Binding energies, hyperfine structure, and magnetic dipole decay rates for ${\mathrm{Os}}^{-}{5d}^7{6s}^2{}^{4}F$ levels

Relativistic-configuration-interaction calculations predict that the ${5d}^7{6s}^{2}J=9/2,$ 7/2, 5/2 and 3/2 ${}^{4}F$ levels of ${\mathrm{Os}}^{-}$ are all bound with binding energies 1.048, 0.508, 0.292, and 0.211 eV, respectively. To aid future experimental work, hyperfine structure constants for all levels and magnetic dipole decay rates have also been calculated.