The Continuous Absorption Coefficient of Atomic and Molecular Negative Ions

Abstract

The continuous absorption coefficient of the free–free transitions of 17 atomic and molecular negative ions are reported for the temperature and wavelength ranges |$100\,\leqslant\,T(K)\leqslant15\,000,\,0\cdot5\leqslant\lambda (\mu )\leqslant10$|⁠. We give an analytical expression for some molecular negative ions of astrophysical interest.