Host galaxy properties of changing-look AGNs revealed in the MaNGA survey
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/217815 |
Resumo: | Changing-look active galactic nuclei (CL-AGNs) are a subset of AGNs in which the broad Balmer emission lines appear or disappear within a few years. We use the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey to identify five CL-AGNs. The 2D photometric and kinematic maps reveal common features as well as some unusual properties of CL-AGN hosts as compared to the AGN hosts in general. All MaNGA CL-AGNs reside in the star-forming main sequence, similar to MaNGA non-changing-look AGNs (NCL-AGNs). The 80 ± 16 per cent of our CL-AGNs do possess pseudo-bulge features, and follow the overall NCL-AGN MBH–σ∗ relationship. The kinematic measurements indicate that they have similar distributions in the plane of angular momentum versus galaxy ellipticity. MaNGA CL-AGNs, however, show a higher, but not statistically significant (20 ± 16 per cent) fraction of counter-rotating features compared to that (1.84 ± 0.61 per cent) in general star formation population. In addition, MaNGA CL-AGNs favour more face-on (axial ratio > 0.7) than that of type I NCL-AGNs. These results suggest that host galaxies could play a role in the CL-AGN phenomenon. |
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Yu, XiaolingShi, YongChen, YanmeiChen, JianhangLi, SonglinBing, LongjiGe, JunqiangRiffel, Rogemar AndréRiffel, Rogério2021-02-09T04:07:26Z20200035-8711http://hdl.handle.net/10183/217815001120554Changing-look active galactic nuclei (CL-AGNs) are a subset of AGNs in which the broad Balmer emission lines appear or disappear within a few years. We use the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey to identify five CL-AGNs. The 2D photometric and kinematic maps reveal common features as well as some unusual properties of CL-AGN hosts as compared to the AGN hosts in general. All MaNGA CL-AGNs reside in the star-forming main sequence, similar to MaNGA non-changing-look AGNs (NCL-AGNs). The 80 ± 16 per cent of our CL-AGNs do possess pseudo-bulge features, and follow the overall NCL-AGN MBH–σ∗ relationship. The kinematic measurements indicate that they have similar distributions in the plane of angular momentum versus galaxy ellipticity. MaNGA CL-AGNs, however, show a higher, but not statistically significant (20 ± 16 per cent) fraction of counter-rotating features compared to that (1.84 ± 0.61 per cent) in general star formation population. In addition, MaNGA CL-AGNs favour more face-on (axial ratio > 0.7) than that of type I NCL-AGNs. These results suggest that host galaxies could play a role in the CL-AGN phenomenon.application/pdfengMonthly notices of the royal astronomical society. Oxford. Vol. 498, no. 3 (Nov. 2020), p. 3985–3994Galáxias ativasEvolucao galaticaCinemática estelarNucleo galaticoGalaxias seyfertGalaxies: activeGalaxies: evolutionGalaxies: kinematics and dynamicsGalaxies: nucleiGalaxies: SeyfertHost galaxy properties of changing-look AGNs revealed in the MaNGA surveyEstrangeiroinfo: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:UFRGSTEXT001120554.pdf.txt001120554.pdf.txtExtracted Texttext/plain43146http://www.lume.ufrgs.br/bitstream/10183/217815/2/001120554.pdf.txtb53ec72ae419387caf2cbde336ac20cbMD52ORIGINAL001120554.pdfTexto completo (inglês)application/pdf2988511http://www.lume.ufrgs.br/bitstream/10183/217815/1/001120554.pdf32ec20655429821a5b34051233989457MD5110183/2178152023-09-24 03:37:54.969406oai:www.lume.ufrgs.br:10183/217815Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-09-24T06:37:54Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Host galaxy properties of changing-look AGNs revealed in the MaNGA survey |
title |
Host galaxy properties of changing-look AGNs revealed in the MaNGA survey |
spellingShingle |
Host galaxy properties of changing-look AGNs revealed in the MaNGA survey Yu, Xiaoling Galáxias ativas Evolucao galatica Cinemática estelar Nucleo galatico Galaxias seyfert Galaxies: active Galaxies: evolution Galaxies: kinematics and dynamics Galaxies: nuclei Galaxies: Seyfert |
title_short |
Host galaxy properties of changing-look AGNs revealed in the MaNGA survey |
title_full |
Host galaxy properties of changing-look AGNs revealed in the MaNGA survey |
title_fullStr |
Host galaxy properties of changing-look AGNs revealed in the MaNGA survey |
title_full_unstemmed |
Host galaxy properties of changing-look AGNs revealed in the MaNGA survey |
title_sort |
Host galaxy properties of changing-look AGNs revealed in the MaNGA survey |
author |
Yu, Xiaoling |
author_facet |
Yu, Xiaoling Shi, Yong Chen, Yanmei Chen, Jianhang Li, Songlin Bing, Longji Ge, Junqiang Riffel, Rogemar André Riffel, Rogério |
author_role |
author |
author2 |
Shi, Yong Chen, Yanmei Chen, Jianhang Li, Songlin Bing, Longji Ge, Junqiang Riffel, Rogemar André Riffel, Rogério |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Yu, Xiaoling Shi, Yong Chen, Yanmei Chen, Jianhang Li, Songlin Bing, Longji Ge, Junqiang Riffel, Rogemar André Riffel, Rogério |
dc.subject.por.fl_str_mv |
Galáxias ativas Evolucao galatica Cinemática estelar Nucleo galatico Galaxias seyfert |
topic |
Galáxias ativas Evolucao galatica Cinemática estelar Nucleo galatico Galaxias seyfert Galaxies: active Galaxies: evolution Galaxies: kinematics and dynamics Galaxies: nuclei Galaxies: Seyfert |
dc.subject.eng.fl_str_mv |
Galaxies: active Galaxies: evolution Galaxies: kinematics and dynamics Galaxies: nuclei Galaxies: Seyfert |
description |
Changing-look active galactic nuclei (CL-AGNs) are a subset of AGNs in which the broad Balmer emission lines appear or disappear within a few years. We use the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey to identify five CL-AGNs. The 2D photometric and kinematic maps reveal common features as well as some unusual properties of CL-AGN hosts as compared to the AGN hosts in general. All MaNGA CL-AGNs reside in the star-forming main sequence, similar to MaNGA non-changing-look AGNs (NCL-AGNs). The 80 ± 16 per cent of our CL-AGNs do possess pseudo-bulge features, and follow the overall NCL-AGN MBH–σ∗ relationship. The kinematic measurements indicate that they have similar distributions in the plane of angular momentum versus galaxy ellipticity. MaNGA CL-AGNs, however, show a higher, but not statistically significant (20 ± 16 per cent) fraction of counter-rotating features compared to that (1.84 ± 0.61 per cent) in general star formation population. In addition, MaNGA CL-AGNs favour more face-on (axial ratio > 0.7) than that of type I NCL-AGNs. These results suggest that host galaxies could play a role in the CL-AGN phenomenon. |
publishDate |
2020 |
dc.date.issued.fl_str_mv |
2020 |
dc.date.accessioned.fl_str_mv |
2021-02-09T04:07:26Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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article |
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001120554 |
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http://hdl.handle.net/10183/217815 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Monthly notices of the royal astronomical society. Oxford. Vol. 498, no. 3 (Nov. 2020), p. 3985–3994 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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