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What drives the velocity dispersion of ionized gas in star-forming galaxies?

dc.contributor.authorYu, Xiaolingpt_BR
dc.contributor.authorShi, Yongpt_BR
dc.contributor.authorChen, Yanmeipt_BR
dc.contributor.authorLaw, David R.pt_BR
dc.contributor.authorBizyaev, D.pt_BR
dc.contributor.authorBing, Longjipt_BR
dc.contributor.authorLi, Songlinpt_BR
dc.contributor.authorZhou, Luwenjiapt_BR
dc.contributor.authorChen, Jianhangpt_BR
dc.contributor.authorRiffel, Rogemar Andrépt_BR
dc.contributor.authorRiffel, Rogériopt_BR
dc.contributor.authorZhang, Kaipt_BR
dc.contributor.authorChen, Yongyunpt_BR
dc.contributor.authorPan, K.pt_BR
dc.date.accessioned2019-09-05T02:32:49Zpt_BR
dc.date.issued2019pt_BR
dc.identifier.issn0035-8711pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/198769pt_BR
dc.description.abstractWe analyse the intrinsic velocity dispersion properties of 648 star-forming galaxies observed by the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey, to explore the relation of intrinsic gas velocity dispersions with star formation rates (SFRs), SFR surface densities (⁠ΣSFR⁠), stellar masses, and stellar mass surface densities (Σ∗). By combining with high z galaxies, we found that there is a good correlation between the velocity dispersion and the SFR as well as ΣSFR⁠. But the correlation between the velocity dispersion and the stellar mass as well as Σ∗ is moderate. By comparing our results with predictions of theoretical models, we found that the energy feedback from star formation processes alone and the gravitational instability alone cannot fully explain simultaneously the observed velocity–dispersion/SFR and velocity–dispersion/ΣSFR relationships.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofMonthly notices of the royal astronomical society. Oxford. Vol. 486, no. 4 (July 2019), p. 4463–4472pt_BR
dc.rightsOpen Accessen
dc.subjectEvolucao galaticapt_BR
dc.subjectGalaxies: evolutionen
dc.subjectGalaxies: ISMen
dc.subjectMeio interestelarpt_BR
dc.subjectGalaxies: kinematics and dynamicsen
dc.subjectCinemática estelarpt_BR
dc.subjectDinamica estelarpt_BR
dc.subjectGalaxies: star formationen
dc.subjectFormacao de estrelaspt_BR
dc.titleWhat drives the velocity dispersion of ionized gas in star-forming galaxies?pt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001099190pt_BR
dc.type.originEstrangeiropt_BR


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