ENERGETIC GAMMA RAY EMISSION FROM THE GENERAL DIRECTION OF THE CYGNUS CONSTELLATION.
Abstract
A combination nuclear emulsion and spark chamber gamma ray telescope has been flown on a high altitude balloon to study a region in the constellation Cygnus for evidence of possible point source or line source emission of E > 100 MeV gamma rays. The region surveyed in this observation covers approximately 280 degrees to 315 degrees R. A. and 25 degrees N to 45 degrees N declination. In this region lie two potential point sources, Cyg A and Cyg XR-1, together with a section of the galactic plane covering galactic longitudes of 60 to 90 degrees. The response of the detector has been calculated using a Monte-Carlo simulation. This enables us to derive an energy spectrum and flux value for the general background of gamma rays, which are presumably atmospheric in origin. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1969
- Accession Number
- AD0694460
Entities
People
- Cecil Jake Waddington
- J. V. Valdez
- P. S. Freier
Organizations
- University of Minnesota