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Searching for Correlations between Satellite Galaxy Populations and the Cold Circumgalactic Medium around TNG50 Galaxies

  • Authors: Mitali Damle, Stephanie Tonnesen, Martin Sparre, Philipp Richter

Mitali Damle et al 2025 The Astrophysical Journal 986 .

  • Provider: AAS Journals

Caption: Figure 2.

Total cold gas mass, Mcg, (in M) vs. number of satellite galaxies per halo (Nsats) for CGM+Satellites (top panels) and CGM-Satellites (bottom panels) for the log M*C = 10.160–10.405 (left panels), log M*C = 10.453–10.715 (middle panels), and log M*C = 10.931–11.288 (right panels) bin halos. Halos belonging to the 25th (plus symbols), interquartile (star symbols), and 75th (filled circles) quartiles are shown for each bin. Respective median values with 1σ ranges (colored cross symbols) are shown for each quartile. In all three mass bins, when including gas associated with satellite galaxies (top panels), there is more Mcg in satellite-rich systems than in satellite-poor systems.

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