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Published August 1975 | Published
Book Section - Chapter Open

Molecular hydrogen in the galaxy and galactic gamma rays


Estimates made of column densities of H_2 at galactic longitude equals 0° indicate that H_2 is far more abundant than HI in the inner galaxy and is the key to an explanation of the gamma-ray observations. This is also reflected in the correlation of galactic longitude and latitude distributions of gamma-rays and molecular clouds. Particularly strong evidence is found from the galactic survey of CO emission at 2.64 mm. The cosmic-ray distribution inferred from the calculations is not uniform but only weakly dependent on the total gas distribution in the inner galaxy.

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© 1975 MPE. Provided by the NASA Astrophysics Data System.

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Published - 1975ICRC____1___46S.pdf


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August 19, 2023
October 20, 2023