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dc.contributor.authorGallagher, Robertpt_BR
dc.contributor.authorMaiolino, Robertopt_BR
dc.contributor.authorBelfiore, Francescopt_BR
dc.contributor.authorDrory, Nivpt_BR
dc.contributor.authorRiffel, Rogériopt_BR
dc.contributor.authorRiffel, Rogemar Andrépt_BR
dc.date.accessioned2019-08-28T02:34:20Zpt_BR
dc.date.issued2019pt_BR
dc.identifier.issn0035-8711pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/198450pt_BR
dc.description.abstractSeveral models have predicted that stars could form inside galactic outflows and that this would be a new major mode of galaxy evolution. Observations of galactic outflows have revealed that they host large amounts of dense and clumpy molecular gas, which provide conditions suitable for star formation. We have investigated the properties of the outflows in a large sample of galaxies by exploiting the integral field spectroscopic data of the large MaNGA- SDSS4 galaxy survey. We find evidence for prominent star formation occurring inside at least 30 per cent of the galactic outflows in our sample, whilst signs of star formation are seen in up to half of the outflows. We also show that even if star formation is prominent inside many other galactic outflows, this may have not been revealed as the diagnostics are easily dominated by the presence of even faint active galactic nucleus and shocks. If very massive outflows typical of distant galaxies and quasars follow the same scaling relations observed locally, then the star formation inside high-z outflows can be up to several 100 M yr -¹ and could contribute substantially to the early formation of the spheroidal component of galaxies. Star formation in outflows can also potentially contribute to establishing the scaling relations between black holes and their host spheroids. Moreover, supernovae exploding on large orbits can chemically enrich in situ and heat the circumgalactic and intergalactic medium. Finally, young stars ejected on large orbits may also contribute to the reionization of the Universe.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofMonthly notices of the royal astronomical society. Oxford. Vol. 485, no. 3 (May 2019), p. 3409–3429pt_BR
dc.rightsOpen Accessen
dc.subjectGaláxias ativaspt_BR
dc.subjectGalaxies: activeen
dc.subjectGalaxies: evolutionen
dc.subjectEvolucao galaticapt_BR
dc.subjectGalaxies: formationen
dc.subjectFormacao de galaxiaspt_BR
dc.subjectCinemática estelarpt_BR
dc.subjectGalaxies: kinematics and dynamicsen
dc.subjectGalaxias Starburstpt_BR
dc.subjectGalaxies: starbursten
dc.titleWidespread star formation inside galactic outflowspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001098982pt_BR
dc.type.originEstrangeiropt_BR


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