Peer-Reviewed Journal Details
Mandatory Fields
AKERLOF, CW,CAWLEY, MF,CHANTELL, M,FEGAN, DJ,HARRIS, K,HILLAS, AM,JENNINGS, DG,LAMB, RC,LAWRENCE, MA,LANG, MJ,LEWIS, DA,MEYER, DI,MOHANTY, G,OFLAHERTY, KS,PUNCH, M,REYNOLDS, PT,SCHUBNELL, MS,WEEKES, TC,WHITAKER, T
1991
August
Astrophysical Journal
LOCATING VERY-HIGH-ENERGY GAMMA-RAY SOURCES WITH ARCMINUTE ACCURACY
Published
()
Optional Fields
GAMMA-RAYS, GENERAL INSTRUMENTS NEBULAE, CRAB NEBULA STARS, INDIVIDUAL (GEMINGA)
377
97
100
The angular accuracy of gamma-ray detectors is intrinsically limited by the physical processes involved in photon detection. Although a number of pointlike sources were detected by the COS B satellite, only two have been unambiguously identified by time signature with counterparts at longer wavelengths. By taking advantage of the extended longitudinal structure of VHE gamma-ray showers, measurements in the TeV energy range can pin-point source coordinates to arcminute accuracy. This has now been demonstrated with new data analysis procedures applied to observations of the Crab Nebula using Cherenkov air shower imaging techniques. With two telescopes in coincidence, the individual event circular probable error will be 0-degrees.13. The half-cone angle of the field of view is effectively 1-degrees.
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