Low-Frequency Recombination Lines from Galaxies and AGN over Cosmic Time

Kimberly L. Emig, Sergei Balashev, Francoise Combes +10

Radio recombination lines (RRLs) at low frequencies (<10 GHz) can provide a multi-phase view of interstellar gas in nearby galaxies, absorption-line-systems, and AGN. Hydrogen RRLs…