Powerful Yet Lonely: Is 3C 297 a High-redshift Fossil Group?

Autores
Missaglia, Valentina; Madrid, Juan P.; Schirmer, Mischa; Massaro, Francesco; Rodríguez Ardila, Alberto; Donzelli, Carlos Jose; Valencia, Martell; Paggi, Alessandro; Kraft, Ralph P.; Stuardi, Chiara; Wilkes, Belinda J.
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The environment of the high-redshift (z = 1.408), powerful radio-loud galaxy 3C 297 has several distinctive features of a galaxy cluster. Among them, a characteristic halo of hot gas revealed by Chandra X-ray observations. In addition, a radio map obtained with the Very Large Array shows a bright hotspot in the northwestern direction, created by the interaction of the active galactic nucleus (AGN) jet arising from 3C 297 with its environment. In the X-ray images, emission cospatial with the northwestern radio lobe is detected, and peaks at the position of the radio hotspot. The extended, complex X-ray emission observed with our new Chandra data is largely unrelated to its radio structure. Despite having attributes of a galaxy cluster, no companion galaxies have been identified from 39 new spectra of neighboring targets of 3C 297 obtained with the Gemini Multi-Object Spectrograph. None of the 19 galaxies for which a redshift was determined lies at the same distance as 3C 297. The optical spectral analysis of the new Gemini spectrum of 3C 297 reveals an isolated Type II radio-loud AGN. We also detected line broadening in [O II] λ3728 with a FWHM about 1700 km s-1 and possible line shifts of up to 500-600 km s-1. We postulate that the host galaxy of 3C 297 is a fossil group, in which most of the stellar mass has merged into a single object, leaving behind an X-ray halo.
Fil: Missaglia, Valentina. Università di Torino; Italia
Fil: Madrid, Juan P.. University Of Texas At Brownsville; Estados Unidos
Fil: Schirmer, Mischa. University Of Texas At Brownsville; Estados Unidos
Fil: Massaro, Francesco. Istituto Nazionale di Astrofisica; Italia
Fil: Rodríguez Ardila, Alberto. No especifíca;
Fil: Donzelli, Carlos Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
Fil: Valencia, Martell. Istituto Nazionale di Astrofisica; Italia
Fil: Paggi, Alessandro. Istituto Nazionale di Astrofisica; Italia
Fil: Kraft, Ralph P.. Istituto Nazionale di Astrofisica; Italia
Fil: Stuardi, Chiara. Istituto Nazionale di Astrofisica; Italia
Fil: Wilkes, Belinda J.. Istituto Nazionale di Astrofisica; Italia
Materia
Núcleos activos
Cúmulos de galaxias
Medio interestelar
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/267842
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/267842
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Powerful Yet Lonely: Is 3C 297 a High-redshift Fossil Group?Missaglia, ValentinaMadrid, Juan P.Schirmer, MischaMassaro, FrancescoRodríguez Ardila, AlbertoDonzelli, Carlos JoseValencia, MartellPaggi, AlessandroKraft, Ralph P.Stuardi, ChiaraWilkes, Belinda J.Núcleos activosCúmulos de galaxiasMedio interestelarhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The environment of the high-redshift (z = 1.408), powerful radio-loud galaxy 3C 297 has several distinctive features of a galaxy cluster. Among them, a characteristic halo of hot gas revealed by Chandra X-ray observations. In addition, a radio map obtained with the Very Large Array shows a bright hotspot in the northwestern direction, created by the interaction of the active galactic nucleus (AGN) jet arising from 3C 297 with its environment. In the X-ray images, emission cospatial with the northwestern radio lobe is detected, and peaks at the position of the radio hotspot. The extended, complex X-ray emission observed with our new Chandra data is largely unrelated to its radio structure. Despite having attributes of a galaxy cluster, no companion galaxies have been identified from 39 new spectra of neighboring targets of 3C 297 obtained with the Gemini Multi-Object Spectrograph. None of the 19 galaxies for which a redshift was determined lies at the same distance as 3C 297. The optical spectral analysis of the new Gemini spectrum of 3C 297 reveals an isolated Type II radio-loud AGN. We also detected line broadening in [O II] λ3728 with a FWHM about 1700 km s-1 and possible line shifts of up to 500-600 km s-1. We postulate that the host galaxy of 3C 297 is a fossil group, in which most of the stellar mass has merged into a single object, leaving behind an X-ray halo.Fil: Missaglia, Valentina. Università di Torino; ItaliaFil: Madrid, Juan P.. University Of Texas At Brownsville; Estados UnidosFil: Schirmer, Mischa. University Of Texas At Brownsville; Estados UnidosFil: Massaro, Francesco. Istituto Nazionale di Astrofisica; ItaliaFil: Rodríguez Ardila, Alberto. No especifíca;Fil: Donzelli, Carlos Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; ArgentinaFil: Valencia, Martell. Istituto Nazionale di Astrofisica; ItaliaFil: Paggi, Alessandro. Istituto Nazionale di Astrofisica; ItaliaFil: Kraft, Ralph P.. Istituto Nazionale di Astrofisica; ItaliaFil: Stuardi, Chiara. Istituto Nazionale di Astrofisica; ItaliaFil: Wilkes, Belinda J.. Istituto Nazionale di Astrofisica; ItaliaIOP Publishing2022-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/267842Missaglia, Valentina; Madrid, Juan P.; Schirmer, Mischa; Massaro, Francesco; Rodríguez Ardila, Alberto; et al.; Powerful Yet Lonely: Is 3C 297 a High-redshift Fossil Group?; IOP Publishing; Astrophysical Journal Supplement Series; 264; 1; 12-2022; 6-190067-0049CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4365/ac9f3einfo:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4365/ac9f3einfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:42:22Zoai:ri.conicet.gov.ar:11336/267842instacron: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 14:42:22.903CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Powerful Yet Lonely: Is 3C 297 a High-redshift Fossil Group?
title Powerful Yet Lonely: Is 3C 297 a High-redshift Fossil Group?
spellingShingle Powerful Yet Lonely: Is 3C 297 a High-redshift Fossil Group?
Missaglia, Valentina
Núcleos activos
Cúmulos de galaxias
Medio interestelar
title_short Powerful Yet Lonely: Is 3C 297 a High-redshift Fossil Group?
title_full Powerful Yet Lonely: Is 3C 297 a High-redshift Fossil Group?
title_fullStr Powerful Yet Lonely: Is 3C 297 a High-redshift Fossil Group?
title_full_unstemmed Powerful Yet Lonely: Is 3C 297 a High-redshift Fossil Group?
title_sort Powerful Yet Lonely: Is 3C 297 a High-redshift Fossil Group?
dc.creator.none.fl_str_mv Missaglia, Valentina
Madrid, Juan P.
Schirmer, Mischa
Massaro, Francesco
Rodríguez Ardila, Alberto
Donzelli, Carlos Jose
Valencia, Martell
Paggi, Alessandro
Kraft, Ralph P.
Stuardi, Chiara
Wilkes, Belinda J.
author Missaglia, Valentina
author_facet Missaglia, Valentina
Madrid, Juan P.
Schirmer, Mischa
Massaro, Francesco
Rodríguez Ardila, Alberto
Donzelli, Carlos Jose
Valencia, Martell
Paggi, Alessandro
Kraft, Ralph P.
Stuardi, Chiara
Wilkes, Belinda J.
author_role author
author2 Madrid, Juan P.
Schirmer, Mischa
Massaro, Francesco
Rodríguez Ardila, Alberto
Donzelli, Carlos Jose
Valencia, Martell
Paggi, Alessandro
Kraft, Ralph P.
Stuardi, Chiara
Wilkes, Belinda J.
author2_role author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Núcleos activos
Cúmulos de galaxias
Medio interestelar
topic Núcleos activos
Cúmulos de galaxias
Medio interestelar
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 environment of the high-redshift (z = 1.408), powerful radio-loud galaxy 3C 297 has several distinctive features of a galaxy cluster. Among them, a characteristic halo of hot gas revealed by Chandra X-ray observations. In addition, a radio map obtained with the Very Large Array shows a bright hotspot in the northwestern direction, created by the interaction of the active galactic nucleus (AGN) jet arising from 3C 297 with its environment. In the X-ray images, emission cospatial with the northwestern radio lobe is detected, and peaks at the position of the radio hotspot. The extended, complex X-ray emission observed with our new Chandra data is largely unrelated to its radio structure. Despite having attributes of a galaxy cluster, no companion galaxies have been identified from 39 new spectra of neighboring targets of 3C 297 obtained with the Gemini Multi-Object Spectrograph. None of the 19 galaxies for which a redshift was determined lies at the same distance as 3C 297. The optical spectral analysis of the new Gemini spectrum of 3C 297 reveals an isolated Type II radio-loud AGN. We also detected line broadening in [O II] λ3728 with a FWHM about 1700 km s-1 and possible line shifts of up to 500-600 km s-1. We postulate that the host galaxy of 3C 297 is a fossil group, in which most of the stellar mass has merged into a single object, leaving behind an X-ray halo.
Fil: Missaglia, Valentina. Università di Torino; Italia
Fil: Madrid, Juan P.. University Of Texas At Brownsville; Estados Unidos
Fil: Schirmer, Mischa. University Of Texas At Brownsville; Estados Unidos
Fil: Massaro, Francesco. Istituto Nazionale di Astrofisica; Italia
Fil: Rodríguez Ardila, Alberto. No especifíca;
Fil: Donzelli, Carlos Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
Fil: Valencia, Martell. Istituto Nazionale di Astrofisica; Italia
Fil: Paggi, Alessandro. Istituto Nazionale di Astrofisica; Italia
Fil: Kraft, Ralph P.. Istituto Nazionale di Astrofisica; Italia
Fil: Stuardi, Chiara. Istituto Nazionale di Astrofisica; Italia
Fil: Wilkes, Belinda J.. Istituto Nazionale di Astrofisica; Italia
description The environment of the high-redshift (z = 1.408), powerful radio-loud galaxy 3C 297 has several distinctive features of a galaxy cluster. Among them, a characteristic halo of hot gas revealed by Chandra X-ray observations. In addition, a radio map obtained with the Very Large Array shows a bright hotspot in the northwestern direction, created by the interaction of the active galactic nucleus (AGN) jet arising from 3C 297 with its environment. In the X-ray images, emission cospatial with the northwestern radio lobe is detected, and peaks at the position of the radio hotspot. The extended, complex X-ray emission observed with our new Chandra data is largely unrelated to its radio structure. Despite having attributes of a galaxy cluster, no companion galaxies have been identified from 39 new spectra of neighboring targets of 3C 297 obtained with the Gemini Multi-Object Spectrograph. None of the 19 galaxies for which a redshift was determined lies at the same distance as 3C 297. The optical spectral analysis of the new Gemini spectrum of 3C 297 reveals an isolated Type II radio-loud AGN. We also detected line broadening in [O II] λ3728 with a FWHM about 1700 km s-1 and possible line shifts of up to 500-600 km s-1. We postulate that the host galaxy of 3C 297 is a fossil group, in which most of the stellar mass has merged into a single object, leaving behind an X-ray halo.
publishDate 2022
dc.date.none.fl_str_mv 2022-12
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/11336/267842
Missaglia, Valentina; Madrid, Juan P.; Schirmer, Mischa; Massaro, Francesco; Rodríguez Ardila, Alberto; et al.; Powerful Yet Lonely: Is 3C 297 a High-redshift Fossil Group?; IOP Publishing; Astrophysical Journal Supplement Series; 264; 1; 12-2022; 6-19
0067-0049
CONICET Digital
CONICET
url http://hdl.handle.net/11336/267842
identifier_str_mv Missaglia, Valentina; Madrid, Juan P.; Schirmer, Mischa; Massaro, Francesco; Rodríguez Ardila, Alberto; et al.; Powerful Yet Lonely: Is 3C 297 a High-redshift Fossil Group?; IOP Publishing; Astrophysical Journal Supplement Series; 264; 1; 12-2022; 6-19
0067-0049
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4365/ac9f3e
info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4365/ac9f3e
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv 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 13.22299

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