Comparison of high energy gamma rays from absolute value of b greater than 30 deg with the galactic neutral hydrogen distributionHigh-energy gamma-ray (energy above 35 MeV) data from the SAS 2 satellite have been used to compare the intensity distribution of gamma rays with that of neutral hydrogen (H I) density along the line of sight, at high galactic latitudes (absolute values greater than 30 deg). A model has been constructed for the case where the observed gamma-ray intensity has been assumed to be the sum of a galactic component proportional to the H I distribution plus an isotropic extragalactic emission. A chi-squared test of the model parameters indicates that about 30% of the total high-latitude emission may originate within the Galaxy.
Document ID
19790053291
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Ozel, M. E. (Middle East Technical Univ. Ankara, Turkey)
Ogelman, H. (Middle East Technical Univ. Ankara, Turkey)
Tumer, T. (Middle East Technical University Ankara, Turkey)
Fichtel, C. E. (Middle East Technical Univ. Ankara, Turkey)
Hartman, R. C. (Middle East Technical Univ. Ankara, Turkey)
Kniffen, D. A. (Middle East Technical Univ. Ankara, Turkey)
Thompson, F. J. (NASA Goddard Space Flight Center Greenbelt, Md., United States)