A near-infrared view of Nearby Galaxies: The Case of NGC 6300

Autores
Gaspar, Gaia; Diaz, Ruben Joaquin; Mast, Damian; D'Ambra, A.; Agüero, Maria Paz; Gunthardt, Guillermo Ivan
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present a near-infrared study of the Seyfert 2 galaxy NGC 6300, based on subarcsecond images and long slit spectroscopy obtained with Flamingos-2 at Gemini South. We have found that the peak of the nuclear continuum emission in the K s band and the surrounding nuclear disk are 25 pc off-center with respect to the center of symmetry of the larger scale circumnuclear disk, suggesting that this black hole is still not fixed in the galaxy potential well. The molecular gas radial velocity curve yields a central black hole upper mass estimation of . The Paβ emission line has a strongly asymmetric profile with a blueshifted broad component that we associate with a nuclear ionized gas outflow. We have found in the K s -band spectra that the slope of the continuum becomes steeper with increasing radii, which can be explained as the presence of large amounts of hot dust not only in the nucleus but also in the circumnuclear region up to r = 27 pc. In fact, the nuclear red excess obtained after subtracting the stellar contribution resembles to that of a blackbody with temperatures around 1200 K. This evidence supports the idea that absorbing material located around the nucleus, but not close enough to be the torus of the unified model, could be responsible for at least part of the nuclear obscuration in this Seyfert 2 nucleus.
Fil: Gaspar, Gaia. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Diaz, Ruben Joaquin. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina. Gemini Observatory; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; Argentina
Fil: Mast, Damian. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina
Fil: D'Ambra, A.. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina
Fil: Agüero, Maria Paz. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gunthardt, Guillermo Ivan. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina
Materia
GALAXIES: ACTIVE
GALAXIES: ISM
GALAXIES: NUCLEI
GALAXIES: SEYFERT
INFRARED: GALAXIES
TECHNIQUES: SPECTROSCOPIC
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:11336/112716
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/112716
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A near-infrared view of Nearby Galaxies: The Case of NGC 6300Gaspar, GaiaDiaz, Ruben JoaquinMast, DamianD'Ambra, A.Agüero, Maria PazGunthardt, Guillermo IvanGALAXIES: ACTIVEGALAXIES: ISMGALAXIES: NUCLEIGALAXIES: SEYFERTINFRARED: GALAXIESTECHNIQUES: SPECTROSCOPIChttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present a near-infrared study of the Seyfert 2 galaxy NGC 6300, based on subarcsecond images and long slit spectroscopy obtained with Flamingos-2 at Gemini South. We have found that the peak of the nuclear continuum emission in the K s band and the surrounding nuclear disk are 25 pc off-center with respect to the center of symmetry of the larger scale circumnuclear disk, suggesting that this black hole is still not fixed in the galaxy potential well. The molecular gas radial velocity curve yields a central black hole upper mass estimation of . The Paβ emission line has a strongly asymmetric profile with a blueshifted broad component that we associate with a nuclear ionized gas outflow. We have found in the K s -band spectra that the slope of the continuum becomes steeper with increasing radii, which can be explained as the presence of large amounts of hot dust not only in the nucleus but also in the circumnuclear region up to r = 27 pc. In fact, the nuclear red excess obtained after subtracting the stellar contribution resembles to that of a blackbody with temperatures around 1200 K. This evidence supports the idea that absorbing material located around the nucleus, but not close enough to be the torus of the unified model, could be responsible for at least part of the nuclear obscuration in this Seyfert 2 nucleus.Fil: Gaspar, Gaia. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Diaz, Ruben Joaquin. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina. Gemini Observatory; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; ArgentinaFil: Mast, Damian. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Observatorio Astronomico de la Universidad Nacional de Cordoba; ArgentinaFil: D'Ambra, A.. Observatorio Astronomico de la Universidad Nacional de Cordoba; ArgentinaFil: Agüero, Maria Paz. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Gunthardt, Guillermo Ivan. Observatorio Astronomico de la Universidad Nacional de Cordoba; ArgentinaIOP Publishing2019-02info: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/11336/112716Gaspar, Gaia; Diaz, Ruben Joaquin; Mast, Damian; D'Ambra, A.; Agüero, Maria Paz; et al.; A near-infrared view of Nearby Galaxies: The Case of NGC 6300; IOP Publishing; Astronomical Journal; 157; 2; 2-20190004-62561538-3881CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-3881/aaf4b9/pdfinfo:eu-repo/semantics/altIdentifier/doi/10.3847/1538-3881/aaf4b9info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:25:07Zoai:ri.conicet.gov.ar:11336/112716instacron: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 10:25:07.784CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A near-infrared view of Nearby Galaxies: The Case of NGC 6300
title A near-infrared view of Nearby Galaxies: The Case of NGC 6300
spellingShingle A near-infrared view of Nearby Galaxies: The Case of NGC 6300
Gaspar, Gaia
GALAXIES: ACTIVE
GALAXIES: ISM
GALAXIES: NUCLEI
GALAXIES: SEYFERT
INFRARED: GALAXIES
TECHNIQUES: SPECTROSCOPIC
title_short A near-infrared view of Nearby Galaxies: The Case of NGC 6300
title_full A near-infrared view of Nearby Galaxies: The Case of NGC 6300
title_fullStr A near-infrared view of Nearby Galaxies: The Case of NGC 6300
title_full_unstemmed A near-infrared view of Nearby Galaxies: The Case of NGC 6300
title_sort A near-infrared view of Nearby Galaxies: The Case of NGC 6300
dc.creator.none.fl_str_mv Gaspar, Gaia
Diaz, Ruben Joaquin
Mast, Damian
D'Ambra, A.
Agüero, Maria Paz
Gunthardt, Guillermo Ivan
author Gaspar, Gaia
author_facet Gaspar, Gaia
Diaz, Ruben Joaquin
Mast, Damian
D'Ambra, A.
Agüero, Maria Paz
Gunthardt, Guillermo Ivan
author_role author
author2 Diaz, Ruben Joaquin
Mast, Damian
D'Ambra, A.
Agüero, Maria Paz
Gunthardt, Guillermo Ivan
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv GALAXIES: ACTIVE
GALAXIES: ISM
GALAXIES: NUCLEI
GALAXIES: SEYFERT
INFRARED: GALAXIES
TECHNIQUES: SPECTROSCOPIC
topic GALAXIES: ACTIVE
GALAXIES: ISM
GALAXIES: NUCLEI
GALAXIES: SEYFERT
INFRARED: GALAXIES
TECHNIQUES: SPECTROSCOPIC
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 present a near-infrared study of the Seyfert 2 galaxy NGC 6300, based on subarcsecond images and long slit spectroscopy obtained with Flamingos-2 at Gemini South. We have found that the peak of the nuclear continuum emission in the K s band and the surrounding nuclear disk are 25 pc off-center with respect to the center of symmetry of the larger scale circumnuclear disk, suggesting that this black hole is still not fixed in the galaxy potential well. The molecular gas radial velocity curve yields a central black hole upper mass estimation of . The Paβ emission line has a strongly asymmetric profile with a blueshifted broad component that we associate with a nuclear ionized gas outflow. We have found in the K s -band spectra that the slope of the continuum becomes steeper with increasing radii, which can be explained as the presence of large amounts of hot dust not only in the nucleus but also in the circumnuclear region up to r = 27 pc. In fact, the nuclear red excess obtained after subtracting the stellar contribution resembles to that of a blackbody with temperatures around 1200 K. This evidence supports the idea that absorbing material located around the nucleus, but not close enough to be the torus of the unified model, could be responsible for at least part of the nuclear obscuration in this Seyfert 2 nucleus.
Fil: Gaspar, Gaia. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Diaz, Ruben Joaquin. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina. Gemini Observatory; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; Argentina
Fil: Mast, Damian. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina
Fil: D'Ambra, A.. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina
Fil: Agüero, Maria Paz. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gunthardt, Guillermo Ivan. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina
description We present a near-infrared study of the Seyfert 2 galaxy NGC 6300, based on subarcsecond images and long slit spectroscopy obtained with Flamingos-2 at Gemini South. We have found that the peak of the nuclear continuum emission in the K s band and the surrounding nuclear disk are 25 pc off-center with respect to the center of symmetry of the larger scale circumnuclear disk, suggesting that this black hole is still not fixed in the galaxy potential well. The molecular gas radial velocity curve yields a central black hole upper mass estimation of . The Paβ emission line has a strongly asymmetric profile with a blueshifted broad component that we associate with a nuclear ionized gas outflow. We have found in the K s -band spectra that the slope of the continuum becomes steeper with increasing radii, which can be explained as the presence of large amounts of hot dust not only in the nucleus but also in the circumnuclear region up to r = 27 pc. In fact, the nuclear red excess obtained after subtracting the stellar contribution resembles to that of a blackbody with temperatures around 1200 K. This evidence supports the idea that absorbing material located around the nucleus, but not close enough to be the torus of the unified model, could be responsible for at least part of the nuclear obscuration in this Seyfert 2 nucleus.
publishDate 2019
dc.date.none.fl_str_mv 2019-02
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/11336/112716
Gaspar, Gaia; Diaz, Ruben Joaquin; Mast, Damian; D'Ambra, A.; Agüero, Maria Paz; et al.; A near-infrared view of Nearby Galaxies: The Case of NGC 6300; IOP Publishing; Astronomical Journal; 157; 2; 2-2019
0004-6256
1538-3881
CONICET Digital
CONICET
url http://hdl.handle.net/11336/112716
identifier_str_mv Gaspar, Gaia; Diaz, Ruben Joaquin; Mast, Damian; D'Ambra, A.; Agüero, Maria Paz; et al.; A near-infrared view of Nearby Galaxies: The Case of NGC 6300; IOP Publishing; Astronomical Journal; 157; 2; 2-2019
0004-6256
1538-3881
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/10.3847/1538-3881/aaf4b9/pdf
info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-3881/aaf4b9
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 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 13.070432

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