SDSS-IV MaNGA : properties of galaxies with kinematically decoupled stellar and gaseous components
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/163664 |
Resumo: | We study the properties of 66 galaxies with kinematically misaligned gas and stars from MaNGA survey. The fraction of kinematically misaligned galaxies varies with galaxy physical parameters, i.e. M∗, SFR and sSFR. According to their sSFR, we further classify these 66 galaxies into three categories, 10 star-forming, 26 ‘Green Valley’ and 30 quiescent ones. The properties of different types of kinematically misaligned galaxies are different in that the starforming ones have positive gradient in Dn4000 and higher gas-phase metallicity, while the green valley/quiescent ones have negative Dn4000 gradients and lower gas-phase metallicity on average. There is evidence that all types of the kinematically misaligned galaxies tend to live in more isolated environment. Based on all these observational results, we propose a scenario for the formation of star-forming galaxies with kinematically misaligned gas and stars − the progenitor accretes misaligned gas from a gas-rich dwarf or cosmic web, the cancellation of angular momentum from gas–gas collisions between the pre-existing gas and the accreted gas largely accelerates gas inflow, leading to fast centrally concentrated star formation. The higher metallicity is due to enrichment from this star formation. For the kinematically misaligned green valley and quiescent galaxies, they might be formed through gas-poor progenitors accreting kinematically misaligned gas from satellites which are smaller in mass. |
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Jin, YifeiChen, YanmeiShi, YongTremonti, Christy A.Bershady, Matthew A.Merrifield, MichaelEmsellem, EricFu, HaiWake, D.A.Bundy, KevinLin, LihwaiArgudo-Fernández, MariaHuang, SongStark, David V.Storchi-Bergmann, ThaisaBizyaev, D.Brownstein, Joel R.Chisholm, John P.Guo, QiHao, LeiHu, JianLi, ChengLi, RanMasters, K.L.Malanushenko, E.Pan, K.Riffel, Rogemar AndréRoman-Lopes, AlexandreSimmons, Audrey E.Thomas, D.Wang, LanWestfall, Kyle B.Yan, Renbin2017-07-05T02:39:42Z20160035-8711http://hdl.handle.net/10183/163664001021306We study the properties of 66 galaxies with kinematically misaligned gas and stars from MaNGA survey. The fraction of kinematically misaligned galaxies varies with galaxy physical parameters, i.e. M∗, SFR and sSFR. According to their sSFR, we further classify these 66 galaxies into three categories, 10 star-forming, 26 ‘Green Valley’ and 30 quiescent ones. The properties of different types of kinematically misaligned galaxies are different in that the starforming ones have positive gradient in Dn4000 and higher gas-phase metallicity, while the green valley/quiescent ones have negative Dn4000 gradients and lower gas-phase metallicity on average. There is evidence that all types of the kinematically misaligned galaxies tend to live in more isolated environment. Based on all these observational results, we propose a scenario for the formation of star-forming galaxies with kinematically misaligned gas and stars − the progenitor accretes misaligned gas from a gas-rich dwarf or cosmic web, the cancellation of angular momentum from gas–gas collisions between the pre-existing gas and the accreted gas largely accelerates gas inflow, leading to fast centrally concentrated star formation. The higher metallicity is due to enrichment from this star formation. For the kinematically misaligned green valley and quiescent galaxies, they might be formed through gas-poor progenitors accreting kinematically misaligned gas from satellites which are smaller in mass.application/pdfengMonthly notices of the Royal Astronomical Society. Oxford. Vol. 463, no. 1 (Nov. 2016), p. 913-926CinemáticaFormacao de galaxiasMapeamentos astronômicosEvolucao estelarPopulacoes estelaresMetalicidadeGalaxy: abundancesGalaxies: evolutionGalaxies: formationGalaxies: stellar contentGalaxies: structureSDSS-IV MaNGA : properties of galaxies with kinematically decoupled stellar and gaseous componentsEstrangeiroinfo: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:UFRGSORIGINAL001021306.pdf001021306.pdfTexto completo (inglês)application/pdf2122724http://www.lume.ufrgs.br/bitstream/10183/163664/1/001021306.pdffac511b22bcfe5198f47c64a26f722fdMD51TEXT001021306.pdf.txt001021306.pdf.txtExtracted Texttext/plain63617http://www.lume.ufrgs.br/bitstream/10183/163664/2/001021306.pdf.txtb93ca44b98f0537f729bb267054930f2MD52THUMBNAIL001021306.pdf.jpg001021306.pdf.jpgGenerated Thumbnailimage/jpeg2097http://www.lume.ufrgs.br/bitstream/10183/163664/3/001021306.pdf.jpgc5a1ae84619c7d076073556f23d2a588MD5310183/1636642021-09-18 04:39:33.640672oai:www.lume.ufrgs.br:10183/163664Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-09-18T07:39:33Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
SDSS-IV MaNGA : properties of galaxies with kinematically decoupled stellar and gaseous components |
title |
SDSS-IV MaNGA : properties of galaxies with kinematically decoupled stellar and gaseous components |
spellingShingle |
SDSS-IV MaNGA : properties of galaxies with kinematically decoupled stellar and gaseous components Jin, Yifei Cinemática Formacao de galaxias Mapeamentos astronômicos Evolucao estelar Populacoes estelares Metalicidade Galaxy: abundances Galaxies: evolution Galaxies: formation Galaxies: stellar content Galaxies: structure |
title_short |
SDSS-IV MaNGA : properties of galaxies with kinematically decoupled stellar and gaseous components |
title_full |
SDSS-IV MaNGA : properties of galaxies with kinematically decoupled stellar and gaseous components |
title_fullStr |
SDSS-IV MaNGA : properties of galaxies with kinematically decoupled stellar and gaseous components |
title_full_unstemmed |
SDSS-IV MaNGA : properties of galaxies with kinematically decoupled stellar and gaseous components |
title_sort |
SDSS-IV MaNGA : properties of galaxies with kinematically decoupled stellar and gaseous components |
author |
Jin, Yifei |
author_facet |
Jin, Yifei Chen, Yanmei Shi, Yong Tremonti, Christy A. Bershady, Matthew A. Merrifield, Michael Emsellem, Eric Fu, Hai Wake, D.A. Bundy, Kevin Lin, Lihwai Argudo-Fernández, Maria Huang, Song Stark, David V. Storchi-Bergmann, Thaisa Bizyaev, D. Brownstein, Joel R. Chisholm, John P. Guo, Qi Hao, Lei Hu, Jian Li, Cheng Li, Ran Masters, K.L. Malanushenko, E. Pan, K. Riffel, Rogemar André Roman-Lopes, Alexandre Simmons, Audrey E. Thomas, D. Wang, Lan Westfall, Kyle B. Yan, Renbin |
author_role |
author |
author2 |
Chen, Yanmei Shi, Yong Tremonti, Christy A. Bershady, Matthew A. Merrifield, Michael Emsellem, Eric Fu, Hai Wake, D.A. Bundy, Kevin Lin, Lihwai Argudo-Fernández, Maria Huang, Song Stark, David V. Storchi-Bergmann, Thaisa Bizyaev, D. Brownstein, Joel R. Chisholm, John P. Guo, Qi Hao, Lei Hu, Jian Li, Cheng Li, Ran Masters, K.L. Malanushenko, E. Pan, K. Riffel, Rogemar André Roman-Lopes, Alexandre Simmons, Audrey E. Thomas, D. Wang, Lan Westfall, Kyle B. Yan, Renbin |
author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Jin, Yifei Chen, Yanmei Shi, Yong Tremonti, Christy A. Bershady, Matthew A. Merrifield, Michael Emsellem, Eric Fu, Hai Wake, D.A. Bundy, Kevin Lin, Lihwai Argudo-Fernández, Maria Huang, Song Stark, David V. Storchi-Bergmann, Thaisa Bizyaev, D. Brownstein, Joel R. Chisholm, John P. Guo, Qi Hao, Lei Hu, Jian Li, Cheng Li, Ran Masters, K.L. Malanushenko, E. Pan, K. Riffel, Rogemar André Roman-Lopes, Alexandre Simmons, Audrey E. Thomas, D. Wang, Lan Westfall, Kyle B. Yan, Renbin |
dc.subject.por.fl_str_mv |
Cinemática Formacao de galaxias Mapeamentos astronômicos Evolucao estelar Populacoes estelares Metalicidade |
topic |
Cinemática Formacao de galaxias Mapeamentos astronômicos Evolucao estelar Populacoes estelares Metalicidade Galaxy: abundances Galaxies: evolution Galaxies: formation Galaxies: stellar content Galaxies: structure |
dc.subject.eng.fl_str_mv |
Galaxy: abundances Galaxies: evolution Galaxies: formation Galaxies: stellar content Galaxies: structure |
description |
We study the properties of 66 galaxies with kinematically misaligned gas and stars from MaNGA survey. The fraction of kinematically misaligned galaxies varies with galaxy physical parameters, i.e. M∗, SFR and sSFR. According to their sSFR, we further classify these 66 galaxies into three categories, 10 star-forming, 26 ‘Green Valley’ and 30 quiescent ones. The properties of different types of kinematically misaligned galaxies are different in that the starforming ones have positive gradient in Dn4000 and higher gas-phase metallicity, while the green valley/quiescent ones have negative Dn4000 gradients and lower gas-phase metallicity on average. There is evidence that all types of the kinematically misaligned galaxies tend to live in more isolated environment. Based on all these observational results, we propose a scenario for the formation of star-forming galaxies with kinematically misaligned gas and stars − the progenitor accretes misaligned gas from a gas-rich dwarf or cosmic web, the cancellation of angular momentum from gas–gas collisions between the pre-existing gas and the accreted gas largely accelerates gas inflow, leading to fast centrally concentrated star formation. The higher metallicity is due to enrichment from this star formation. For the kinematically misaligned green valley and quiescent galaxies, they might be formed through gas-poor progenitors accreting kinematically misaligned gas from satellites which are smaller in mass. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016 |
dc.date.accessioned.fl_str_mv |
2017-07-05T02:39:42Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/163664 |
dc.identifier.issn.pt_BR.fl_str_mv |
0035-8711 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001021306 |
identifier_str_mv |
0035-8711 001021306 |
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http://hdl.handle.net/10183/163664 |
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. 463, no. 1 (Nov. 2016), p. 913-926 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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