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
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/29323
Ver los metadatos del registro completo
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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 Técnicas2025-10-15T15:18:34Zoai: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:34982025-10-15 15:18:34.411CONICET 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. |
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2009 |
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2009-11 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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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 |
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eng |
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