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Record 1 of 10042
Comparison of high energy gamma rays from absolute value of b greater than 30 deg with the galactic neutral hydrogen distribution
Author and Affiliation:
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)
Abstract: High-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.
Publication Date: Jan 01, 1978
Document ID:
19790053291
(Acquired Dec 01, 1995)
Accession Number: 79A37304
Subject Category: SPACE RADIATION
Document Type: Conference Proceedings
Publication Information: (SEE A79-37301 15-93)
Publisher Information: Bulgaria
Meeting Information: International Cosmic Ray Conference; 15th; August 13-26, 1977; Plovdiv; Bulgaria
Financial Sponsor: NASA; United States
Organization Source: Middle East Technical Univ.; Ankara, Turkey
NASA Goddard Space Flight Center; Greenbelt, MD, United States
Description: 7p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: COSMIC RAYS; EXTRAGALACTIC RADIO SOURCES; GAMMA RAYS; HYDROGEN ATOMS; PARTICLE SIZE DISTRIBUTION; POLAR REGIONS; ASTRONOMICAL COORDINATES; DENSITY DISTRIBUTION; HYDROGEN CLOUDS; INTERSTELLAR MATTER; NEUTRAL PARTICLES
Imprint And Other Notes: In: In: International Cosmic Ray Conference, 15th, Plovdiv, Bulgaria, August 13-26, 1977, Conference Papers. Volume 1. (A79-37301 15-93) Sofia, B'lgarska Akademiia na Naukite, 1978, p. 30-36.
Availability Source: Other Sources
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