Elements according to maximal contribution to Rayleigh scattering if all hydrogen is in atomic form (or molecular form, given in parentheses).
|Element||Z2 × nZ/nH|
|HI (H2)||1 (2)|
|Other elements (total)||≲ 0.01|
Notes. nH is the total number density of hydrogen atoms in HI or H2 form. Solar photospheric abundances from Asplund et al. (2009) are assumed.
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