Excitation of the 3.071mm Hyperfine Line in Li-Like 57-Fe in Astrophysical Plasmas

Noella L. D'Cruz, Craig L. Sarazin, Jacques Dubau

As noted first by Sunyaev & Churazov (1984), the 3.071 mm hyperfine line from ${}^{57}F{e}^{+23}$ might be observable in astrophysical plasmas. We assess the atomic processes which mig…