A Nonthermal Bomb Explains the Near-infrared Superflare of Sgr A&z.ast

Autores
Gutiérrez, Eduardo Mario; Nemmen, Rodrigo; Cafardo, Fabio
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Galactic center supermassive black hole, Sgr A, has experienced a strong, unprecedented flare in 2019 May when its near-infrared luminosity reached much brighter levels than ever measured. We argue that an explosive event of particle acceleration to nonthermal energies in the innermost parts of the accretion flow- A nonthermal bomb-explains the near-infrared light curve. We discuss potential mechanisms that could explain this event such as magnetic reconnection and relativistic turbulence acceleration. Multiwavelength monitoring of such superflares in radio, infrared, and X-rays should allow a concrete test of the nonthermal bomb model and put better constraints on the mechanism that triggered the bomb.
Fil: Gutiérrez, Eduardo Mario. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
Fil: Nemmen, Rodrigo. Universidade de Sao Paulo; Brasil
Fil: Cafardo, Fabio. Universidade de Sao Paulo; Brasil
Materia
BLACK HOLE PHYSICS
RELATIVISTIC PARTICLES
RADIATION MECHANISMS: NONTHERMAL
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:11336/121347
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A Nonthermal Bomb Explains the Near-infrared Superflare of Sgr A&z.astGutiérrez, Eduardo MarioNemmen, RodrigoCafardo, FabioBLACK HOLE PHYSICSRELATIVISTIC PARTICLESRADIATION MECHANISMS: NONTHERMALhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The Galactic center supermassive black hole, Sgr A, has experienced a strong, unprecedented flare in 2019 May when its near-infrared luminosity reached much brighter levels than ever measured. We argue that an explosive event of particle acceleration to nonthermal energies in the innermost parts of the accretion flow- A nonthermal bomb-explains the near-infrared light curve. We discuss potential mechanisms that could explain this event such as magnetic reconnection and relativistic turbulence acceleration. Multiwavelength monitoring of such superflares in radio, infrared, and X-rays should allow a concrete test of the nonthermal bomb model and put better constraints on the mechanism that triggered the bomb.Fil: Gutiérrez, Eduardo Mario. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; ArgentinaFil: Nemmen, Rodrigo. Universidade de Sao Paulo; BrasilFil: Cafardo, Fabio. Universidade de Sao Paulo; BrasilInstitute of Physics Publishing2020-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/121347Gutiérrez, Eduardo Mario; Nemmen, Rodrigo; Cafardo, Fabio; A Nonthermal Bomb Explains the Near-infrared Superflare of Sgr A&z.ast; Institute of Physics Publishing; Astrophysical Journal Letters; 891; 2; 3-2020; L362041-82052041-8213CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3847/2041-8213/ab7998info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/2041-8213/ab7998info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:52:10Zoai:ri.conicet.gov.ar:11336/121347instacron: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:34982025-10-22 11:52:10.431CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A Nonthermal Bomb Explains the Near-infrared Superflare of Sgr A&z.ast
title A Nonthermal Bomb Explains the Near-infrared Superflare of Sgr A&z.ast
spellingShingle A Nonthermal Bomb Explains the Near-infrared Superflare of Sgr A&z.ast
Gutiérrez, Eduardo Mario
BLACK HOLE PHYSICS
RELATIVISTIC PARTICLES
RADIATION MECHANISMS: NONTHERMAL
title_short A Nonthermal Bomb Explains the Near-infrared Superflare of Sgr A&z.ast
title_full A Nonthermal Bomb Explains the Near-infrared Superflare of Sgr A&z.ast
title_fullStr A Nonthermal Bomb Explains the Near-infrared Superflare of Sgr A&z.ast
title_full_unstemmed A Nonthermal Bomb Explains the Near-infrared Superflare of Sgr A&z.ast
title_sort A Nonthermal Bomb Explains the Near-infrared Superflare of Sgr A&z.ast
dc.creator.none.fl_str_mv Gutiérrez, Eduardo Mario
Nemmen, Rodrigo
Cafardo, Fabio
author Gutiérrez, Eduardo Mario
author_facet Gutiérrez, Eduardo Mario
Nemmen, Rodrigo
Cafardo, Fabio
author_role author
author2 Nemmen, Rodrigo
Cafardo, Fabio
author2_role author
author
dc.subject.none.fl_str_mv BLACK HOLE PHYSICS
RELATIVISTIC PARTICLES
RADIATION MECHANISMS: NONTHERMAL
topic BLACK HOLE PHYSICS
RELATIVISTIC PARTICLES
RADIATION MECHANISMS: NONTHERMAL
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Galactic center supermassive black hole, Sgr A, has experienced a strong, unprecedented flare in 2019 May when its near-infrared luminosity reached much brighter levels than ever measured. We argue that an explosive event of particle acceleration to nonthermal energies in the innermost parts of the accretion flow- A nonthermal bomb-explains the near-infrared light curve. We discuss potential mechanisms that could explain this event such as magnetic reconnection and relativistic turbulence acceleration. Multiwavelength monitoring of such superflares in radio, infrared, and X-rays should allow a concrete test of the nonthermal bomb model and put better constraints on the mechanism that triggered the bomb.
Fil: Gutiérrez, Eduardo Mario. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
Fil: Nemmen, Rodrigo. Universidade de Sao Paulo; Brasil
Fil: Cafardo, Fabio. Universidade de Sao Paulo; Brasil
description The Galactic center supermassive black hole, Sgr A, has experienced a strong, unprecedented flare in 2019 May when its near-infrared luminosity reached much brighter levels than ever measured. We argue that an explosive event of particle acceleration to nonthermal energies in the innermost parts of the accretion flow- A nonthermal bomb-explains the near-infrared light curve. We discuss potential mechanisms that could explain this event such as magnetic reconnection and relativistic turbulence acceleration. Multiwavelength monitoring of such superflares in radio, infrared, and X-rays should allow a concrete test of the nonthermal bomb model and put better constraints on the mechanism that triggered the bomb.
publishDate 2020
dc.date.none.fl_str_mv 2020-03
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/11336/121347
Gutiérrez, Eduardo Mario; Nemmen, Rodrigo; Cafardo, Fabio; A Nonthermal Bomb Explains the Near-infrared Superflare of Sgr A&z.ast; Institute of Physics Publishing; Astrophysical Journal Letters; 891; 2; 3-2020; L36
2041-8205
2041-8213
CONICET Digital
CONICET
url http://hdl.handle.net/11336/121347
identifier_str_mv Gutiérrez, Eduardo Mario; Nemmen, Rodrigo; Cafardo, Fabio; A Nonthermal Bomb Explains the Near-infrared Superflare of Sgr A&z.ast; Institute of Physics Publishing; Astrophysical Journal Letters; 891; 2; 3-2020; L36
2041-8205
2041-8213
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3847/2041-8213/ab7998
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/2041-8213/ab7998
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
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:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
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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score 12.982451

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