The intercloud cosmic ray ionization rate

Details The intercloud cosmic ray ionization rate The intercloud cosmic ray ionization rate

Aug 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978a%26a....68...65h&link_type=abstract

Astronomy and Astrophysics, vol. 68, no. 1-2, Aug. 1978, p. 65-67.

Astronomy and Astrophysics

Astrophysics

27

Cosmic Rays, Gas Ionization, Interstellar Gas, Ion Production Rates, Ionizing Radiation, Particle Flux Density, Plasma Clouds, Screening

Scientific paper

It is shown that the ionizing frequencies inferred for interstellar clouds from measurements of OH and HD are consistent with the predicted intercloud ionizing frequency when account is taken of the cosmic-ray screening mechanism proposed by Skilling and Strong (1976). The cosmic-ray screening theory is used to obtain estimates of the intercloud ionization frequencies at several locations in the interstellar medium. An ionizing frequency of 2 x 10 to the -14th power per sec may be appropriate for the direction towards Omicron Per and of 3 x 10 to the -17th power per sec towards Epsilon Per. For other regions, values between 2 x 10 to the -16th power per sec and 1 x 10 to the 15th power per sec are obtained.

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