Characterization of the continuum and kinematical properties of nearby NLS1

Autores
Oio, Gabriel Andrés; Vega, Luis Rodolfo; Schmidt, Eduardo Osvaldo; Ferreiro, Diego
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Aims. In order to study the slope and strength of the non-stellar continuum, we analysed a sample from nearby Narrow Line Seyfert1 (NLS1). Also, we re-examined the location of NLS1 galaxies on the MBH - σ relation, using the stellar velocity dispersion and the[OIII]λ5007 emission line as a surrogate of the former.Methods. We studied spectra of a sample of 131 NLS1 galaxies taken from the Sloan Digital Sky Survey (SDSS) DR7. We approacheddetermining the non-stellar continuum by employing the spectral synthesis technique, which uses the code starlight, and by adoptinga power-law base to model the non-stellar continuum. Composite spectra of NLS1 galaxies were also obtained based on the sample.In addition, we obtained the stellar velocity dispersion from the code and by measuring Calcium II Triplet absorption lines and [OIII]emission lines. From Gaussian decomposition of the Hβ profile we calculated the black hole mass.Results. We obtained a median slope of β = −1.6 with a median fraction of contribution of the non-stellar continuum to the totalflux of 0.64. We determined black hole masses in the range of log(MBH/M) = 5.6 − 7.5, which is in agreement with previous works.We found a correlation between the luminosity of the broad component of Hβ and black hole mass with the fraction of a power-lawcomponent. Finally, according to our results, NLS1 galaxies in our sample are located mostly underneath the MBH - σ relation, bothconsidering the stellar velocity dispersion (σ) and the core component of [OIII]λ5007.
Fil: Oio, Gabriel Andrés. 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: Vega, Luis Rodolfo. 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. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Schmidt, Eduardo Osvaldo. 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. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Ferreiro, Diego. 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. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Materia
GALAXIES: ACTIVE
GALAXIES: SEYFERT
GALAXIES: NUCLEI
GALAXIES: KINEMATICS AND DYNAMICS
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:11336/123777
Acceder
id CONICETDig_7cd66e484e6825641c05dd87ea8d4ebd
oai_identifier_str oai:ri.conicet.gov.ar:11336/123777
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Characterization of the continuum and kinematical properties of nearby NLS1Oio, Gabriel AndrésVega, Luis RodolfoSchmidt, Eduardo OsvaldoFerreiro, DiegoGALAXIES: ACTIVEGALAXIES: SEYFERTGALAXIES: NUCLEIGALAXIES: KINEMATICS AND DYNAMICShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Aims. In order to study the slope and strength of the non-stellar continuum, we analysed a sample from nearby Narrow Line Seyfert1 (NLS1). Also, we re-examined the location of NLS1 galaxies on the MBH - σ relation, using the stellar velocity dispersion and the[OIII]λ5007 emission line as a surrogate of the former.Methods. We studied spectra of a sample of 131 NLS1 galaxies taken from the Sloan Digital Sky Survey (SDSS) DR7. We approacheddetermining the non-stellar continuum by employing the spectral synthesis technique, which uses the code starlight, and by adoptinga power-law base to model the non-stellar continuum. Composite spectra of NLS1 galaxies were also obtained based on the sample.In addition, we obtained the stellar velocity dispersion from the code and by measuring Calcium II Triplet absorption lines and [OIII]emission lines. From Gaussian decomposition of the Hβ profile we calculated the black hole mass.Results. We obtained a median slope of β = −1.6 with a median fraction of contribution of the non-stellar continuum to the totalflux of 0.64. We determined black hole masses in the range of log(MBH/M) = 5.6 − 7.5, which is in agreement with previous works.We found a correlation between the luminosity of the broad component of Hβ and black hole mass with the fraction of a power-lawcomponent. Finally, according to our results, NLS1 galaxies in our sample are located mostly underneath the MBH - σ relation, bothconsidering the stellar velocity dispersion (σ) and the core component of [OIII]λ5007.Fil: Oio, Gabriel Andrés. 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: Vega, Luis Rodolfo. 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. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; ArgentinaFil: Schmidt, Eduardo Osvaldo. 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. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; ArgentinaFil: Ferreiro, Diego. 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. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; ArgentinaEDP Sciences2019-09info: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/11336/123777Oio, Gabriel Andrés; Vega, Luis Rodolfo; Schmidt, Eduardo Osvaldo; Ferreiro, Diego; Characterization of the continuum and kinematical properties of nearby NLS1; EDP Sciences; Astronomy and Astrophysics; 629; 9-2019; 1-120004-63611432-0746CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/201935934info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201935934info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1906.07909info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:56:50Zoai:ri.conicet.gov.ar:11336/123777instacron: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:34982025-09-03 09:56:50.614CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Characterization of the continuum and kinematical properties of nearby NLS1
title Characterization of the continuum and kinematical properties of nearby NLS1
spellingShingle Characterization of the continuum and kinematical properties of nearby NLS1
Oio, Gabriel Andrés
GALAXIES: ACTIVE
GALAXIES: SEYFERT
GALAXIES: NUCLEI
GALAXIES: KINEMATICS AND DYNAMICS
title_short Characterization of the continuum and kinematical properties of nearby NLS1
title_full Characterization of the continuum and kinematical properties of nearby NLS1
title_fullStr Characterization of the continuum and kinematical properties of nearby NLS1
title_full_unstemmed Characterization of the continuum and kinematical properties of nearby NLS1
title_sort Characterization of the continuum and kinematical properties of nearby NLS1
dc.creator.none.fl_str_mv Oio, Gabriel Andrés
Vega, Luis Rodolfo
Schmidt, Eduardo Osvaldo
Ferreiro, Diego
author Oio, Gabriel Andrés
author_facet Oio, Gabriel Andrés
Vega, Luis Rodolfo
Schmidt, Eduardo Osvaldo
Ferreiro, Diego
author_role author
author2 Vega, Luis Rodolfo
Schmidt, Eduardo Osvaldo
Ferreiro, Diego
author2_role author
author
author
dc.subject.none.fl_str_mv GALAXIES: ACTIVE
GALAXIES: SEYFERT
GALAXIES: NUCLEI
GALAXIES: KINEMATICS AND DYNAMICS
topic GALAXIES: ACTIVE
GALAXIES: SEYFERT
GALAXIES: NUCLEI
GALAXIES: KINEMATICS AND DYNAMICS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Aims. In order to study the slope and strength of the non-stellar continuum, we analysed a sample from nearby Narrow Line Seyfert1 (NLS1). Also, we re-examined the location of NLS1 galaxies on the MBH - σ relation, using the stellar velocity dispersion and the[OIII]λ5007 emission line as a surrogate of the former.Methods. We studied spectra of a sample of 131 NLS1 galaxies taken from the Sloan Digital Sky Survey (SDSS) DR7. We approacheddetermining the non-stellar continuum by employing the spectral synthesis technique, which uses the code starlight, and by adoptinga power-law base to model the non-stellar continuum. Composite spectra of NLS1 galaxies were also obtained based on the sample.In addition, we obtained the stellar velocity dispersion from the code and by measuring Calcium II Triplet absorption lines and [OIII]emission lines. From Gaussian decomposition of the Hβ profile we calculated the black hole mass.Results. We obtained a median slope of β = −1.6 with a median fraction of contribution of the non-stellar continuum to the totalflux of 0.64. We determined black hole masses in the range of log(MBH/M) = 5.6 − 7.5, which is in agreement with previous works.We found a correlation between the luminosity of the broad component of Hβ and black hole mass with the fraction of a power-lawcomponent. Finally, according to our results, NLS1 galaxies in our sample are located mostly underneath the MBH - σ relation, bothconsidering the stellar velocity dispersion (σ) and the core component of [OIII]λ5007.
Fil: Oio, Gabriel Andrés. 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: Vega, Luis Rodolfo. 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. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Schmidt, Eduardo Osvaldo. 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. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Ferreiro, Diego. 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. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
description Aims. In order to study the slope and strength of the non-stellar continuum, we analysed a sample from nearby Narrow Line Seyfert1 (NLS1). Also, we re-examined the location of NLS1 galaxies on the MBH - σ relation, using the stellar velocity dispersion and the[OIII]λ5007 emission line as a surrogate of the former.Methods. We studied spectra of a sample of 131 NLS1 galaxies taken from the Sloan Digital Sky Survey (SDSS) DR7. We approacheddetermining the non-stellar continuum by employing the spectral synthesis technique, which uses the code starlight, and by adoptinga power-law base to model the non-stellar continuum. Composite spectra of NLS1 galaxies were also obtained based on the sample.In addition, we obtained the stellar velocity dispersion from the code and by measuring Calcium II Triplet absorption lines and [OIII]emission lines. From Gaussian decomposition of the Hβ profile we calculated the black hole mass.Results. We obtained a median slope of β = −1.6 with a median fraction of contribution of the non-stellar continuum to the totalflux of 0.64. We determined black hole masses in the range of log(MBH/M) = 5.6 − 7.5, which is in agreement with previous works.We found a correlation between the luminosity of the broad component of Hβ and black hole mass with the fraction of a power-lawcomponent. Finally, according to our results, NLS1 galaxies in our sample are located mostly underneath the MBH - σ relation, bothconsidering the stellar velocity dispersion (σ) and the core component of [OIII]λ5007.
publishDate 2019
dc.date.none.fl_str_mv 2019-09
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/11336/123777
Oio, Gabriel Andrés; Vega, Luis Rodolfo; Schmidt, Eduardo Osvaldo; Ferreiro, Diego; Characterization of the continuum and kinematical properties of nearby NLS1; EDP Sciences; Astronomy and Astrophysics; 629; 9-2019; 1-12
0004-6361
1432-0746
CONICET Digital
CONICET
url http://hdl.handle.net/11336/123777
identifier_str_mv Oio, Gabriel Andrés; Vega, Luis Rodolfo; Schmidt, Eduardo Osvaldo; Ferreiro, Diego; Characterization of the continuum and kinematical properties of nearby NLS1; EDP Sciences; Astronomy and Astrophysics; 629; 9-2019; 1-12
0004-6361
1432-0746
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://www.aanda.org/10.1051/0004-6361/201935934
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201935934
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1906.07909
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 EDP Sciences
publisher.none.fl_str_mv EDP Sciences
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 13.13397

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