Photodissociative absorption by H
2
+
in the solar photosphere |
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| Authors: | V S Lebedev L P Presnyakov I I Sobel’man |
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| Institution: | (1) Lebedev Physical Institute, Russian Academy of Sciences, Leninskii pr. 53, Moscow, 117924, Russia |
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| Abstract: | Photoabsorption by systems of hydrogen atoms and protons in the solar photosphere is studied. Analytical formulas for the partial cross sections for photodissociation of the H 2 + molecular ion are derived for the cases of fixed vibrational-rotational energy levels and averaging over a Boltzmann distribution for a given temperature. The photoabsorption coefficients for bound-free and free-free transitions of H-H+ in the solar photosphere are calculated. These are compared with the absorption coefficients for photo-ejection of an electron from a negative hydrogen ion H? and free-free transitions of an electron in the field of a hydrogen atom H. Results can be applied to the Sun and hotter stars. |
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