Characterization of Two 2 mm detected Optically Obscured Dusty Star-forming Galaxies

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dc.contributor.authorManning, Sinclaire M.
dc.contributor.authorCasey, Caitlin M.
dc.contributor.authorZavala, Jorge A.
dc.contributor.authorMagdis, Georgios E.
dc.contributor.authorDrew, Patrick M.
dc.contributor.authorChampagne, Jaclyn B.
dc.contributor.authorAravena, Manuel
dc.contributor.authorBéthermin, Matthieu
dc.contributor.authorClements, David L.
dc.contributor.authorFinkelstein, Steven L.
dc.contributor.authorFujimoto, Seiji
dc.contributor.authorHayward, Christopher C.
dc.contributor.authorHodge, Jacqueline A.
dc.contributor.authorIlbert, Olivier
dc.contributor.authorKartaltepe, Jeyhan S.
dc.contributor.authorKnudsen, Kirsten K.
dc.contributor.authorKoekemoer, Anton M.
dc.contributor.authorMan, Allison W. S.
dc.contributor.authorSanders, David B.
dc.contributor.authorSheth, Kartik
dc.contributor.authorSpilker, Justin S.
dc.contributor.authorStaguhn, Johannes
dc.contributor.authorTalia, Margherita
dc.contributor.authorTreister, Ezequiel
dc.contributor.authorYun, Min S.
dc.date.accessioned2023-05-19T20:46:03Z
dc.date.available2023-05-19T20:46:03Z
dc.date.issued2022
dc.description.abstractThe 2 mm Mapping Obscuration to Reionization with ALMA (MORA) Survey was designed to detect high-redshift (z greater than or similar to 4), massive, dusty star-forming galaxies (DSFGs). Here we present two likely high-redshift sources, identified in the survey, whose physical characteristics are consistent with a class of optical/near-infrared (OIR)-invisible DSFGs found elsewhere in the literature. We first perform a rigorous analysis of all available photometric data to fit spectral energy distributions and estimate redshifts before deriving physical properties based on our findings. Our results suggest the two galaxies, called MORA-5 and MORA-9, represent two extremes of the "OIR-dark" class of DSFGs. MORA-5 (z(phot) = 4.3(-1.3)(+1.5)) is a significantly more active starburst with a star formation rate (SFR) of 830(-190)(+340) M-circle dot yr(-1) compared to MORA-9 (z(phot) = 4.3(-1.0)(+1.3)), whose SFR is a modest 200(-60)(+250) M-circle dot yr(-1). Based on the stellar masses (M-star approximate to 10(10-11) M-circle dot), space density (n similar to (5 +/- 2) x 10(-6) Mpc(-3), which incorporates two other spectroscopically confirmed OIR-dark DSFGs in the MORA sample at z = 4.6 and z = 5.9), and gas depletion timescales (<1 Gyr) of these sources, we find evidence supporting the theory that OIR-dark DSFGs are the progenitors of recently discovered 3 < z < 4 massive quiescent galaxies.
dc.fechaingreso.objetodigital2024-09-23
dc.fuente.origenORCID-mayo23
dc.identifier.doi10.3847/1538-4357/ac366a
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/69681
dc.language.isoen
dc.nota.accesocontenido completo
dc.rightsacceso abierto
dc.titleCharacterization of Two 2 mm detected Optically Obscured Dusty Star-forming Galaxieses_ES
dc.typeartículo
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