Feeding versus feedback in AGN from near-infrared IFU observations : the case of Mrk 766
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Publication Date: | 2014 |
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Format: | Article |
Language: | eng |
Source: | Repositório Institucional da UFRGS |
Download full: | http://hdl.handle.net/10183/110242 |
Summary: | We have mapped the emission-line flux distributions and ratios as well as the gaseous kinematics of the inner 450 pc radius of the type 1 Seyfert galaxy Mrk 766 using integral field near-infrared J- and Kl-band spectra obtained with the Gemini Near Infrared Integral Field Spectrograph at a spatial resolution of 60 pc and velocity resolution of 40 kms-ˡ. Emission-line flux distributions in ionized and molecular gas extend up to≈300 pc from the nucleus. Coronal [S IX] λ1.2523 μm line emission is resolved, being extended up to 150 pc from the nucleus. At the highest flux levels, the [Fe II] λ1.257 μm line emission is most extended to the south-east, where a radio jet has been observed. The emission-line ratios [Fe II] λ1.2570 μm/Paβ and H2λ2.1218 μm/Brγ show a mixture of Starburst and Seyfert excitation; the Seyfert excitation dominates at the nucleus, to the north-west and in an arc-shaped region between 0.2 and 0.6 arcsec to the south-east at the location of the radio jet. A contribution from shocks at this location is supported by enhanced [Fe II]/[P II] line ratios and increased [Fe II] velocity dispersion. The gas velocity field is dominated by rotation that is more compact for H2 than for Paβ, indicating that the molecular gas has a colder kinematics and is located in the galaxy plane. There is about 103 Mʘ of hot H2, implying ≈109 Mʘ of cold molecular gas. At the location of the radio jet, we observe an increase in the [Fe II] velocity dispersion (150 km s-ˡ), as well as both blueshift and redshifts in the channel maps, supporting the presence of an outflow there. The ionized gas mass outflow rate is estimated to be ≈10 Mʘ yr-ˡ, and the power of the outflow ≈0.08 Lbol. |
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Schönell Júnior, Astor JoãoRiffel, Rogemar AndréStorchi-Bergmann, ThaisaWinge, Claudia2015-02-20T02:20:17Z20140035-8711http://hdl.handle.net/10183/110242000949417We have mapped the emission-line flux distributions and ratios as well as the gaseous kinematics of the inner 450 pc radius of the type 1 Seyfert galaxy Mrk 766 using integral field near-infrared J- and Kl-band spectra obtained with the Gemini Near Infrared Integral Field Spectrograph at a spatial resolution of 60 pc and velocity resolution of 40 kms-ˡ. Emission-line flux distributions in ionized and molecular gas extend up to≈300 pc from the nucleus. Coronal [S IX] λ1.2523 μm line emission is resolved, being extended up to 150 pc from the nucleus. At the highest flux levels, the [Fe II] λ1.257 μm line emission is most extended to the south-east, where a radio jet has been observed. The emission-line ratios [Fe II] λ1.2570 μm/Paβ and H2λ2.1218 μm/Brγ show a mixture of Starburst and Seyfert excitation; the Seyfert excitation dominates at the nucleus, to the north-west and in an arc-shaped region between 0.2 and 0.6 arcsec to the south-east at the location of the radio jet. A contribution from shocks at this location is supported by enhanced [Fe II]/[P II] line ratios and increased [Fe II] velocity dispersion. The gas velocity field is dominated by rotation that is more compact for H2 than for Paβ, indicating that the molecular gas has a colder kinematics and is located in the galaxy plane. There is about 103 Mʘ of hot H2, implying ≈109 Mʘ of cold molecular gas. At the location of the radio jet, we observe an increase in the [Fe II] velocity dispersion (150 km s-ˡ), as well as both blueshift and redshifts in the channel maps, supporting the presence of an outflow there. The ionized gas mass outflow rate is estimated to be ≈10 Mʘ yr-ˡ, and the power of the outflow ≈0.08 Lbol.application/pdfengMonthly notices of the Royal Astronomical Society. Oxford. Vol. 445, no. 1 (Nov. 2014), p. 414-427Galaxias seyfertGaláxias ativasNucleo galaticoGalaxies: activeGalaxies: individual: mrk 766Galaxies: kinematics and dynamicsGalaxies: nucleiGalaxies: seyfertFeeding versus feedback in AGN from near-infrared IFU observations : the case of Mrk 766Estrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000949417.pdf000949417.pdfTexto completo (inglês)application/pdf2492276http://www.lume.ufrgs.br/bitstream/10183/110242/1/000949417.pdfae430ed9fd07ab07918b39344ccf4064MD51TEXT000949417.pdf.txt000949417.pdf.txtExtracted Texttext/plain59146http://www.lume.ufrgs.br/bitstream/10183/110242/2/000949417.pdf.txt85394f6bd4aaca45022f70f6ea5f9f64MD52THUMBNAIL000949417.pdf.jpg000949417.pdf.jpgGenerated Thumbnailimage/jpeg2114http://www.lume.ufrgs.br/bitstream/10183/110242/3/000949417.pdf.jpgec9f657774e03217c7dc062f5d2c46baMD5310183/1102422018-10-23 09:22:17.69oai:www.lume.ufrgs.br:10183/110242Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-23T12:22:17Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Feeding versus feedback in AGN from near-infrared IFU observations : the case of Mrk 766 |
title |
Feeding versus feedback in AGN from near-infrared IFU observations : the case of Mrk 766 |
spellingShingle |
Feeding versus feedback in AGN from near-infrared IFU observations : the case of Mrk 766 Schönell Júnior, Astor João Galaxias seyfert Galáxias ativas Nucleo galatico Galaxies: active Galaxies: individual: mrk 766 Galaxies: kinematics and dynamics Galaxies: nuclei Galaxies: seyfert |
title_short |
Feeding versus feedback in AGN from near-infrared IFU observations : the case of Mrk 766 |
title_full |
Feeding versus feedback in AGN from near-infrared IFU observations : the case of Mrk 766 |
title_fullStr |
Feeding versus feedback in AGN from near-infrared IFU observations : the case of Mrk 766 |
title_full_unstemmed |
Feeding versus feedback in AGN from near-infrared IFU observations : the case of Mrk 766 |
title_sort |
Feeding versus feedback in AGN from near-infrared IFU observations : the case of Mrk 766 |
author |
Schönell Júnior, Astor João |
author_facet |
Schönell Júnior, Astor João Riffel, Rogemar André Storchi-Bergmann, Thaisa Winge, Claudia |
author_role |
author |
author2 |
Riffel, Rogemar André Storchi-Bergmann, Thaisa Winge, Claudia |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Schönell Júnior, Astor João Riffel, Rogemar André Storchi-Bergmann, Thaisa Winge, Claudia |
dc.subject.por.fl_str_mv |
Galaxias seyfert Galáxias ativas Nucleo galatico |
topic |
Galaxias seyfert Galáxias ativas Nucleo galatico Galaxies: active Galaxies: individual: mrk 766 Galaxies: kinematics and dynamics Galaxies: nuclei Galaxies: seyfert |
dc.subject.eng.fl_str_mv |
Galaxies: active Galaxies: individual: mrk 766 Galaxies: kinematics and dynamics Galaxies: nuclei Galaxies: seyfert |
description |
We have mapped the emission-line flux distributions and ratios as well as the gaseous kinematics of the inner 450 pc radius of the type 1 Seyfert galaxy Mrk 766 using integral field near-infrared J- and Kl-band spectra obtained with the Gemini Near Infrared Integral Field Spectrograph at a spatial resolution of 60 pc and velocity resolution of 40 kms-ˡ. Emission-line flux distributions in ionized and molecular gas extend up to≈300 pc from the nucleus. Coronal [S IX] λ1.2523 μm line emission is resolved, being extended up to 150 pc from the nucleus. At the highest flux levels, the [Fe II] λ1.257 μm line emission is most extended to the south-east, where a radio jet has been observed. The emission-line ratios [Fe II] λ1.2570 μm/Paβ and H2λ2.1218 μm/Brγ show a mixture of Starburst and Seyfert excitation; the Seyfert excitation dominates at the nucleus, to the north-west and in an arc-shaped region between 0.2 and 0.6 arcsec to the south-east at the location of the radio jet. A contribution from shocks at this location is supported by enhanced [Fe II]/[P II] line ratios and increased [Fe II] velocity dispersion. The gas velocity field is dominated by rotation that is more compact for H2 than for Paβ, indicating that the molecular gas has a colder kinematics and is located in the galaxy plane. There is about 103 Mʘ of hot H2, implying ≈109 Mʘ of cold molecular gas. At the location of the radio jet, we observe an increase in the [Fe II] velocity dispersion (150 km s-ˡ), as well as both blueshift and redshifts in the channel maps, supporting the presence of an outflow there. The ionized gas mass outflow rate is estimated to be ≈10 Mʘ yr-ˡ, and the power of the outflow ≈0.08 Lbol. |
publishDate |
2014 |
dc.date.issued.fl_str_mv |
2014 |
dc.date.accessioned.fl_str_mv |
2015-02-20T02:20:17Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
format |
article |
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publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/110242 |
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0035-8711 |
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000949417 |
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http://hdl.handle.net/10183/110242 |
dc.language.iso.fl_str_mv |
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language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Monthly notices of the Royal Astronomical Society. Oxford. Vol. 445, no. 1 (Nov. 2014), p. 414-427 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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