Study of Wolf-Rayet Stars Using uGMRT

Autores
Saha, Anindya; Tej, Anandmayee; del Palacio, Santiago; De Becker, Michaël; Benaglia, Paula; Ishwara Chandra, C. H.; Prajapati, Prachi
Año de publicación
2024
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
In recent years, systems involving massive stars with large wind kinetic power have been considered as promising sites for investigating relativistic particle acceleration in low radio frequencies. With this aim, we observed two Wolf-Rayet systems, WR 114 and WR 142, using upgraded Giant Meterwave Radio Telescope observations in Band 4 (550–950 MHz) and Band 5 (1050–1450 MHz). None of the targets was detected at these frequencies. Based on the non-detection, we report 3 upper limits to the radio flux densities at 735 and 1260 MHz (123 and 66 Jy for WR 114, and 111 and 96 Jy for WR 142, respectively). Plausible scenarios to interpret this non-detection are presented.
Fil: Saha, Anindya. Indian Institute Of Space Science And Technology; India
Fil: Tej, Anandmayee. Indian Institute Of Space Science And Technology; India
Fil: del Palacio, Santiago. Chalmers University of Technology; Suecia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: De Becker, Michaël. Université de Liège; Bélgica
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: Ishwara Chandra, C. H.. National Centre For Radio Astrophysics; India
Fil: Prajapati, Prachi. Indian Institute Of Space Science And Technology; India
3rd BINA workshop: Scientific potential of the Indo-Belgian cooperation
Nainital
India
Graphic Era Hill University
Materia
STARS: WOLF-RAYET STARS
RADIO CONTINUUM: ISM
RADIATION MECHANISM: THERMAL
RADIATION MECHANISMS: NON-THERMAL
STARS: WR114
STARS: WR142
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:11336/240067
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/240067
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Study of Wolf-Rayet Stars Using uGMRTSaha, AnindyaTej, Anandmayeedel Palacio, SantiagoDe Becker, MichaëlBenaglia, PaulaIshwara Chandra, C. H.Prajapati, PrachiSTARS: WOLF-RAYET STARSRADIO CONTINUUM: ISMRADIATION MECHANISM: THERMALRADIATION MECHANISMS: NON-THERMALSTARS: WR114STARS: WR142https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In recent years, systems involving massive stars with large wind kinetic power have been considered as promising sites for investigating relativistic particle acceleration in low radio frequencies. With this aim, we observed two Wolf-Rayet systems, WR 114 and WR 142, using upgraded Giant Meterwave Radio Telescope observations in Band 4 (550–950 MHz) and Band 5 (1050–1450 MHz). None of the targets was detected at these frequencies. Based on the non-detection, we report 3 upper limits to the radio flux densities at 735 and 1260 MHz (123 and 66 Jy for WR 114, and 111 and 96 Jy for WR 142, respectively). Plausible scenarios to interpret this non-detection are presented.Fil: Saha, Anindya. Indian Institute Of Space Science And Technology; IndiaFil: Tej, Anandmayee. Indian Institute Of Space Science And Technology; IndiaFil: del Palacio, Santiago. Chalmers University of Technology; Suecia. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: De Becker, Michaël. Université de Liège; BélgicaFil: 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: Ishwara Chandra, C. H.. National Centre For Radio Astrophysics; IndiaFil: Prajapati, Prachi. Indian Institute Of Space Science And Technology; India3rd BINA workshop: Scientific potential of the Indo-Belgian cooperationNainitalIndiaGraphic Era Hill UniversityULiege2024info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectWorkshopJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/240067Study of Wolf-Rayet Stars Using uGMRT; 3rd BINA workshop: Scientific potential of the Indo-Belgian cooperation; Nainital; India; 2023; 491-5100037-95651783-5720CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://popups.ulg.be/0037-9565/index.php?id=11764info:eu-repo/semantics/altIdentifier/url/https://aries.res.in/BINA-WorkshopInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:09:37Zoai:ri.conicet.gov.ar:11336/240067instacron: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 10:09:38.232CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Study of Wolf-Rayet Stars Using uGMRT
title Study of Wolf-Rayet Stars Using uGMRT
spellingShingle Study of Wolf-Rayet Stars Using uGMRT
Saha, Anindya
STARS: WOLF-RAYET STARS
RADIO CONTINUUM: ISM
RADIATION MECHANISM: THERMAL
RADIATION MECHANISMS: NON-THERMAL
STARS: WR114
STARS: WR142
title_short Study of Wolf-Rayet Stars Using uGMRT
title_full Study of Wolf-Rayet Stars Using uGMRT
title_fullStr Study of Wolf-Rayet Stars Using uGMRT
title_full_unstemmed Study of Wolf-Rayet Stars Using uGMRT
title_sort Study of Wolf-Rayet Stars Using uGMRT
dc.creator.none.fl_str_mv Saha, Anindya
Tej, Anandmayee
del Palacio, Santiago
De Becker, Michaël
Benaglia, Paula
Ishwara Chandra, C. H.
Prajapati, Prachi
author Saha, Anindya
author_facet Saha, Anindya
Tej, Anandmayee
del Palacio, Santiago
De Becker, Michaël
Benaglia, Paula
Ishwara Chandra, C. H.
Prajapati, Prachi
author_role author
author2 Tej, Anandmayee
del Palacio, Santiago
De Becker, Michaël
Benaglia, Paula
Ishwara Chandra, C. H.
Prajapati, Prachi
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv STARS: WOLF-RAYET STARS
RADIO CONTINUUM: ISM
RADIATION MECHANISM: THERMAL
RADIATION MECHANISMS: NON-THERMAL
STARS: WR114
STARS: WR142
topic STARS: WOLF-RAYET STARS
RADIO CONTINUUM: ISM
RADIATION MECHANISM: THERMAL
RADIATION MECHANISMS: NON-THERMAL
STARS: WR114
STARS: WR142
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In recent years, systems involving massive stars with large wind kinetic power have been considered as promising sites for investigating relativistic particle acceleration in low radio frequencies. With this aim, we observed two Wolf-Rayet systems, WR 114 and WR 142, using upgraded Giant Meterwave Radio Telescope observations in Band 4 (550–950 MHz) and Band 5 (1050–1450 MHz). None of the targets was detected at these frequencies. Based on the non-detection, we report 3 upper limits to the radio flux densities at 735 and 1260 MHz (123 and 66 Jy for WR 114, and 111 and 96 Jy for WR 142, respectively). Plausible scenarios to interpret this non-detection are presented.
Fil: Saha, Anindya. Indian Institute Of Space Science And Technology; India
Fil: Tej, Anandmayee. Indian Institute Of Space Science And Technology; India
Fil: del Palacio, Santiago. Chalmers University of Technology; Suecia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: De Becker, Michaël. Université de Liège; Bélgica
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: Ishwara Chandra, C. H.. National Centre For Radio Astrophysics; India
Fil: Prajapati, Prachi. Indian Institute Of Space Science And Technology; India
3rd BINA workshop: Scientific potential of the Indo-Belgian cooperation
Nainital
India
Graphic Era Hill University
description In recent years, systems involving massive stars with large wind kinetic power have been considered as promising sites for investigating relativistic particle acceleration in low radio frequencies. With this aim, we observed two Wolf-Rayet systems, WR 114 and WR 142, using upgraded Giant Meterwave Radio Telescope observations in Band 4 (550–950 MHz) and Band 5 (1050–1450 MHz). None of the targets was detected at these frequencies. Based on the non-detection, we report 3 upper limits to the radio flux densities at 735 and 1260 MHz (123 and 66 Jy for WR 114, and 111 and 96 Jy for WR 142, respectively). Plausible scenarios to interpret this non-detection are presented.
publishDate 2024
dc.date.none.fl_str_mv 2024
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Workshop
Journal
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/240067
Study of Wolf-Rayet Stars Using uGMRT; 3rd BINA workshop: Scientific potential of the Indo-Belgian cooperation; Nainital; India; 2023; 491-510
0037-9565
1783-5720
CONICET Digital
CONICET
url http://hdl.handle.net/11336/240067
identifier_str_mv Study of Wolf-Rayet Stars Using uGMRT; 3rd BINA workshop: Scientific potential of the Indo-Belgian cooperation; Nainital; India; 2023; 491-510
0037-9565
1783-5720
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://popups.ulg.be/0037-9565/index.php?id=11764
info:eu-repo/semantics/altIdentifier/url/https://aries.res.in/BINA-Workshop
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.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv ULiege
publisher.none.fl_str_mv ULiege
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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