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Compact radio emission indicates a structured jet was produced by a binary neutron star merger
Ghirlanda, G.1,2,3; Salafia, O. S.1,2,3; Paragi, Z.4; Giroletti, M.5; Yang J(杨军)6,7; Marcote, B.4; Blanchard, J.4; Agudo, I.8; An, T.9; Bernardini, M. G.10,29; Beswick, R.11; Branchesi, M.12,13; Campana, S.1; Casadio, C.14; Chassande-Mottin, E.15; Colpi, M.2,3; Covino, S.1; D'Avanzo, P.1; D'Elia, V.16; Frey, S.17; Gawronski, M.18; Ghisellini, G.1; Gurvits, L. I.4,19; Jonker, P. G.20,21; van Langevelde, H. J.4,22; Melandri, A.1; Moldon, J.11; Nava, L.1; Perego, A.3,30; Perez-Torres, M. A.8,23; Reynolds, C.24; Salvaterra, R.25; Tagliaferri, G.1; Venturi, T.5; Vergani, S. D.26; Zhang, M.27,28
Source PublicationSCIENCE
2019-03-01
Volume363Issue:6430Pages:968-+
DOI10.1126/science.aau8815
Contribution Rank第7完成单位
Indexed BySCI
Abstract

The binary neutron star merger event GW170817 was detected through both electromagnetic radiation and gravitational waves. Its afterglow emission may have been produced by either a narrow relativistic jet or an isotropic outflow. High-spatial-resolution measurements of the source size and displacement can discriminate between these scenarios. We present very-long-baseline interferometry observations, performed 207.4 days after the merger by using a global network of 32 radio telescopes. The apparent source size is constrained to be smaller than 2.5 milli-arc seconds at the 90% confidence level. This excludes the isotropic outflow scenario, which would have produced a larger apparent size, indicating that GW170817 produced a structured relativistic jet. Our rate calculations show that at least 10% of neutron star mergers produce such a jet.

Funding ProjectNational Institute of Astrophysics[1.05.01.88.06] ; Italian Ministry for University and Research (MIUR)[1.05.06.13] ; ASI[I/004/11/3] ; European Commission Horizon 2020 Research and Innovation Programme[730562] ; Spanish Ministerio de Economa y Competitividad (MINECO) of ICCUB (Unidad de Excelencia Mara de Maeztu)[AYA201676012-C3-1-P] ; Spanish Ministerio de Economa y Competitividad (MINECO) of ICCUB (Unidad de Excelencia "Mara de Maeztu")[FPA2015-69210-C6-2-R] ; Spanish Ministerio de Economa y Competitividad (MINECO) of ICCUB (Unidad de Excelencia "Mara de Maeztu")[MDM-2014-0369] ; Spanish MINECO[AYA2012-38491-C02-02] ; Spanish MINECO[AYA2015-63939-C2-1-P] ; National Key R&D Programme of China[2018YFA0404603] ; European Union's Horizon 2020 research and innovation program[653477] ; Hungarian National Research, Development and Innovation Office[OTKA NN110333] ; Australian Government
Funding OrganizationNational Institute of Astrophysics[1.05.01.88.06] ; Italian Ministry for University and Research (MIUR)[1.05.06.13] ; ASI[I/004/11/3] ; European Commission Horizon 2020 Research and Innovation Programme[730562] ; Spanish Ministerio de Economa y Competitividad (MINECO) of ICCUB (Unidad de Excelencia Mara de Maeztu)[AYA201676012-C3-1-P, FPA2015-69210-C6-2-R, MDM-2014-0369] ; Spanish MINECO[AYA2012-38491-C02-02, AYA2015-63939-C2-1-P] ; National Key R&D Programme of China[2018YFA0404603] ; European Union's Horizon 2020 research and innovation program[653477] ; Hungarian National Research, Development and Innovation Office[OTKA NN110333] ; Australian Government
Language英语
Subject Area天文学 ; 射电天文学 ; 恒星与银河系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherAMER ASSOC ADVANCEMENT SCIENCE
Publication Place1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
ISSN0036-8075
URL查看原文
WOS IDWOS:000460194200043
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS KeywordAFTERGLOW LIGHT CURVES ; ELECTROMAGNETIC COUNTERPART ; LUMINOSITY FUNCTION ; GRB JETS ; RAY ; GW170817
Citation statistics
Cited Times:50[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/19520
Collection射电天文研究组
Corresponding AuthorGhirlanda, G.; Salafia, O. S.
Affiliation1.Istituto Nazionale di Astrofisica–Osservatorio Astronomico di Brera, Via E. Bianchi 46, I-23807 Merate, Italy
2.Dipartimento di Fisica G. Occhialini, Università di Milano-Bicocca, Piazza della Scienza 3, IT-20126 Milano, Italy
3.Sezione di Milano Bicocca, Istituto Nazionale Fisica Nucleare (INFN), Piazza della Scienza 3, 20126 Milano, Italy
4.Joint Institute for Very Long Baseline Interferometry (VLBI) European Research Infrastructure Consortium (ERIC), Oude Hoogeveensedijk 4, 7991 PD Dwingeloo, Netherlands
5.Istituto Nazionale di Astrofisica–Istituto di Radioastronomia, via Gobetti 101, I40129, Bologna, Italia
6.Chalmers University of Technology, Onsala Space Observatory, SE-439 92, Sweden
7.Yunnan Observatories, Chinese Academy of Sciences, 650216 Kunming, Yunnan, China
8.Instituto de Astrofísica de Andalucía–Consejo Superior de Investigaciones Científicas (CSIC), Glorieta de la Astronomía s/n, E-18008, Granada, Spain
9.Shanghai Astronomical Observatory, Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, 200030 Shanghai, China
10.Laboratoire Univers et Particules de Montpellier, Universitè de Montpellier, Centre National de la Recherche Scientifique/Institute National de Physique Nucleaire et Physique des Particules (CNRS/IN2P3), place Eugéne Bataillon, F–34085 Montpellier, France
11.Electronic Multi-Element Radio Linked Interferometer Network/Very Long Baseline Interferometry (e-MERLIN/VLBI) National Facility, Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Manchester, UK
12.Gran Sasso Science Institute, Viale F. Crispi 7, I-67100, L’Aquila, Italy
13.Laboratori Nazionali del Gran Sasso, INFN, I-67100 L’Aquila, Italy
14.Max Planck Institute fur Radioastronomie, Auf dem Huegel 69, Bonn D-53121, Germany
15.AstroParticule et Cosmologie (APC), Université Paris Diderot, CNRS/IN2P3, Commissariat à l’Énergie Atomique et aux Énergies Alternatives/ Institute for Research on the Fundamental Laws of the Universe (CEA/IRFU), Observatoire de Paris, Sorbonne Paris Cité,
16.Space Science Data Center, Agenzia Spaziale Italiana (ASI), Via del Politecnico, 00133, Roma, Italy
17.Konkoly Observatory, Magyar Tudományos Akadémia (MTA) Research Centre for Astronomy and Earth Sciences, Konkoly Thege Miklós út 15-17, H-1121 Budapest, Hungary
18.Centre for Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland
19.Department of Astrodynamics and Space Missions, Delft University of Technology, Kluyverweg 1, 2629 HS Delft, Netherlands
20.Space Research Organisation of the Netherlands (SRON), Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, Netherland
21.Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University, Post Office Box 9010, 6500 GL Nijmegen, Netherlands
22.Leiden Univ, Sterrewacht Leiden, POB 9513, NL-2300 RA Leiden, Netherlands
23.Departamento de Física Teórica, Facultad de Ciencias, Universidad de Zaragoza, E-50019, Spain
24.Commonwealth Scientific and Industrial Research Organization (CSIRO) Astronomy and Space Science, PO Box 1130, Bentley WA 6102, Australia
25.Istituto Nazionale di Astrofisica, Istituto di Astrofisica Spaziale e Fisica cosmica (IASF), via E. Bassini 15, 20133 Milano, Italy
26.Galaxies, Etoiles, Physique et Instrumentation (GEPI) Observatoire de Paris, CNRS UMR 8111, Meudon, France
27.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, 150 Science 1-Street, Urumqi 831001, China
28.Key Laboratory for Radio Astronomy, Chinese Academy of Sciences, 2 West Beijing Road, Nanjing 210008, China
29.Osservatorio Astronomico di Brera, INAF, Milan, Italy
30.Department of Physics, University of Trento, via Sommarive 14, I-38123 Trento, Italy
Recommended Citation
GB/T 7714
Ghirlanda, G.,Salafia, O. S.,Paragi, Z.,et al. Compact radio emission indicates a structured jet was produced by a binary neutron star merger[J]. SCIENCE,2019,363(6430):968-+.
APA Ghirlanda, G..,Salafia, O. S..,Paragi, Z..,Giroletti, M..,Yang J.,...&Zhang, M..(2019).Compact radio emission indicates a structured jet was produced by a binary neutron star merger.SCIENCE,363(6430),968-+.
MLA Ghirlanda, G.,et al."Compact radio emission indicates a structured jet was produced by a binary neutron star merger".SCIENCE 363.6430(2019):968-+.
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