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Title:
A new analysis method for reconstructing the arrival direction of TeV gamma rays using a single imaging atmospheric Cherenkov telescope
Authors:
Lessard, R. W.; Buckley, J. H.; Connaughton, V.; Le Bohec, S.
Affiliation:
AA(Department of Physics, Purdue University, 47907, West Lafayette, IN, USA), AB(Department of Physics, Washington University, 63130, St. Louis, MO, USA), AC(NASA, Marshall Space Flight Center, 35812, Huntsville, AL, USA), AD(Department of Physics and Astronomy, Iowa State University, 50011, Ames, IA, USA)
Publication:
Astroparticle Physics, Volume 15, Issue 1, p. 1-18. (APh Homepage)
Publication Date:
03/2001
Origin:
ELSEVIER
DOI:
10.1016/S0927-6505(00)00133-X
Bibliographic Code:
2001APh....15....1L

Abstract

We present a method of atmospheric Cherenkov imaging which reconstructs the unique arrival direction of TeV gamma rays using a single telescope. The method is derived empirically and utilizes several features of gamma-ray-induced air showers which determine, to a precision of /0.12°, the arrival direction of photons on an event-by-event basis. Data from the Whipple Observatory's 10 m gamma-ray telescope are utilized to test selection methods based on source location. The results compare these selection methods with traditional techniques and three different camera fields of view. The method will be discussed in the context of a search for a gamma-ray signal from a point source located anywhere within the field of view and from regions of extended emission.
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