Tomorrow at the Heidelberg Joint Astronomical Colloquium, Anna-Christina Eilers will introduce new approaches to probing the early growth of supermassive black holes and highlight new results from deep spectroscopic observations of background galaxies behind a luminous high-redshift quasar, which allow us to tomographically map the quasar’s ionized bubble, constraining the obscured fraction of quasars, their emission geometry, and the timescales of SMBH growth

https://physik.uni-heidelberg.de/hephysto/index.php?s=talk&id=11993