Calculated spectra for HeH+ and its effect on the opacity of cool metal poor stars

Elodie A. Engel, Natasha Doss, Gregory J. Harris +1

The wavelength and Einstein A coefficient are calculated for all rotation-vibration transitions of ${}^4$He${}^1$H${}^{+}$, ${}^3$He${}^1$H${}^{+}$, ${}^4$He${}^2$H${}^{+}$ and ${}^3$He${}^2$H${}^{+}$, giving a c…