Radio continuum and near-infrared study of the MGRO J2019+37 region

Autores
Paredes, Josep Maria; Martí, Josep; Ishwara Chandra, C. H.; Sánchez Sutil, J. R.; Muñoz Arjonilla, Álvaro José; Moldón, J.; Peracaula, M.; Luque Escamilla, Pedro L.; Zabalza, V.; Bosch Ramon, Valentí; Bordas, Pol; Romero, Gustavo Esteban; Ribó, Marc
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Context. MGRO J2019+37 is an unidentified extended source of very high energy gamma-rays originally reported by the Milagro Collaboration as the brightest TeV source in the Cygnus region. Its extended emission could be powered by either a single or several sources. The GeV pulsar AGL J2020.5+3653, discovered by AGILE and associated with PSR J2021+3651, could contribute to the emission from MGRO J2019+37. Aims. Our aim is to identify radio and near-infrared sources in the field of the extended TeV source MGRO J2019+37, and study potential counterparts to explain its emission. Methods. We surveyed a region of about 6 square degrees with the Giant Metrewave Radio Telescope (GMRT) at the frequency 610 MHz. We also observed the central square degree of this survey in the near-infrared Ks-band using the 3.5 m telescope in Calar Alto. Archival X-ray observations of some specific fields are included. VLBI observations of an interesting radio source were performed. We explored possible scenarios to produce the multi-TeV emission from MGRO J2019+37 and studied which of the sources could be the main particle accelerator. Results. We present a catalogue of 362 radio sources detected with the GMRT in the field of MGRO J2019+37, and the results of a cross-correlation of this catalog with one obtained at near-infrared wavelengths, which contains ∼3 × 105 sources, as well as with available X-ray observations of the region. Some peculiar sources inside the ∼1◦ uncertainty region of the TeV emission from MGRO J2019+37 are discussed in detail, including the pulsar PSR J2021+3651 and its pulsar wind nebula PWN G75.2+0.1, two new radio-jet sources, the H ii region Sh 2-104 containing two star clusters, and the radio source NVSS J202032+363158. We also find that the hadronic scenario is the most likely in case of a single accelerator, and discuss the possible contribution from the sources mentioned above. Conclusions. Although the radio and GeV pulsar PSR J2021+3651 / AGL J2020.5+3653 and its associated pulsar wind nebula PWN G75.2+0.1 can contribute to the emission from MGRO J2019+37, extrapolation of the GeV spectrum does not explain the detected multi-TeV flux. Other sources discussed here could contribute to the emission of the Milagro source.
Fil: Paredes, Josep Maria. Universidad de Barcelona; España
Fil: Martí, Josep. Universidad de Jaén; España
Fil: Ishwara Chandra, C. H.. National Centre for Radio Astrophysics; India
Fil: Sánchez Sutil, J. R.. Universidad de Jaén; España
Fil: Muñoz Arjonilla, Álvaro José. Universidad de Jaén; España
Fil: Moldón, J.. Universidad de Barcelona; España
Fil: Peracaula, M.. Universidad de Girona; España
Fil: Luque Escamilla, Pedro L.. Universidad de Jaén; España
Fil: Zabalza, V.. Universidad de Barcelona; España
Fil: Bosch Ramon, Valentí. Max Planck Institut für Kernphysik; Alemania
Fil: Bordas, Pol. Universidad de Barcelona; España
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
Fil: Ribó, Marc. Universidad de Barcelona; España
Materia
Gamma ray observations
HII regions
Infrared stars
Radio continuum
X-ray binaries
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:11336/29323

id CONICETDig_47ddca7aae56e49fe09759480be61d64
oai_identifier_str oai:ri.conicet.gov.ar:11336/29323
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Radio continuum and near-infrared study of the MGRO J2019+37 regionParedes, Josep MariaMartí, JosepIshwara Chandra, C. H.Sánchez Sutil, J. R.Muñoz Arjonilla, Álvaro JoséMoldón, J.Peracaula, M.Luque Escamilla, Pedro L.Zabalza, V.Bosch Ramon, ValentíBordas, PolRomero, Gustavo EstebanRibó, MarcGamma ray observationsHII regionsInfrared starsRadio continuumX-ray binarieshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context. MGRO J2019+37 is an unidentified extended source of very high energy gamma-rays originally reported by the Milagro Collaboration as the brightest TeV source in the Cygnus region. Its extended emission could be powered by either a single or several sources. The GeV pulsar AGL J2020.5+3653, discovered by AGILE and associated with PSR J2021+3651, could contribute to the emission from MGRO J2019+37. Aims. Our aim is to identify radio and near-infrared sources in the field of the extended TeV source MGRO J2019+37, and study potential counterparts to explain its emission. Methods. We surveyed a region of about 6 square degrees with the Giant Metrewave Radio Telescope (GMRT) at the frequency 610 MHz. We also observed the central square degree of this survey in the near-infrared Ks-band using the 3.5 m telescope in Calar Alto. Archival X-ray observations of some specific fields are included. VLBI observations of an interesting radio source were performed. We explored possible scenarios to produce the multi-TeV emission from MGRO J2019+37 and studied which of the sources could be the main particle accelerator. Results. We present a catalogue of 362 radio sources detected with the GMRT in the field of MGRO J2019+37, and the results of a cross-correlation of this catalog with one obtained at near-infrared wavelengths, which contains ∼3 × 105 sources, as well as with available X-ray observations of the region. Some peculiar sources inside the ∼1◦ uncertainty region of the TeV emission from MGRO J2019+37 are discussed in detail, including the pulsar PSR J2021+3651 and its pulsar wind nebula PWN G75.2+0.1, two new radio-jet sources, the H ii region Sh 2-104 containing two star clusters, and the radio source NVSS J202032+363158. We also find that the hadronic scenario is the most likely in case of a single accelerator, and discuss the possible contribution from the sources mentioned above. Conclusions. Although the radio and GeV pulsar PSR J2021+3651 / AGL J2020.5+3653 and its associated pulsar wind nebula PWN G75.2+0.1 can contribute to the emission from MGRO J2019+37, extrapolation of the GeV spectrum does not explain the detected multi-TeV flux. Other sources discussed here could contribute to the emission of the Milagro source.Fil: Paredes, Josep Maria. Universidad de Barcelona; EspañaFil: Martí, Josep. Universidad de Jaén; EspañaFil: Ishwara Chandra, C. H.. National Centre for Radio Astrophysics; IndiaFil: Sánchez Sutil, J. R.. Universidad de Jaén; EspañaFil: Muñoz Arjonilla, Álvaro José. Universidad de Jaén; EspañaFil: Moldón, J.. Universidad de Barcelona; EspañaFil: Peracaula, M.. Universidad de Girona; EspañaFil: Luque Escamilla, Pedro L.. Universidad de Jaén; EspañaFil: Zabalza, V.. Universidad de Barcelona; EspañaFil: Bosch Ramon, Valentí. Max Planck Institut für Kernphysik; AlemaniaFil: Bordas, Pol. Universidad de Barcelona; EspañaFil: 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; ArgentinaFil: Ribó, Marc. Universidad de Barcelona; EspañaEDP Sciences2009-11info: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/11336/29323Paredes, Josep Maria; Martí, Josep; Ishwara Chandra, C. H.; Sánchez Sutil, J. R.; Muñoz Arjonilla, Álvaro José; et al.; Radio continuum and near-infrared study of the MGRO J2019+37 region; EDP Sciences; Astronomy and Astrophysics; 507; 1; 11-2009; 241-2500004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.aanda.org/component/article?access=bibcode&bibcode=&bibcode=2009A%2526A...507..241PFULinfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/200912448info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:21:27Zoai:ri.conicet.gov.ar:11336/29323instacron: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 10:21:27.629CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Radio continuum and near-infrared study of the MGRO J2019+37 region
title Radio continuum and near-infrared study of the MGRO J2019+37 region
spellingShingle Radio continuum and near-infrared study of the MGRO J2019+37 region
Paredes, Josep Maria
Gamma ray observations
HII regions
Infrared stars
Radio continuum
X-ray binaries
title_short Radio continuum and near-infrared study of the MGRO J2019+37 region
title_full Radio continuum and near-infrared study of the MGRO J2019+37 region
title_fullStr Radio continuum and near-infrared study of the MGRO J2019+37 region
title_full_unstemmed Radio continuum and near-infrared study of the MGRO J2019+37 region
title_sort Radio continuum and near-infrared study of the MGRO J2019+37 region
dc.creator.none.fl_str_mv Paredes, Josep Maria
Martí, Josep
Ishwara Chandra, C. H.
Sánchez Sutil, J. R.
Muñoz Arjonilla, Álvaro José
Moldón, J.
Peracaula, M.
Luque Escamilla, Pedro L.
Zabalza, V.
Bosch Ramon, Valentí
Bordas, Pol
Romero, Gustavo Esteban
Ribó, Marc
author Paredes, Josep Maria
author_facet Paredes, Josep Maria
Martí, Josep
Ishwara Chandra, C. H.
Sánchez Sutil, J. R.
Muñoz Arjonilla, Álvaro José
Moldón, J.
Peracaula, M.
Luque Escamilla, Pedro L.
Zabalza, V.
Bosch Ramon, Valentí
Bordas, Pol
Romero, Gustavo Esteban
Ribó, Marc
author_role author
author2 Martí, Josep
Ishwara Chandra, C. H.
Sánchez Sutil, J. R.
Muñoz Arjonilla, Álvaro José
Moldón, J.
Peracaula, M.
Luque Escamilla, Pedro L.
Zabalza, V.
Bosch Ramon, Valentí
Bordas, Pol
Romero, Gustavo Esteban
Ribó, Marc
author2_role author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Gamma ray observations
HII regions
Infrared stars
Radio continuum
X-ray binaries
topic Gamma ray observations
HII regions
Infrared stars
Radio continuum
X-ray binaries
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Context. MGRO J2019+37 is an unidentified extended source of very high energy gamma-rays originally reported by the Milagro Collaboration as the brightest TeV source in the Cygnus region. Its extended emission could be powered by either a single or several sources. The GeV pulsar AGL J2020.5+3653, discovered by AGILE and associated with PSR J2021+3651, could contribute to the emission from MGRO J2019+37. Aims. Our aim is to identify radio and near-infrared sources in the field of the extended TeV source MGRO J2019+37, and study potential counterparts to explain its emission. Methods. We surveyed a region of about 6 square degrees with the Giant Metrewave Radio Telescope (GMRT) at the frequency 610 MHz. We also observed the central square degree of this survey in the near-infrared Ks-band using the 3.5 m telescope in Calar Alto. Archival X-ray observations of some specific fields are included. VLBI observations of an interesting radio source were performed. We explored possible scenarios to produce the multi-TeV emission from MGRO J2019+37 and studied which of the sources could be the main particle accelerator. Results. We present a catalogue of 362 radio sources detected with the GMRT in the field of MGRO J2019+37, and the results of a cross-correlation of this catalog with one obtained at near-infrared wavelengths, which contains ∼3 × 105 sources, as well as with available X-ray observations of the region. Some peculiar sources inside the ∼1◦ uncertainty region of the TeV emission from MGRO J2019+37 are discussed in detail, including the pulsar PSR J2021+3651 and its pulsar wind nebula PWN G75.2+0.1, two new radio-jet sources, the H ii region Sh 2-104 containing two star clusters, and the radio source NVSS J202032+363158. We also find that the hadronic scenario is the most likely in case of a single accelerator, and discuss the possible contribution from the sources mentioned above. Conclusions. Although the radio and GeV pulsar PSR J2021+3651 / AGL J2020.5+3653 and its associated pulsar wind nebula PWN G75.2+0.1 can contribute to the emission from MGRO J2019+37, extrapolation of the GeV spectrum does not explain the detected multi-TeV flux. Other sources discussed here could contribute to the emission of the Milagro source.
Fil: Paredes, Josep Maria. Universidad de Barcelona; España
Fil: Martí, Josep. Universidad de Jaén; España
Fil: Ishwara Chandra, C. H.. National Centre for Radio Astrophysics; India
Fil: Sánchez Sutil, J. R.. Universidad de Jaén; España
Fil: Muñoz Arjonilla, Álvaro José. Universidad de Jaén; España
Fil: Moldón, J.. Universidad de Barcelona; España
Fil: Peracaula, M.. Universidad de Girona; España
Fil: Luque Escamilla, Pedro L.. Universidad de Jaén; España
Fil: Zabalza, V.. Universidad de Barcelona; España
Fil: Bosch Ramon, Valentí. Max Planck Institut für Kernphysik; Alemania
Fil: Bordas, Pol. Universidad de Barcelona; España
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
Fil: Ribó, Marc. Universidad de Barcelona; España
description Context. MGRO J2019+37 is an unidentified extended source of very high energy gamma-rays originally reported by the Milagro Collaboration as the brightest TeV source in the Cygnus region. Its extended emission could be powered by either a single or several sources. The GeV pulsar AGL J2020.5+3653, discovered by AGILE and associated with PSR J2021+3651, could contribute to the emission from MGRO J2019+37. Aims. Our aim is to identify radio and near-infrared sources in the field of the extended TeV source MGRO J2019+37, and study potential counterparts to explain its emission. Methods. We surveyed a region of about 6 square degrees with the Giant Metrewave Radio Telescope (GMRT) at the frequency 610 MHz. We also observed the central square degree of this survey in the near-infrared Ks-band using the 3.5 m telescope in Calar Alto. Archival X-ray observations of some specific fields are included. VLBI observations of an interesting radio source were performed. We explored possible scenarios to produce the multi-TeV emission from MGRO J2019+37 and studied which of the sources could be the main particle accelerator. Results. We present a catalogue of 362 radio sources detected with the GMRT in the field of MGRO J2019+37, and the results of a cross-correlation of this catalog with one obtained at near-infrared wavelengths, which contains ∼3 × 105 sources, as well as with available X-ray observations of the region. Some peculiar sources inside the ∼1◦ uncertainty region of the TeV emission from MGRO J2019+37 are discussed in detail, including the pulsar PSR J2021+3651 and its pulsar wind nebula PWN G75.2+0.1, two new radio-jet sources, the H ii region Sh 2-104 containing two star clusters, and the radio source NVSS J202032+363158. We also find that the hadronic scenario is the most likely in case of a single accelerator, and discuss the possible contribution from the sources mentioned above. Conclusions. Although the radio and GeV pulsar PSR J2021+3651 / AGL J2020.5+3653 and its associated pulsar wind nebula PWN G75.2+0.1 can contribute to the emission from MGRO J2019+37, extrapolation of the GeV spectrum does not explain the detected multi-TeV flux. Other sources discussed here could contribute to the emission of the Milagro source.
publishDate 2009
dc.date.none.fl_str_mv 2009-11
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/11336/29323
Paredes, Josep Maria; Martí, Josep; Ishwara Chandra, C. H.; Sánchez Sutil, J. R.; Muñoz Arjonilla, Álvaro José; et al.; Radio continuum and near-infrared study of the MGRO J2019+37 region; EDP Sciences; Astronomy and Astrophysics; 507; 1; 11-2009; 241-250
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/29323
identifier_str_mv Paredes, Josep Maria; Martí, Josep; Ishwara Chandra, C. H.; Sánchez Sutil, J. R.; Muñoz Arjonilla, Álvaro José; et al.; Radio continuum and near-infrared study of the MGRO J2019+37 region; EDP Sciences; Astronomy and Astrophysics; 507; 1; 11-2009; 241-250
0004-6361
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.aanda.org/component/article?access=bibcode&bibcode=&bibcode=2009A%2526A...507..241PFUL
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/200912448
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 EDP Sciences
publisher.none.fl_str_mv EDP Sciences
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
_version_ 1844614202741751808
score 13.070432