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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Neutral outflows detected in 57% of z~3.5 quiescent galaxies via NaI D, with mass rates that can suppress star formation but suggest short-timescale recycling instead of permanent quenching.
Half of strong CIII] emitters at z=5-7 show secure AGN signatures, with median equivalent width rising 0.67 dex relative to z=3-4 galaxies.
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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There and back again? Neutral outflows in z~3.5 quiescent galaxies
Neutral outflows detected in 57% of z~3.5 quiescent galaxies via NaI D, with mass rates that can suppress star formation but suggest short-timescale recycling instead of permanent quenching.
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The AGN nature of strong CIII emitters in the Early Universe with JWST
Half of strong CIII] emitters at z=5-7 show secure AGN signatures, with median equivalent width rising 0.67 dex relative to z=3-4 galaxies.