Notes. The columns, from left to the right, show the atomic species, the line core wavelength, the loggf of the transition, the dominant configuration and term designation for the lower and upper levels, the total angular momentum quantum numbers of the lower and upper levels, and the calculated line broadening cross-section σ due to hydrogen atom impact at a collision velocity of 10⁴ m s⁻¹ and corresponding velocity dependence parameter α. Units for the wavelength are Å and atomic units (they correspond to the square of the Bohr’s radius, i.e. 2.80 × 10⁻²¹ m²) for the cross-section σ. The velocity parameter α is dimensionless.