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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2 Pith papers cite this work. Polarity classification is still indexing.
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Forecasts indicate CSST can detect wide binaries in Segue 1 down to fb ~ 0.01 with 2300 stars but needs 6000 stars and fb ~ 0.1 to distinguish cusped from cored dark matter profiles.
citing papers explorer
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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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Constraining Dark Matter Density Profiles in UFDs with Wide Binaries: Forecast for the Chinese Space Station Survey Telescope
Forecasts indicate CSST can detect wide binaries in Segue 1 down to fb ~ 0.01 with 2300 stars but needs 6000 stars and fb ~ 0.1 to distinguish cusped from cored dark matter profiles.