Probing Helium Reionization Through the ${}^3{\mathrm{He}}^{+}$ Hyperfine Transition Line

Arghyadeep Basu, Benedetta Ciardi, Enrico Garaldi

We investigate the hyperfine transition of ${}^3{\mathrm{He}}^{+}$ as a promising probe of the IGM during the final stages of helium reionization. Utilising the most recent helium re…