X-rays as the dominant excitation mechanism of [Fe II] and H2 emission lines in active galaxies
- Autores
- Dors, Oli L.; Riffel, Rogemar A.; Cardaci, Monica Viviana; Hägele, Guillermo Federico; Krabbe, Angela; Pérez Montero, Enrique; Rodrigues, Irapuan
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We investigate the excitation mechanisms of near-infrared [Fe II] and H2 emission lines observed in active galactic nuclei (AGNs). We built a photoionization model grid considering a two-component continuum: one component accounts for the `big bump´ component peaking at 1Ryd and another represents the X-ray source that dominates the continuum emission at high energies. Photoionization models considering as ionizing source a spectral energy distribution obtained from photometric data of Seyfert 2 Mrk 1066 taken from the literature were considered. Results of these models were compared with a large sample of observational long-slit and Integral field Unit (IFU) spectroscopy data of the nuclear region for a sample of active objects. We found that the correlation between the observational [Fe II] lambda 1.2570μm/Pa beta and H2 lambda 2.1218μm/Brγ is well reproduced by our models, as are the relationships that involve the H2 emission-line ratios observed in the spectroscopic data. We conclude that heating by X-rays produced by active nuclei can be considered a common and very important mechanism of excitation of [Fe II] and H2.
Fil: Dors, Oli L.. Universidade Do Vale Do Paraíba; Brasil
Fil: Riffel, Rogemar A.. Universidade Federal de Santa Maria; Brasil
Fil: Cardaci, Monica Viviana. Universidad Autónoma de Madrid. Facultad de Ciencias; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Hägele, Guillermo Federico. Universidad Autónoma de Madrid. Facultad de Ciencias; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Krabbe, Angela. Universidade Do Vale Do Paraíba; Brasil
Fil: Pérez Montero, Enrique. Inst. de Astrofísica de Andalucía; España
Fil: Rodrigues, Irapuan. Universidade Do Vale Do Paraíba; Brasil - Materia
-
Galaxies
Seyfert galaxies
Infrared galaxies
Interstellar medium - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/42650
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oai:ri.conicet.gov.ar:11336/42650 |
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3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
X-rays as the dominant excitation mechanism of [Fe II] and H2 emission lines in active galaxiesDors, Oli L.Riffel, Rogemar A.Cardaci, Monica VivianaHägele, Guillermo FedericoKrabbe, AngelaPérez Montero, EnriqueRodrigues, IrapuanGalaxiesSeyfert galaxiesInfrared galaxiesInterstellar mediumhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We investigate the excitation mechanisms of near-infrared [Fe II] and H2 emission lines observed in active galactic nuclei (AGNs). We built a photoionization model grid considering a two-component continuum: one component accounts for the `big bump´ component peaking at 1Ryd and another represents the X-ray source that dominates the continuum emission at high energies. Photoionization models considering as ionizing source a spectral energy distribution obtained from photometric data of Seyfert 2 Mrk 1066 taken from the literature were considered. Results of these models were compared with a large sample of observational long-slit and Integral field Unit (IFU) spectroscopy data of the nuclear region for a sample of active objects. We found that the correlation between the observational [Fe II] lambda 1.2570μm/Pa beta and H2 lambda 2.1218μm/Brγ is well reproduced by our models, as are the relationships that involve the H2 emission-line ratios observed in the spectroscopic data. We conclude that heating by X-rays produced by active nuclei can be considered a common and very important mechanism of excitation of [Fe II] and H2.Fil: Dors, Oli L.. Universidade Do Vale Do Paraíba; BrasilFil: Riffel, Rogemar A.. Universidade Federal de Santa Maria; BrasilFil: Cardaci, Monica Viviana. Universidad Autónoma de Madrid. Facultad de Ciencias; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Hägele, Guillermo Federico. Universidad Autónoma de Madrid. Facultad de Ciencias; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Krabbe, Angela. Universidade Do Vale Do Paraíba; BrasilFil: Pérez Montero, Enrique. Inst. de Astrofísica de Andalucía; EspañaFil: Rodrigues, Irapuan. Universidade Do Vale Do Paraíba; BrasilWiley Blackwell Publishing, Inc2012-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/42650Dors, Oli L.; Riffel, Rogemar A.; Cardaci, Monica Viviana; Hägele, Guillermo Federico; Krabbe, Angela; et al.; X-rays as the dominant excitation mechanism of [Fe II] and H2 emission lines in active galaxies; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 422; 1; 5-2012; 252-2600035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2012.20600.xinfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/422/1/252/1020740info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:00:31Zoai:ri.conicet.gov.ar:11336/42650instacron: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 15:00:32.24CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
X-rays as the dominant excitation mechanism of [Fe II] and H2 emission lines in active galaxies |
title |
X-rays as the dominant excitation mechanism of [Fe II] and H2 emission lines in active galaxies |
spellingShingle |
X-rays as the dominant excitation mechanism of [Fe II] and H2 emission lines in active galaxies Dors, Oli L. Galaxies Seyfert galaxies Infrared galaxies Interstellar medium |
title_short |
X-rays as the dominant excitation mechanism of [Fe II] and H2 emission lines in active galaxies |
title_full |
X-rays as the dominant excitation mechanism of [Fe II] and H2 emission lines in active galaxies |
title_fullStr |
X-rays as the dominant excitation mechanism of [Fe II] and H2 emission lines in active galaxies |
title_full_unstemmed |
X-rays as the dominant excitation mechanism of [Fe II] and H2 emission lines in active galaxies |
title_sort |
X-rays as the dominant excitation mechanism of [Fe II] and H2 emission lines in active galaxies |
dc.creator.none.fl_str_mv |
Dors, Oli L. Riffel, Rogemar A. Cardaci, Monica Viviana Hägele, Guillermo Federico Krabbe, Angela Pérez Montero, Enrique Rodrigues, Irapuan |
author |
Dors, Oli L. |
author_facet |
Dors, Oli L. Riffel, Rogemar A. Cardaci, Monica Viviana Hägele, Guillermo Federico Krabbe, Angela Pérez Montero, Enrique Rodrigues, Irapuan |
author_role |
author |
author2 |
Riffel, Rogemar A. Cardaci, Monica Viviana Hägele, Guillermo Federico Krabbe, Angela Pérez Montero, Enrique Rodrigues, Irapuan |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
Galaxies Seyfert galaxies Infrared galaxies Interstellar medium |
topic |
Galaxies Seyfert galaxies Infrared galaxies Interstellar medium |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
We investigate the excitation mechanisms of near-infrared [Fe II] and H2 emission lines observed in active galactic nuclei (AGNs). We built a photoionization model grid considering a two-component continuum: one component accounts for the `big bump´ component peaking at 1Ryd and another represents the X-ray source that dominates the continuum emission at high energies. Photoionization models considering as ionizing source a spectral energy distribution obtained from photometric data of Seyfert 2 Mrk 1066 taken from the literature were considered. Results of these models were compared with a large sample of observational long-slit and Integral field Unit (IFU) spectroscopy data of the nuclear region for a sample of active objects. We found that the correlation between the observational [Fe II] lambda 1.2570μm/Pa beta and H2 lambda 2.1218μm/Brγ is well reproduced by our models, as are the relationships that involve the H2 emission-line ratios observed in the spectroscopic data. We conclude that heating by X-rays produced by active nuclei can be considered a common and very important mechanism of excitation of [Fe II] and H2. Fil: Dors, Oli L.. Universidade Do Vale Do Paraíba; Brasil Fil: Riffel, Rogemar A.. Universidade Federal de Santa Maria; Brasil Fil: Cardaci, Monica Viviana. Universidad Autónoma de Madrid. Facultad de Ciencias; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina Fil: Hägele, Guillermo Federico. Universidad Autónoma de Madrid. Facultad de Ciencias; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina Fil: Krabbe, Angela. Universidade Do Vale Do Paraíba; Brasil Fil: Pérez Montero, Enrique. Inst. de Astrofísica de Andalucía; España Fil: Rodrigues, Irapuan. Universidade Do Vale Do Paraíba; Brasil |
description |
We investigate the excitation mechanisms of near-infrared [Fe II] and H2 emission lines observed in active galactic nuclei (AGNs). We built a photoionization model grid considering a two-component continuum: one component accounts for the `big bump´ component peaking at 1Ryd and another represents the X-ray source that dominates the continuum emission at high energies. Photoionization models considering as ionizing source a spectral energy distribution obtained from photometric data of Seyfert 2 Mrk 1066 taken from the literature were considered. Results of these models were compared with a large sample of observational long-slit and Integral field Unit (IFU) spectroscopy data of the nuclear region for a sample of active objects. We found that the correlation between the observational [Fe II] lambda 1.2570μm/Pa beta and H2 lambda 2.1218μm/Brγ is well reproduced by our models, as are the relationships that involve the H2 emission-line ratios observed in the spectroscopic data. We conclude that heating by X-rays produced by active nuclei can be considered a common and very important mechanism of excitation of [Fe II] and H2. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-05 |
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/11336/42650 Dors, Oli L.; Riffel, Rogemar A.; Cardaci, Monica Viviana; Hägele, Guillermo Federico; Krabbe, Angela; et al.; X-rays as the dominant excitation mechanism of [Fe II] and H2 emission lines in active galaxies; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 422; 1; 5-2012; 252-260 0035-8711 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/42650 |
identifier_str_mv |
Dors, Oli L.; Riffel, Rogemar A.; Cardaci, Monica Viviana; Hägele, Guillermo Federico; Krabbe, Angela; et al.; X-rays as the dominant excitation mechanism of [Fe II] and H2 emission lines in active galaxies; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 422; 1; 5-2012; 252-260 0035-8711 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2012.20600.x info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/422/1/252/1020740 |
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 |
dc.publisher.none.fl_str_mv |
Wiley Blackwell Publishing, Inc |
publisher.none.fl_str_mv |
Wiley Blackwell Publishing, Inc |
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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1846083144629878784 |
score |
13.22299 |