Recent CANGAROO observations of extra-galactic objects
نویسندگان
چکیده
This report outlines recent notable extra-galactic source observations by the CANGAROO-II 10-m telescope. Flux upper limits above ∼400 GeV were obtained from observations of the BL Lacertae object, PKS2155−304, in 2000 and 2001. Diffuse gamma-ray emission from the starburst galaxy NGC 253 was also detected at a high confidence level, and E>10 TeV gamma-rays were observed with 5.7 σ significance fromMarkarian 421 by very large zenith angle observations.
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