc.contributor.authorWillingale, R.
dc.contributor.authorXiong, S.-L.
dc.contributor.authorXu, H.-T.
dc.contributor.authorXu, J.-J.
dc.contributor.authorXu, X.-P.
dc.contributor.authorXu, Y.-F.
dc.contributor.authorXu, Z.
dc.contributor.authorXue, C.-B.
dc.contributor.authorXue, Y.-L.
dc.contributor.authorYan, A.-L.
dc.contributor.authorYang, F.
dc.contributor.authorYang, H.-N.
dc.contributor.authorYang, X.-T.
dc.contributor.authorYang, Y.-J.
dc.contributor.authorYu, Y.-W.
dc.contributor.authorZhang, J.
dc.contributor.authorZhang, M.
dc.contributor.authorZhang, S.-N.
dc.contributor.authorZhang, W.-D.
dc.contributor.authorZhang, W.-J.
dc.contributor.authorZhang, Y.-H.
dc.contributor.authorZhang, Z.
dc.contributor.authorZhang, Z.
dc.contributor.authorZhang, Z.-L.
dc.contributor.authorZhao, D.-H.
dc.contributor.authorZhao, H.-S.
dc.contributor.authorZhao, X.-F.
dc.contributor.authorZhao, Z.-J.
dc.contributor.authorZhou, L.-X.
dc.contributor.authorZhou, Y.-L.
dc.contributor.authorZhu, Y.-X.
dc.contributor.authorZhu, Z.-C.
dc.contributor.authorZuo, X.-X.
dc.date.accessioned2024-05-13T19:11:09Z
dc.date.available2024-05-13T19:11:09Z
dc.date.issued2024-04-25
dc.description.abstractLong gamma-ray bursts (GRBs) are believed to originate from core collapse of massive stars. High-redshift GRBs can probe the star formation and reionization history of the early universe, but their detection remains rare. Here we report the detection of a GRB triggered in the 0.5--4 keV band by the Wide-field X-ray Telescope (WXT) on board the Einstein Probe (EP) mission, designated as EP240315a, whose bright peak was also detected by the Swift Burst Alert Telescope and Konus-Wind through off-line analyses. At a redshift of z=4.859, EP240315a showed a much longer and more complicated light curve in the soft X-ray band than in gamma-rays. Benefiting from a large field-of-view (∼3600 deg²) and a high sensitivity, EP-WXT captured the earlier engine activation and extended late engine activity through a continuous detection. With a peak X-ray flux at the faint end of previously known high-z GRBs, the detection of EP240315a demonstrates the great potential for EP to study the early universe via GRBs.
dc.description.sponsorshipThis work is based on the data obtained with Einstein Probe, a space mission supported by Strategic Priority Program on Space Science of Chinese Academy of Sciences, in collaboration with ESA, MPE and CNES (Grant No. XDA15310000), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB0550200), and the National Key R&D Program of China (2022YFF0711500). We acknowledge the support by the National Natural Science Foundation of China (Grant Nos. 12321003, 12103065, 12333004, 12373040, 12021003), the China Manned Space Project (Grant Nos. CMS-CSST-2021-A13, CMS-CSST-2021-B11), and the Youth Innovation Promotion Association of the Chinese Academy of Sciences. We acknowledge the data resources and technical support provided by the China National Astronomical Data Center, the Astronomical Science Data Center of the Chinese Academy of Sciences, and the Chinese Virtual Observatory. We acknowledge the observational data taken at NOT (programs 68-811, PI Xu, and 68-020, PI Malesani), VLT (program 110.24CF, PIs: Tanvir, Vergani, Malesani), TNG: (program A47TAC 42, PI: Melandri), and LBT (program IT-2023B-020, PI Maiorano). The work of D.S.S., D.D.F, A.V.R., A.L.L., A.E.T., M.V.U., A.G.D. and A.A.K. was carried out in the framework of the basic funding programme of the Ioffe Institute no. FFUG-2024-0002; A.E.T also acknowledges financial support from Accordo ASI e INAF HERMES 2022-25-HH.0. P.G.J. has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (Grant agreement No. 101095973). R. R. and E.T. acknowledge support from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (Grant agreement No. 101002761). L.P., G.B., G.G., and A.L.T. acknowledge useful discussions with Lauren Rhodes regarding the analysis and interpretation of the e-MERLIN dataset. L.P., G.B., G.G. and A.L.T. acknowledge support from the European Union Horizon 2020 programme under the AHEAD2020 project (grant agreement number 871158). L.P., G.G. and A.L.T. also acknowledge support from the ASI (Italian Space Agency) through Contract No. 2019-27-HH.0. P.O.’B. and N.R.T. acknowledge support from UK/STFC grant ST/W000857/1. J.D. acknowledge support from NASA contract NAS5-0136.
dc.description.urihttp://arxiv.org/abs/2404.16425
dc.format.extent41 pages
dc.genrejournal articles
dc.genrepreprint
dc.identifierdoi:10.13016/m2jtpy-w09a
dc.identifier.urihttps://doi.org/10.48550/arXiv.2404.16425
dc.identifier.urihttp://hdl.handle.net/11603/33932
dc.language.isoen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Faculty Collection
dc.relation.ispartofUMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
dc.rightsCC BY-NC-ND 4.0 DEED Attribution-NonCommercial-NoDerivs 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectAstrophysics - High Energy Astrophysical Phenomena
dc.titleSoft X-ray prompt emission from a high-redshift gamma-ray burst EP240315a
dc.typeText
dcterms.creatorhttps://orcid.org/0000-0002-4299-2517

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