Dissecting a 30 kpc galactic outflow at z 1.7

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dc.article.numberstad3004
dc.catalogadoraba
dc.contributor.authorShaban, Ahmed
dc.contributor.authorBordoloi, Rongmon
dc.contributor.authorChisholm, John
dc.contributor.authorRigby, Jane R.
dc.contributor.authorSharma, Soniya
dc.contributor.authorSharon, Keren
dc.contributor.authorTejos, Nicolas
dc.contributor.authorBayliss, Matthew B.
dc.contributor.authorBarrientos, Luis Felipe
dc.contributor.authorLópez, Sebastian
dc.contributor.authorLedoux, Cédric
dc.contributor.authorGladders, Michael G.
dc.contributor.authorFlorian, Michael K.
dc.date.accessioned2023-11-06T11:06:22Z
dc.date.available2023-11-06T11:06:22Z
dc.date.issued2023
dc.description.abstractWe present the spatially resolved measurements of a cool galactic outflow in the gravitationally lensed galaxy RCS0327 at z ≈ 1.703 using VLT/MUSE IFU observations. We probe the cool outflowing gas, traced by blueshifted Mg II and Fe II absorption lines, in 15 distinct regions of the same galaxy in its image-plane. Different physical regions, 5 to 7 kpc apart within the galaxy, drive the outflows at different velocities (Vout ~ -161 to -240 km s-1), and mass outflow rates ($\dot{M}_{out} \sim$ 183 to 527 M⊙ yr-1). The outflow velocities from different regions of the same galaxy vary by 80 km s-1, which is comparable to the variation seen in a large sample of star-burst galaxies in the local Universe. Using multiply lensed images of RCS0327, we probe the same star-forming region at different spatial scales (0.5 kpc2 -- 25 kpc2), we find that outflow velocities vary between ~ -120 to -242 km s-1, and the mass outflow rates vary between ~ 37 to 254 M⊙ yr-1. The outflow momentum flux in this galaxy is ≥ 100% of the momentum flux provided by star-formation in individual regions, and outflow energy flux is ≈ 10% of the total energy flux provided by star-formation. These estimates suggest that the outflow in RCS0327 is energy driven. This work shows the importance of small scale variations of outflow properties due to the variations of local stellar properties of the host galaxy in the context of galaxy evolution....
dc.fechaingreso.objetodigital2023-11-06
dc.fuente.origenORCID
dc.identifier.doi10.1093/mnras/stad3004
dc.identifier.eissn1365-2966
dc.identifier.issn0035-8711
dc.identifier.urihttps://doi.org/10.1093/mnras/stad3004
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/75236
dc.identifier.wosidWOS:001181951600016
dc.information.autorucInstituto de Astrofísica; Barrientos, Luis Felipe; 0000-0003-0151-0718; 102167
dc.issue.numero4
dc.language.isoen
dc.nota.accesoContenido completo
dc.pagina.final6320
dc.pagina.inicio6297
dc.revistaMonthly Notices of the Royal Astronomical Society
dc.rightsacceso abierto
dc.subjectGalaxies
dc.subjectEvolution – galaxies
dc.subjectHaloes – galaxies
dc.subjectHigh-redshift – gravitational lensing
dc.subjectStrong
dc.subject.ddc520
dc.subject.deweyAstronomíaes_ES
dc.titleDissecting a 30 kpc galactic outflow at z 1.7
dc.typeartículo
dc.volumen526
sipa.codpersvinculados102167
sipa.trazabilidadORCID;2023-11-06
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