Degree Type

Dissertation

Date of Award

1989

Degree Name

Doctor of Philosophy

Department

Physics and Astronomy

First Advisor

Richard C. Lamb

Abstract

This dissertation is on the use of Cherenkov imaging for background reduction in TeV Astronomy. The technique of measuring the angular distribution of Cherenkov light from air showers as a means of identifying the primary particle type has been predicted to lead to a significant increase in the sensitivity for ground-based [gamma]-ray telescopes. The hardware test of imaging successfully finds the Cherenkov light patterns from local cosmic ray particles using the Whipple Observatory collaboration's air Cherenkov telescope. This shows that a Whipple type imaging detector is sensitive to subtle images and therefore suitable for such a technique. A Monte Carlo simulation test confirms the current knowledge of the angular distribution of Cherenkov light expected from [gamma]-ray induced air showers. The search for TeV photons from two massive X-ray binaries, 4U0115+63 and V0332+53, using both uncut and image selected data sets shows little evidence for emission from either source.

DOI

https://doi.org/10.31274/rtd-180813-11253

Publisher

Digital Repository @ Iowa State University, http://lib.dr.iastate.edu/

Copyright Owner

Daryl Jack Macomb

Language

en

Proquest ID

AAI9014926

File Format

application/pdf

File Size

179 pages

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