Severe gas expulsion and expansion in a primordial star cluster, combined with a top-heavy IMF, can reproduce the high velocity dispersion and broad stream of C-19 without dark matter subhalos.
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A metallicity- and SFR-dependent galaxy-wide IMF in semi-analytical models reproduces the mass-metallicity relation and quenched ellipticals more accurately than constant-IMF models, with self-regulation set by gas accretion rates near the Hubble constant.
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The formation of the C-19 progenitor: a primordial cluster heated by gas expulsion
Severe gas expulsion and expansion in a primordial star cluster, combined with a top-heavy IMF, can reproduce the high velocity dispersion and broad stream of C-19 without dark matter subhalos.
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Self-regulated galaxy evolution within a self-consistently varying galaxy-wide IMF
A metallicity- and SFR-dependent galaxy-wide IMF in semi-analytical models reproduces the mass-metallicity relation and quenched ellipticals more accurately than constant-IMF models, with self-regulation set by gas accretion rates near the Hubble constant.