First ALMA [CII] observations of high-redshift quiescent galaxies reveal gas fractions from 0.1% to 25%, dust temperatures of 40-50 K, strong [CII] deficits, and merger-like features, suggesting merger-driven quenching with non-stellar dust heating.
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UVJ colors saturate below log(sSFR) ~ -10.5; new UV/MIR color-color diagrams allow more efficient selection of galaxies with substantially lower ongoing star formation.
citing papers explorer
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A first [CII] view of high-z quiescent galaxies
First ALMA [CII] observations of high-redshift quiescent galaxies reveal gas fractions from 0.1% to 25%, dust temperatures of 40-50 K, strong [CII] deficits, and merger-like features, suggesting merger-driven quenching with non-stellar dust heating.
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Beyond UVJ: More Efficient Selection of Quiescent Galaxies With UV / Mid-IR Fluxes
UVJ colors saturate below log(sSFR) ~ -10.5; new UV/MIR color-color diagrams allow more efficient selection of galaxies with substantially lower ongoing star formation.