CHANG-ES. XX. High-resolution Radio Continuum Images of Edge-on Galaxies and Their AGNs: Data Release 3

The CHANG-ES galaxy sample consists of 35 nearby edge-on galaxies that have been observed using the VLA at 1.6 and 6.0 GHz. Here we present the third data release of our sample, namely, the B configuration 1.6 GHz sample. In addition, we make available the band-to-band spectral index maps between 1....

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Detalles Bibliográficos
Autores: Irwin, J., Wiegert, Theresa, Merritt, A., Wezgowiec, M., Hunt, L., Woodfinden, A., Stein, Y., Damas-Segovia, Ancor, Li, J., Wang, Q. Daniel, Johnson, M., Krause, M., Dettmar, R.J., Im, J., Schmidt, P., Miskolczi, Arpad, Braun, T.T., Saikia, D.J., English, J., Richardson, M.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/193773
Acceso en línea:http://hdl.handle.net/10261/193773
Access Level:acceso abierto
Palabra clave:Surveys
Radio continuum: galaxies
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repository_id_str
spelling CHANG-ES. XX. High-resolution Radio Continuum Images of Edge-on Galaxies and Their AGNs: Data Release 3Irwin, J.Wiegert, TheresaMerritt, A.Wezgowiec, M.Hunt, L.Woodfinden, A.Stein, Y.Damas-Segovia, AncorLi, J.Wang, Q. DanielJohnson, M.Krause, M.Dettmar, R.J.Im, J.Schmidt, P.Miskolczi, ArpadBraun, T.T.Saikia, D.J.English, J.Richardson, M.SurveysRadio continuum: galaxiesThe CHANG-ES galaxy sample consists of 35 nearby edge-on galaxies that have been observed using the VLA at 1.6 and 6.0 GHz. Here we present the third data release of our sample, namely, the B configuration 1.6 GHz sample. In addition, we make available the band-to-band spectral index maps between 1.6 and 6.0 GHz, the latter taken in the matching resolution C configuration. The images can be downloaded from https://www.queensu.ca/changes. These are our highest-resolution images (≈3″), and we examine the possible presence of low-luminosity active galactic nuclei (AGNs) in the sample, as well as some in-disk structure. New features can be seen in the spectral index maps that are masked in the total intensity emission, including hidden spiral arms in NGC 3448 and two previously unknown radio lobes on either side of the nucleus of NGC 3628. Our AGN detection rate, using only radio criteria, is 55%, which we take as a lower limit because some weaker embedded AGNs are likely present that could be revealed at higher resolution. Archival XMM-Newton data were used to search for further fingerprints of the AGNs in the studied sample. In galaxy disks, discrete regions of flat spectral index are seen, likely due to a thermal emission fraction that is higher than the global average.© 2019. The American Astronomical Society. All rights reserved.The first author would like to thank the Natural Sciences and Engineering Research Council of Canada for a Discovery Grant.Peer ReviewedIOP PublishingNatural Sciences and Engineering Research Council of CanadaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2019201920192019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/193773reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1937732026-05-22T06:33:51Z
dc.title.none.fl_str_mv CHANG-ES. XX. High-resolution Radio Continuum Images of Edge-on Galaxies and Their AGNs: Data Release 3
title CHANG-ES. XX. High-resolution Radio Continuum Images of Edge-on Galaxies and Their AGNs: Data Release 3
spellingShingle CHANG-ES. XX. High-resolution Radio Continuum Images of Edge-on Galaxies and Their AGNs: Data Release 3
Irwin, J.
Surveys
Radio continuum: galaxies
title_short CHANG-ES. XX. High-resolution Radio Continuum Images of Edge-on Galaxies and Their AGNs: Data Release 3
title_full CHANG-ES. XX. High-resolution Radio Continuum Images of Edge-on Galaxies and Their AGNs: Data Release 3
title_fullStr CHANG-ES. XX. High-resolution Radio Continuum Images of Edge-on Galaxies and Their AGNs: Data Release 3
title_full_unstemmed CHANG-ES. XX. High-resolution Radio Continuum Images of Edge-on Galaxies and Their AGNs: Data Release 3
title_sort CHANG-ES. XX. High-resolution Radio Continuum Images of Edge-on Galaxies and Their AGNs: Data Release 3
dc.creator.none.fl_str_mv Irwin, J.
Wiegert, Theresa
Merritt, A.
Wezgowiec, M.
Hunt, L.
Woodfinden, A.
Stein, Y.
Damas-Segovia, Ancor
Li, J.
Wang, Q. Daniel
Johnson, M.
Krause, M.
Dettmar, R.J.
Im, J.
Schmidt, P.
Miskolczi, Arpad
Braun, T.T.
Saikia, D.J.
English, J.
Richardson, M.
author Irwin, J.
author_facet Irwin, J.
Wiegert, Theresa
Merritt, A.
Wezgowiec, M.
Hunt, L.
Woodfinden, A.
Stein, Y.
Damas-Segovia, Ancor
Li, J.
Wang, Q. Daniel
Johnson, M.
Krause, M.
Dettmar, R.J.
Im, J.
Schmidt, P.
Miskolczi, Arpad
Braun, T.T.
Saikia, D.J.
English, J.
Richardson, M.
author_role author
author2 Wiegert, Theresa
Merritt, A.
Wezgowiec, M.
Hunt, L.
Woodfinden, A.
Stein, Y.
Damas-Segovia, Ancor
Li, J.
Wang, Q. Daniel
Johnson, M.
Krause, M.
Dettmar, R.J.
Im, J.
Schmidt, P.
Miskolczi, Arpad
Braun, T.T.
Saikia, D.J.
English, J.
Richardson, M.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Natural Sciences and Engineering Research Council of Canada
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Surveys
Radio continuum: galaxies
topic Surveys
Radio continuum: galaxies
description The CHANG-ES galaxy sample consists of 35 nearby edge-on galaxies that have been observed using the VLA at 1.6 and 6.0 GHz. Here we present the third data release of our sample, namely, the B configuration 1.6 GHz sample. In addition, we make available the band-to-band spectral index maps between 1.6 and 6.0 GHz, the latter taken in the matching resolution C configuration. The images can be downloaded from https://www.queensu.ca/changes. These are our highest-resolution images (≈3″), and we examine the possible presence of low-luminosity active galactic nuclei (AGNs) in the sample, as well as some in-disk structure. New features can be seen in the spectral index maps that are masked in the total intensity emission, including hidden spiral arms in NGC 3448 and two previously unknown radio lobes on either side of the nucleus of NGC 3628. Our AGN detection rate, using only radio criteria, is 55%, which we take as a lower limit because some weaker embedded AGNs are likely present that could be revealed at higher resolution. Archival XMM-Newton data were used to search for further fingerprints of the AGNs in the studied sample. In galaxy disks, discrete regions of flat spectral index are seen, likely due to a thermal emission fraction that is higher than the global average.© 2019. The American Astronomical Society. All rights reserved.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/193773
url http://hdl.handle.net/10261/193773
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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