TY - RPRT TI - Code package for calculating modified cosmic ionization and thermal histories with dark matter and other exotic energy injections AU - Liu, Hongwan AU - Ridgway, Gregory W. AU - Slatyer, Tracy R. PY - 2020 DO - 10.1103/physrevd.101.023530 UR - https://www.osti.gov/biblio/1596611 ID - 1596611 ER -