TeV Gamma Ray Emission from Southern Sky Objects and CANGAROO Project
PROCEEDINGS OF THE FOURTH COMPTON SYMPOSIUM, PTS 1 AND 2: PT 1: THE COMPTON OBSERVATORY IN REVIEW; PT 2: PAPERS AND PRESENTATIONS(2007)
摘要
We report recent results of the CANGAROO Collaboration on very high energy
gamma ray emission from pulsars, their nebulae, SNR and AGN in the southern
sky. Observations are made in South Australia using the imaging technique of
detecting atmospheric Cerenkov light from gamma rays higher than about 1 TeV.
The detected gamma rays are most likely produced by the inverse Compton process
by electrons which also radiate synchrotron X-rays. Together with information
from longer wavelengths, our results can be used to infer the strength of
magnetic field in the emission region of gamma rays as well as the energy of
the progenitor electrons. A description of the CANGAROO project is also given,
as well as details of the new telescope of 7 m diameter which is scheduled to
be in operation within two years.
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关键词
peculiar galaxies,gamma ray burst,magnetic field,gamma ray
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