Deeper Chandra follow-up of Cygnus TeV source perpetuates mystery

Autores
Butt, Yousaf M.; Drake, Jeremy; Benaglia, Paula; Combi, Jorge Ariel; Dame, Thomas; Miniati, Francesco; Romero, Gustavo Esteban
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A 50 ks Chandra observation of the unidentified TeV source in Cygnus reported by the HEGRA collaboration reveals no obvious diffuse X-ray counterpart. However, 240 pointlike X-ray sources are detected within or nearby the extended TeV J2032+4130 source region, of which at least 36 are massive stars and two may be radio emitters. That the HEGRA source is a composite, having as a counterpart the multiple pointlike X-ray sources we observe, cannot be ruled out. Indeed, the distribution of pointlike X-ray sources appears nonuniform and concentrated broadly within the extent of the TeV source region. We offer a hypothesis for the origin of the very high energy gamma-ray emission in Cyg OB2 based on the local acceleration of TeV-range cosmic rays and the differential distribution of OB versus less massive stars in this association.
Fil: Butt, Yousaf M.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Drake, Jeremy. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Benaglia, Paula. 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: Combi, Jorge Ariel. Universidad de Jaén; España
Fil: Dame, Thomas. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Miniati, Francesco. Physics Department, ETH Zürich; Suiza
Fil: Romero, Gustavo Esteban. 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
Materia
Gamma ray sources
Chandra observations
Cygnus
X-ray 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:11336/27422
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Deeper Chandra follow-up of Cygnus TeV source perpetuates mysteryButt, Yousaf M.Drake, JeremyBenaglia, PaulaCombi, Jorge ArielDame, ThomasMiniati, FrancescoRomero, Gustavo EstebanGamma ray sourcesChandra observationsCygnusX-ray sourceshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1A 50 ks Chandra observation of the unidentified TeV source in Cygnus reported by the HEGRA collaboration reveals no obvious diffuse X-ray counterpart. However, 240 pointlike X-ray sources are detected within or nearby the extended TeV J2032+4130 source region, of which at least 36 are massive stars and two may be radio emitters. That the HEGRA source is a composite, having as a counterpart the multiple pointlike X-ray sources we observe, cannot be ruled out. Indeed, the distribution of pointlike X-ray sources appears nonuniform and concentrated broadly within the extent of the TeV source region. We offer a hypothesis for the origin of the very high energy gamma-ray emission in Cyg OB2 based on the local acceleration of TeV-range cosmic rays and the differential distribution of OB versus less massive stars in this association.Fil: Butt, Yousaf M.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Drake, Jeremy. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Benaglia, Paula. 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: Combi, Jorge Ariel. Universidad de Jaén; EspañaFil: Dame, Thomas. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Miniati, Francesco. Physics Department, ETH Zürich; SuizaFil: Romero, Gustavo Esteban. 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; ArgentinaIOP Publishing2006-12info: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/11336/27422Butt, Yousaf M.; Drake, Jeremy; Benaglia, Paula; Combi, Jorge Ariel; Dame, Thomas; et al.; Deeper Chandra follow-up of Cygnus TeV source perpetuates mystery; IOP Publishing; Astrophysical Journal; 643; 1; 12-2006; 238-2440004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1086/502642info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1086/502642/metainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:48:14Zoai:ri.conicet.gov.ar:11336/27422instacron: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:34982025-09-29 09:48:14.86CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Deeper Chandra follow-up of Cygnus TeV source perpetuates mystery
title Deeper Chandra follow-up of Cygnus TeV source perpetuates mystery
spellingShingle Deeper Chandra follow-up of Cygnus TeV source perpetuates mystery
Butt, Yousaf M.
Gamma ray sources
Chandra observations
Cygnus
X-ray sources
title_short Deeper Chandra follow-up of Cygnus TeV source perpetuates mystery
title_full Deeper Chandra follow-up of Cygnus TeV source perpetuates mystery
title_fullStr Deeper Chandra follow-up of Cygnus TeV source perpetuates mystery
title_full_unstemmed Deeper Chandra follow-up of Cygnus TeV source perpetuates mystery
title_sort Deeper Chandra follow-up of Cygnus TeV source perpetuates mystery
dc.creator.none.fl_str_mv Butt, Yousaf M.
Drake, Jeremy
Benaglia, Paula
Combi, Jorge Ariel
Dame, Thomas
Miniati, Francesco
Romero, Gustavo Esteban
author Butt, Yousaf M.
author_facet Butt, Yousaf M.
Drake, Jeremy
Benaglia, Paula
Combi, Jorge Ariel
Dame, Thomas
Miniati, Francesco
Romero, Gustavo Esteban
author_role author
author2 Drake, Jeremy
Benaglia, Paula
Combi, Jorge Ariel
Dame, Thomas
Miniati, Francesco
Romero, Gustavo Esteban
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Gamma ray sources
Chandra observations
Cygnus
X-ray sources
topic Gamma ray sources
Chandra observations
Cygnus
X-ray 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 A 50 ks Chandra observation of the unidentified TeV source in Cygnus reported by the HEGRA collaboration reveals no obvious diffuse X-ray counterpart. However, 240 pointlike X-ray sources are detected within or nearby the extended TeV J2032+4130 source region, of which at least 36 are massive stars and two may be radio emitters. That the HEGRA source is a composite, having as a counterpart the multiple pointlike X-ray sources we observe, cannot be ruled out. Indeed, the distribution of pointlike X-ray sources appears nonuniform and concentrated broadly within the extent of the TeV source region. We offer a hypothesis for the origin of the very high energy gamma-ray emission in Cyg OB2 based on the local acceleration of TeV-range cosmic rays and the differential distribution of OB versus less massive stars in this association.
Fil: Butt, Yousaf M.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Drake, Jeremy. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Benaglia, Paula. 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: Combi, Jorge Ariel. Universidad de Jaén; España
Fil: Dame, Thomas. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Miniati, Francesco. Physics Department, ETH Zürich; Suiza
Fil: Romero, Gustavo Esteban. 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
description A 50 ks Chandra observation of the unidentified TeV source in Cygnus reported by the HEGRA collaboration reveals no obvious diffuse X-ray counterpart. However, 240 pointlike X-ray sources are detected within or nearby the extended TeV J2032+4130 source region, of which at least 36 are massive stars and two may be radio emitters. That the HEGRA source is a composite, having as a counterpart the multiple pointlike X-ray sources we observe, cannot be ruled out. Indeed, the distribution of pointlike X-ray sources appears nonuniform and concentrated broadly within the extent of the TeV source region. We offer a hypothesis for the origin of the very high energy gamma-ray emission in Cyg OB2 based on the local acceleration of TeV-range cosmic rays and the differential distribution of OB versus less massive stars in this association.
publishDate 2006
dc.date.none.fl_str_mv 2006-12
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/11336/27422
Butt, Yousaf M.; Drake, Jeremy; Benaglia, Paula; Combi, Jorge Ariel; Dame, Thomas; et al.; Deeper Chandra follow-up of Cygnus TeV source perpetuates mystery; IOP Publishing; Astrophysical Journal; 643; 1; 12-2006; 238-244
0004-637X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/27422
identifier_str_mv Butt, Yousaf M.; Drake, Jeremy; Benaglia, Paula; Combi, Jorge Ariel; Dame, Thomas; et al.; Deeper Chandra follow-up of Cygnus TeV source perpetuates mystery; IOP Publishing; Astrophysical Journal; 643; 1; 12-2006; 238-244
0004-637X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1086/502642
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1086/502642/meta
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)
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 13.070432

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