Relative Intensities of Hydrogen Recombination Lines in Gaseous Nebulae

RECENTLY, Gardner and McGee1 have published measurements on the 126α, 159β and 158β recombination lines of hydrogen in two galactic nebulae. These lines have frequencies differing by less than 2 per cent and are therefore observed with the same beamwidth. Their results are summarized in Table 1. TL is the measured peak line temperature above the continuum… CONTINUE READING