GOODS-ALMA 2.0: Starbursts in the main sequence reveal compact star formation regulating galaxy evolution prequenching

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dc.contributor.authorGomez-Guijarro, C.
dc.contributor.authorElbaz, D.
dc.contributor.authorXiao, M.
dc.contributor.authorKokorev, V., I
dc.contributor.authorMagdis, G. E.
dc.contributor.authorMagnelli, B.
dc.contributor.authorDaddi, E.
dc.contributor.authorValentino, F.
dc.contributor.authorSargent, M. T.
dc.contributor.authorDickinson, M.
dc.contributor.authorBethermin, M.
dc.contributor.authorFranco, M.
dc.contributor.authorPope, A.
dc.contributor.authorKalita, B. S.
dc.contributor.authorCiesla, L.
dc.contributor.authorDemarco, R.
dc.contributor.authorInami, H.
dc.contributor.authorRujopakarn, W.
dc.contributor.authorShu, X.
dc.contributor.authorWang, T.
dc.contributor.authorZhou, L.
dc.contributor.authorAlexander, D. M.
dc.contributor.authorBournaud, F.
dc.contributor.authorChary, R.
dc.contributor.authorFerguson, H. C.
dc.contributor.authorFinkelstein, S. L.
dc.contributor.authorGiavalisco, M.
dc.contributor.authorIono, D.
dc.contributor.authorJuneau, S.
dc.contributor.authorKartaltepe, J. S.
dc.contributor.authorLagache, G.
dc.contributor.authorLe Floc'h, E.
dc.contributor.authorLeiton, R.
dc.contributor.authorLeroy, L.
dc.contributor.authorLin, L.
dc.contributor.authorMotohara, K.
dc.contributor.authorMullaney, J.
dc.contributor.authorOkumura, K.
dc.contributor.authorPannella, M.
dc.contributor.authorPapovich, C.
dc.contributor.authorTreister, E.
dc.date.accessioned2025-01-20T21:10:21Z
dc.date.available2025-01-20T21:10:21Z
dc.date.issued2022
dc.description.abstractCompact star formation appears to be generally common in dusty star-forming galaxies (SFGs). However, its role in the framework set by the scaling relations in galaxy evolution remains to be understood. In this work we follow up on the galaxy sample from the GOODS-ALMA 2.0 survey, an ALMA blind survey at 1.1 mm covering a continuous area of 72.42 arcmin(2) using two array configurations. We derived physical properties, such as star formation rates, gas fractions, depletion timescales, and dust temperatures for the galaxy sample built from the survey. There exists a subset of galaxies that exhibit starburst-like short depletion timescales, but they are located within the scatter of the so-called main sequence of SFGs. These are dubbed starbursts in the main sequence and display the most compact star formation and they are characterized by the shortest depletion timescales, lowest gas fractions, and highest dust temperatures of the galaxy sample, compared to typical SFGs at the same stellar mass and redshift. They are also very massive, accounting for similar to 60% of the most massive galaxies in the sample (log(M-*/M-circle dot) > 11.0). We find trends between the areas of the ongoing star formation regions and the derived physical properties for the sample, unveiling the role of compact star formation as a physical driver of these properties. Starbursts in the main sequence appear to be the extreme cases of these trends. We discuss possible scenarios of galaxy evolution to explain the results drawn from our galaxy sample. Our findings suggest that the star formation rate is sustained in SFGs by gas and star formation compression, keeping them within the main sequence even when their gas fractions are low and they are presumably on the way to quiescence.
dc.fuente.origenWOS
dc.identifier.doi10.1051/0004-6361/202142352
dc.identifier.eissn1432-0746
dc.identifier.issn0004-6361
dc.identifier.urihttps://doi.org/10.1051/0004-6361/202142352
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/93576
dc.identifier.wosidWOS:000774214300003
dc.language.isoen
dc.revistaAstronomy & astrophysics
dc.rightsacceso restringido
dc.subjectgalaxies
dc.subjectevolution
dc.subjectgalaxies
dc.subjectfundamental parameters
dc.subjectgalaxies
dc.subjecthigh-redshift
dc.subjectgalaxies
dc.subjectstar formation
dc.subjectgalaxies
dc.subjectstructure
dc.subjectsubmillimeter
dc.subjectgalaxies
dc.titleGOODS-ALMA 2.0: Starbursts in the main sequence reveal compact star formation regulating galaxy evolution prequenching
dc.typeartículo
dc.volumen659
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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