The strong correlation between atmospheric temperature and central black hole mass among massive galaxies is consistent with a linear relationship between black hole mass and the energy required to lift the atmosphere
The QuaStar Survey (Bish et al. 2021) pairs absorption-line measurements of quasars and galactic stars along similar lines of sight to constrain the contents of our galaxy's circumgalactic medium
Searches for the galaxies associated with low-metallicity circumgalactic clouds reveal one population of clouds associated with galactic halos and another population that appears to be more distant from detectable galaxies