A Reverse Shock in GRB 181201A

Autores
Laskar, Tanmoy; van Eerten, Hendrik; Schady, Patricia; Mundell, Carol; Alexander, Kate D.; Duran, Rodolfo Barniol; Berger, Edo; Bolmer, Jan; Chornock, Ryan; Coppejans, Deanne; Fong, Wen fai Fong; Gomboc, Andreja; Jordana, Nuria; Kobayashi, Shiho; Margutti, Raffaella; Menten, Karl; Sari, Reem; Yamazaki, Ryo; Lipunov, Vladimir; Gorbovskoy, Evgeniy; Kornilov, Victor; Tyurina, Nina; Zimnukhov, Dmitriy; Podestá, Ricardo César; Levato, Orlando Hugo; Buckley, David; Tlatov, Andrey; Rebolo, Rafael; Serra Ricart, Manuel
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present comprehensive multiwavelength radio to X-ray observations of GRB 181201A spanning from ≈150 s to ≈163 days after the burst, comprising the first joint ALMA-VLA-GMRT observations of a gamma-ray burst (GRB) afterglow. The radio and millimeter-band data reveal a distinct signature at ≈3.9 days, which we interpret as reverse-shock (RS) emission. Our observations present the first time that a single radio-frequency spectral energy distribution can be decomposed directly into RS and forward shock (FS) components. We perform detailed modeling of the full multiwavelength data set, using Markov Chain Monte Carlo sampling to construct the joint posterior density function of the underlying physical parameters describing the RS and FS synchrotron emission. We uncover and account for all discovered degeneracies in the model parameters. The joint RS-FS modeling reveals a weakly magnetized (σ ≈ 3 × 10-3), mildly relativistic RS, from which we derive an initial bulk Lorentz factor of Γ0 ≈ 103 for the GRB jet. Our results support the hypothesis that low-density environments are conducive to the observability of RS emission. We compare our observations to other events with strong RS detections and find a likely observational bias selecting for longer lasting, nonrelativistic RSs. We present and begin to address new challenges in modeling posed by the present generation of comprehensive, multifrequency data sets.
Fil: Laskar, Tanmoy. University of Bath; Reino Unido
Fil: van Eerten, Hendrik. University of Bath; Reino Unido
Fil: Schady, Patricia. University of Bath; Reino Unido
Fil: Mundell, Carol. University of Bath; Reino Unido
Fil: Alexander, Kate D.. Northwestern University; Estados Unidos
Fil: Duran, Rodolfo Barniol. California State University; Estados Unidos
Fil: Berger, Edo. Harvard University; Estados Unidos
Fil: Bolmer, Jan. Institut Max Planck fuer Gesellschaft. Max Planck Institute for Extraterrestrial Physics; Alemania
Fil: Chornock, Ryan. Ohio University; Estados Unidos
Fil: Coppejans, Deanne. Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy; Estados Unidos. Center for Interdisciplinary Exploration and Research in Astrophysics; Estados Unidos. Northwestern University; Estados Unidos
Fil: Fong, Wen fai Fong. Northwestern University; Estados Unidos. Center for Interdisciplinary Exploration and Research in Astrophysics; Estados Unidos
Fil: Gomboc, Andreja. University of Nova Gorica. Center for Astrophysics and Cosmology; Eslovenia
Fil: Jordana, Nuria. University of Bath; Reino Unido
Fil: Kobayashi, Shiho. Liverpool John Moores University;
Fil: Margutti, Raffaella. Northwestern University; Estados Unidos. Center for Interdisciplinary Exploration and Research in Astrophysics; Estados Unidos
Fil: Menten, Karl. Max-Planck-Institut für Radioastronomie; Alemania
Fil: Sari, Reem. The Hebrew University of Jerusalem; Israel. The Hebrew University. Racah Institute of Physics; Israel
Fil: Yamazaki, Ryo. Aoyama-Gakuin University. Department of Physics and Mathematics; Japón
Fil: Lipunov, Vladimir. M. V. Lomonosov Moscow State University. Physics Department; Rusia
Fil: Gorbovskoy, Evgeniy. M. V. Lomonosov Moscow State University. Sternberg Astronomical Institute; Rusia
Fil: Kornilov, Victor. M. V. Lomonosov Moscow State University. Sternberg Astronomical Institute; Rusia
Fil: Tyurina, Nina. M. V. Lomonosov Moscow State University. Sternberg Astronomical Institute; Rusia
Fil: Zimnukhov, Dmitriy. M. V. Lomonosov Moscow State University. Sternberg Astronomical Institute; Rusia
Fil: Podestá, Ricardo César. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Departamento de Informática. Observatorio Astronómico Félix Aguilar; Argentina
Fil: Levato, Orlando Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; Argentina
Fil: Buckley, David. South African Astrophysical Observatory; Sudáfrica
Fil: Tlatov, Andrey. Pulkovo Observatory. Kislovodsk Solar Station; Rusia
Fil: Rebolo, Rafael. Instituto de Astrofísica de Canarias; España
Fil: Serra Ricart, Manuel. Instituto de Astrofísica de Canarias; España
Materia
Gamma-ray bursts
Transient sources
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/150128

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network_name_str CONICET Digital (CONICET)
spelling A Reverse Shock in GRB 181201ALaskar, Tanmoyvan Eerten, HendrikSchady, PatriciaMundell, CarolAlexander, Kate D.Duran, Rodolfo BarniolBerger, EdoBolmer, JanChornock, RyanCoppejans, DeanneFong, Wen fai FongGomboc, AndrejaJordana, NuriaKobayashi, ShihoMargutti, RaffaellaMenten, KarlSari, ReemYamazaki, RyoLipunov, VladimirGorbovskoy, EvgeniyKornilov, VictorTyurina, NinaZimnukhov, DmitriyPodestá, Ricardo CésarLevato, Orlando HugoBuckley, DavidTlatov, AndreyRebolo, RafaelSerra Ricart, ManuelGamma-ray burstsTransient sourceshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present comprehensive multiwavelength radio to X-ray observations of GRB 181201A spanning from ≈150 s to ≈163 days after the burst, comprising the first joint ALMA-VLA-GMRT observations of a gamma-ray burst (GRB) afterglow. The radio and millimeter-band data reveal a distinct signature at ≈3.9 days, which we interpret as reverse-shock (RS) emission. Our observations present the first time that a single radio-frequency spectral energy distribution can be decomposed directly into RS and forward shock (FS) components. We perform detailed modeling of the full multiwavelength data set, using Markov Chain Monte Carlo sampling to construct the joint posterior density function of the underlying physical parameters describing the RS and FS synchrotron emission. We uncover and account for all discovered degeneracies in the model parameters. The joint RS-FS modeling reveals a weakly magnetized (σ ≈ 3 × 10-3), mildly relativistic RS, from which we derive an initial bulk Lorentz factor of Γ0 ≈ 103 for the GRB jet. Our results support the hypothesis that low-density environments are conducive to the observability of RS emission. We compare our observations to other events with strong RS detections and find a likely observational bias selecting for longer lasting, nonrelativistic RSs. We present and begin to address new challenges in modeling posed by the present generation of comprehensive, multifrequency data sets.Fil: Laskar, Tanmoy. University of Bath; Reino UnidoFil: van Eerten, Hendrik. University of Bath; Reino UnidoFil: Schady, Patricia. University of Bath; Reino UnidoFil: Mundell, Carol. University of Bath; Reino UnidoFil: Alexander, Kate D.. Northwestern University; Estados UnidosFil: Duran, Rodolfo Barniol. California State University; Estados UnidosFil: Berger, Edo. Harvard University; Estados UnidosFil: Bolmer, Jan. Institut Max Planck fuer Gesellschaft. Max Planck Institute for Extraterrestrial Physics; AlemaniaFil: Chornock, Ryan. Ohio University; Estados UnidosFil: Coppejans, Deanne. Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy; Estados Unidos. Center for Interdisciplinary Exploration and Research in Astrophysics; Estados Unidos. Northwestern University; Estados UnidosFil: Fong, Wen fai Fong. Northwestern University; Estados Unidos. Center for Interdisciplinary Exploration and Research in Astrophysics; Estados UnidosFil: Gomboc, Andreja. University of Nova Gorica. Center for Astrophysics and Cosmology; EsloveniaFil: Jordana, Nuria. University of Bath; Reino UnidoFil: Kobayashi, Shiho. Liverpool John Moores University;Fil: Margutti, Raffaella. Northwestern University; Estados Unidos. Center for Interdisciplinary Exploration and Research in Astrophysics; Estados UnidosFil: Menten, Karl. Max-Planck-Institut für Radioastronomie; AlemaniaFil: Sari, Reem. The Hebrew University of Jerusalem; Israel. The Hebrew University. Racah Institute of Physics; IsraelFil: Yamazaki, Ryo. Aoyama-Gakuin University. Department of Physics and Mathematics; JapónFil: Lipunov, Vladimir. M. V. Lomonosov Moscow State University. Physics Department; RusiaFil: Gorbovskoy, Evgeniy. M. V. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Kornilov, Victor. M. V. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Tyurina, Nina. M. V. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Zimnukhov, Dmitriy. M. V. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Podestá, Ricardo César. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Departamento de Informática. Observatorio Astronómico Félix Aguilar; ArgentinaFil: Levato, Orlando Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; ArgentinaFil: Buckley, David. South African Astrophysical Observatory; SudáfricaFil: Tlatov, Andrey. Pulkovo Observatory. Kislovodsk Solar Station; RusiaFil: Rebolo, Rafael. Instituto de Astrofísica de Canarias; EspañaFil: Serra Ricart, Manuel. Instituto de Astrofísica de Canarias; EspañaIOP Publishing2019-10-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/150128Laskar, Tanmoy; van Eerten, Hendrik; Schady, Patricia; Mundell, Carol; Alexander, Kate D.; et al.; A Reverse Shock in GRB 181201A; IOP Publishing; Astrophysical Journal; 884; 121; 20-10-2019; 112-1290004-637X1538-4357CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/ab40ceinfo:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/ab40ceinfo:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1907.13128info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-12T09:54:49Zoai:ri.conicet.gov.ar:11336/150128instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-11-12 09:54:50.009CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A Reverse Shock in GRB 181201A
title A Reverse Shock in GRB 181201A
spellingShingle A Reverse Shock in GRB 181201A
Laskar, Tanmoy
Gamma-ray bursts
Transient sources
title_short A Reverse Shock in GRB 181201A
title_full A Reverse Shock in GRB 181201A
title_fullStr A Reverse Shock in GRB 181201A
title_full_unstemmed A Reverse Shock in GRB 181201A
title_sort A Reverse Shock in GRB 181201A
dc.creator.none.fl_str_mv Laskar, Tanmoy
van Eerten, Hendrik
Schady, Patricia
Mundell, Carol
Alexander, Kate D.
Duran, Rodolfo Barniol
Berger, Edo
Bolmer, Jan
Chornock, Ryan
Coppejans, Deanne
Fong, Wen fai Fong
Gomboc, Andreja
Jordana, Nuria
Kobayashi, Shiho
Margutti, Raffaella
Menten, Karl
Sari, Reem
Yamazaki, Ryo
Lipunov, Vladimir
Gorbovskoy, Evgeniy
Kornilov, Victor
Tyurina, Nina
Zimnukhov, Dmitriy
Podestá, Ricardo César
Levato, Orlando Hugo
Buckley, David
Tlatov, Andrey
Rebolo, Rafael
Serra Ricart, Manuel
author Laskar, Tanmoy
author_facet Laskar, Tanmoy
van Eerten, Hendrik
Schady, Patricia
Mundell, Carol
Alexander, Kate D.
Duran, Rodolfo Barniol
Berger, Edo
Bolmer, Jan
Chornock, Ryan
Coppejans, Deanne
Fong, Wen fai Fong
Gomboc, Andreja
Jordana, Nuria
Kobayashi, Shiho
Margutti, Raffaella
Menten, Karl
Sari, Reem
Yamazaki, Ryo
Lipunov, Vladimir
Gorbovskoy, Evgeniy
Kornilov, Victor
Tyurina, Nina
Zimnukhov, Dmitriy
Podestá, Ricardo César
Levato, Orlando Hugo
Buckley, David
Tlatov, Andrey
Rebolo, Rafael
Serra Ricart, Manuel
author_role author
author2 van Eerten, Hendrik
Schady, Patricia
Mundell, Carol
Alexander, Kate D.
Duran, Rodolfo Barniol
Berger, Edo
Bolmer, Jan
Chornock, Ryan
Coppejans, Deanne
Fong, Wen fai Fong
Gomboc, Andreja
Jordana, Nuria
Kobayashi, Shiho
Margutti, Raffaella
Menten, Karl
Sari, Reem
Yamazaki, Ryo
Lipunov, Vladimir
Gorbovskoy, Evgeniy
Kornilov, Victor
Tyurina, Nina
Zimnukhov, Dmitriy
Podestá, Ricardo César
Levato, Orlando Hugo
Buckley, David
Tlatov, Andrey
Rebolo, Rafael
Serra Ricart, Manuel
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Gamma-ray bursts
Transient sources
topic Gamma-ray bursts
Transient sources
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present comprehensive multiwavelength radio to X-ray observations of GRB 181201A spanning from ≈150 s to ≈163 days after the burst, comprising the first joint ALMA-VLA-GMRT observations of a gamma-ray burst (GRB) afterglow. The radio and millimeter-band data reveal a distinct signature at ≈3.9 days, which we interpret as reverse-shock (RS) emission. Our observations present the first time that a single radio-frequency spectral energy distribution can be decomposed directly into RS and forward shock (FS) components. We perform detailed modeling of the full multiwavelength data set, using Markov Chain Monte Carlo sampling to construct the joint posterior density function of the underlying physical parameters describing the RS and FS synchrotron emission. We uncover and account for all discovered degeneracies in the model parameters. The joint RS-FS modeling reveals a weakly magnetized (σ ≈ 3 × 10-3), mildly relativistic RS, from which we derive an initial bulk Lorentz factor of Γ0 ≈ 103 for the GRB jet. Our results support the hypothesis that low-density environments are conducive to the observability of RS emission. We compare our observations to other events with strong RS detections and find a likely observational bias selecting for longer lasting, nonrelativistic RSs. We present and begin to address new challenges in modeling posed by the present generation of comprehensive, multifrequency data sets.
Fil: Laskar, Tanmoy. University of Bath; Reino Unido
Fil: van Eerten, Hendrik. University of Bath; Reino Unido
Fil: Schady, Patricia. University of Bath; Reino Unido
Fil: Mundell, Carol. University of Bath; Reino Unido
Fil: Alexander, Kate D.. Northwestern University; Estados Unidos
Fil: Duran, Rodolfo Barniol. California State University; Estados Unidos
Fil: Berger, Edo. Harvard University; Estados Unidos
Fil: Bolmer, Jan. Institut Max Planck fuer Gesellschaft. Max Planck Institute for Extraterrestrial Physics; Alemania
Fil: Chornock, Ryan. Ohio University; Estados Unidos
Fil: Coppejans, Deanne. Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy; Estados Unidos. Center for Interdisciplinary Exploration and Research in Astrophysics; Estados Unidos. Northwestern University; Estados Unidos
Fil: Fong, Wen fai Fong. Northwestern University; Estados Unidos. Center for Interdisciplinary Exploration and Research in Astrophysics; Estados Unidos
Fil: Gomboc, Andreja. University of Nova Gorica. Center for Astrophysics and Cosmology; Eslovenia
Fil: Jordana, Nuria. University of Bath; Reino Unido
Fil: Kobayashi, Shiho. Liverpool John Moores University;
Fil: Margutti, Raffaella. Northwestern University; Estados Unidos. Center for Interdisciplinary Exploration and Research in Astrophysics; Estados Unidos
Fil: Menten, Karl. Max-Planck-Institut für Radioastronomie; Alemania
Fil: Sari, Reem. The Hebrew University of Jerusalem; Israel. The Hebrew University. Racah Institute of Physics; Israel
Fil: Yamazaki, Ryo. Aoyama-Gakuin University. Department of Physics and Mathematics; Japón
Fil: Lipunov, Vladimir. M. V. Lomonosov Moscow State University. Physics Department; Rusia
Fil: Gorbovskoy, Evgeniy. M. V. Lomonosov Moscow State University. Sternberg Astronomical Institute; Rusia
Fil: Kornilov, Victor. M. V. Lomonosov Moscow State University. Sternberg Astronomical Institute; Rusia
Fil: Tyurina, Nina. M. V. Lomonosov Moscow State University. Sternberg Astronomical Institute; Rusia
Fil: Zimnukhov, Dmitriy. M. V. Lomonosov Moscow State University. Sternberg Astronomical Institute; Rusia
Fil: Podestá, Ricardo César. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Departamento de Informática. Observatorio Astronómico Félix Aguilar; Argentina
Fil: Levato, Orlando Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; Argentina
Fil: Buckley, David. South African Astrophysical Observatory; Sudáfrica
Fil: Tlatov, Andrey. Pulkovo Observatory. Kislovodsk Solar Station; Rusia
Fil: Rebolo, Rafael. Instituto de Astrofísica de Canarias; España
Fil: Serra Ricart, Manuel. Instituto de Astrofísica de Canarias; España
description We present comprehensive multiwavelength radio to X-ray observations of GRB 181201A spanning from ≈150 s to ≈163 days after the burst, comprising the first joint ALMA-VLA-GMRT observations of a gamma-ray burst (GRB) afterglow. The radio and millimeter-band data reveal a distinct signature at ≈3.9 days, which we interpret as reverse-shock (RS) emission. Our observations present the first time that a single radio-frequency spectral energy distribution can be decomposed directly into RS and forward shock (FS) components. We perform detailed modeling of the full multiwavelength data set, using Markov Chain Monte Carlo sampling to construct the joint posterior density function of the underlying physical parameters describing the RS and FS synchrotron emission. We uncover and account for all discovered degeneracies in the model parameters. The joint RS-FS modeling reveals a weakly magnetized (σ ≈ 3 × 10-3), mildly relativistic RS, from which we derive an initial bulk Lorentz factor of Γ0 ≈ 103 for the GRB jet. Our results support the hypothesis that low-density environments are conducive to the observability of RS emission. We compare our observations to other events with strong RS detections and find a likely observational bias selecting for longer lasting, nonrelativistic RSs. We present and begin to address new challenges in modeling posed by the present generation of comprehensive, multifrequency data sets.
publishDate 2019
dc.date.none.fl_str_mv 2019-10-20
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/150128
Laskar, Tanmoy; van Eerten, Hendrik; Schady, Patricia; Mundell, Carol; Alexander, Kate D.; et al.; A Reverse Shock in GRB 181201A; IOP Publishing; Astrophysical Journal; 884; 121; 20-10-2019; 112-129
0004-637X
1538-4357
CONICET Digital
CONICET
url http://hdl.handle.net/11336/150128
identifier_str_mv Laskar, Tanmoy; van Eerten, Hendrik; Schady, Patricia; Mundell, Carol; Alexander, Kate D.; et al.; A Reverse Shock in GRB 181201A; IOP Publishing; Astrophysical Journal; 884; 121; 20-10-2019; 112-129
0004-637X
1538-4357
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/ab40ce
info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/ab40ce
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1907.13128
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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