"Gamma-ray observations of the Crab Region using a coded-aperture teles" by Mark L. McConnell, P. P. Dunphy et al.
 

Abstract

The region of the Galactic anticenter, including the Crab Nebula, was observed during a balloon flight of the University of New Hampshire Directional Gamma-Ray Telescope employing the coded-aperture imaging technique to image celestial gamma-radiation between 160 keV and 9.3 MeV. The background systematics are treated with a simple and relatively straightforward correction procedure. The results demonstrate that the coded-aperture procedure is a viable approach for imaging not only point sources of radiation, but also extended sources of emission. The results for the Crab's photon spectrum are consistent with a power-law spectrum. Upper limits on the flux levels of line emission at 405 keV and 1050 keV and on the flux from the X-ray binary source A0535 + 26 and diffuse Galactic emission from the anticenter region are derived.

Department

Physics

Publication Date

10-1987

Journal Title

Astrophysical Journal

Publisher

European Southern Observatory (ESO)

Digital Object Identifier (DOI)

10.1086/165650

Document Type

Article

Comments

For copyright information please see: http://www.adsabs.harvard.edu/ >

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