Search for a dark matter gamma-ray signal from dwarf spheroidal galaxies with CACTUS
by Marleau, Peter Anthony, Ph.D., UNIVERSITY OF CALIFORNIA, DAVIS, 2007, 140 pages; 3283000

Abstract:

The Converted Atmospheric Cherenkov Telescope Using Solar II (CACTUS) is a wavefront-sampling, ground-based Cherenkov telescope located in the Mohave Desert near Daggett, California. CACTUS is currently the largest Cherenkov telescope in the world and is designed to detect astrophysical gamma-rays at energies above 50 GeV. During the summer of 2005, CACTUS completed an observational campaign on the dwarf spheroidal galaxy Draco. Draco is a member of the local group and is believed to have a very large dark matter component. A full analysis of this data set reveals that CACTUS did not observe a statistically significant gamma-ray flux from Draco. The implications of this null result for the nature of dark matter are discussed, examining the predicted annihilation gamma-ray flux for a variety of cold dark matter particle candidates.

 
AdviserMani Tripathi
SchoolUNIVERSITY OF CALIFORNIA, DAVIS
SourceDAI/B 68-09, p. , Dec 2007
Source TypeDissertation
SubjectsAstronomy; Particle physics
Publication Number3283000
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