The Emergence of a Lanthanide-rich Kilonova Following the Merger of Two Neutron Stars

Tanvir, N.R. et. al.

Detalles Bibliográficos
Autores: Tanvir, N.R., Cano, Z., Ugarte Postigo, Antonio de, Hodosan, G., Kann, D.A., Thöne, Cristina Carina, Wijers, R. A.M.J.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/164537
Acceso en línea:http://hdl.handle.net/10261/164537
Access Level:acceso abierto
Palabra clave:Stars: neutron
Nuclear reactions, nucleosynthesis, abundances
Gravitational waves
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spelling The Emergence of a Lanthanide-rich Kilonova Following the Merger of Two Neutron StarsTanvir, N.R.Cano, Z.Ugarte Postigo, Antonio deHodosan, G.Kann, D.A.Thöne, Cristina CarinaWijers, R. A.M.J.Stars: neutronNuclear reactions, nucleosynthesis, abundancesGravitational wavesTanvir, N.R. et. al.We report the discovery and monitoring of the near-infrared counterpart (AT2017gfo) of a binary neutron-star merger event detected as a gravitational wave source by Advanced Laser Interferometer Gravitational-wave Observatory (LIGO)/Virgo (GW170817) and as a short gamma-ray burst by Fermi Gamma-ray Burst Monitor (GBM) and Integral SPI-ACS (GRB 170817A). The evolution of the transient light is consistent with predictions for the behavior of a >kilonova/macronova> powered by the radioactive decay of massive neutron-rich nuclides created via r-process nucleosynthesis in the neutron-star ejecta. In particular, evidence for this scenario is found from broad features seen in Hubble Space Telescope infrared spectroscopy, similar to those predicted for lanthanide-dominated ejecta, and the much slower evolution in the near-infrared k-band compared to the optical. This indicates that the late-time light is dominated by high-opacity lanthanide-rich ejecta, suggesting nucleosynthesis to the third r-process peak (atomic masses A ≈ 195). This discovery confirms that neutron-star mergers produce kilo-/macronovae and that they are at least a major - if not the dominant - site of rapid neutron capture nucleosynthesis in the universe.A.J.L., D.S., and J.D.L. acknowledge support from STFC via grant ST/P000495/1. N.R.T. and A.J.L. have received funding from the European Research Council (ERC) under the European Union's Horizon 2020 Research and Innovation Programme (grant agreement No. 725246, TEDE, Levan). Ad.U.P., C.T., Z.C., and D.A.K. acknowledge support from the Spanish project AYA 2014-58381-P. Z.C. also acknowledges support from the Juan de la Cierva Incorporacion fellowship IJCI-2014-21669, and D.A.K. from Juan de la Cierva Incorporacion fellowship IJCI-2015-26153. J.H. is supported by a VILLUM FONDEN Investigator grant (project number 16599). P.D.A., S.C., and A.M. acknowledge support from the ASI grant I/004/11/3. S.R. has been supported by the Swedish Research Council (VR) under grant No. 2016-03657_3, by the Swedish National Space Board under grant No. Dnr. 107/16, and by the research environment grant >Gravitational Radiation and Electromagnetic Astrophysical Transients (GREAT)> funded by the Swedish Research council (VR) under Dnr 2016-06012.Peer ReviewedInstitute of Physics PublishingEuropean Research CouncilMinisterio de Economía, Industria y Competitividad (España)Swedish Research CouncilConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2018201820172018info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/164537reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/725246info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA 2014-58381-Pinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/IJCI-2014-21669info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/IJCI-2015-26153Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1645372026-05-22T06:33:51Z
dc.title.none.fl_str_mv The Emergence of a Lanthanide-rich Kilonova Following the Merger of Two Neutron Stars
title The Emergence of a Lanthanide-rich Kilonova Following the Merger of Two Neutron Stars
spellingShingle The Emergence of a Lanthanide-rich Kilonova Following the Merger of Two Neutron Stars
Tanvir, N.R.
Stars: neutron
Nuclear reactions, nucleosynthesis, abundances
Gravitational waves
title_short The Emergence of a Lanthanide-rich Kilonova Following the Merger of Two Neutron Stars
title_full The Emergence of a Lanthanide-rich Kilonova Following the Merger of Two Neutron Stars
title_fullStr The Emergence of a Lanthanide-rich Kilonova Following the Merger of Two Neutron Stars
title_full_unstemmed The Emergence of a Lanthanide-rich Kilonova Following the Merger of Two Neutron Stars
title_sort The Emergence of a Lanthanide-rich Kilonova Following the Merger of Two Neutron Stars
dc.creator.none.fl_str_mv Tanvir, N.R.
Cano, Z.
Ugarte Postigo, Antonio de
Hodosan, G.
Kann, D.A.
Thöne, Cristina Carina
Wijers, R. A.M.J.
author Tanvir, N.R.
author_facet Tanvir, N.R.
Cano, Z.
Ugarte Postigo, Antonio de
Hodosan, G.
Kann, D.A.
Thöne, Cristina Carina
Wijers, R. A.M.J.
author_role author
author2 Cano, Z.
Ugarte Postigo, Antonio de
Hodosan, G.
Kann, D.A.
Thöne, Cristina Carina
Wijers, R. A.M.J.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Research Council
Ministerio de Economía, Industria y Competitividad (España)
Swedish Research Council
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Stars: neutron
Nuclear reactions, nucleosynthesis, abundances
Gravitational waves
topic Stars: neutron
Nuclear reactions, nucleosynthesis, abundances
Gravitational waves
description Tanvir, N.R. et. al.
publishDate 2017
dc.date.none.fl_str_mv 2017
2018
2018
2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/164537
url http://hdl.handle.net/10261/164537
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
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#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/H2020/725246
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA 2014-58381-P
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/IJCI-2014-21669
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/IJCI-2015-26153
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Institute of Physics Publishing
publisher.none.fl_str_mv Institute of Physics Publishing
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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