The SNR W28 at TeV energies

/ Authors

G. Rowell, T. Naito, S. Dazeley, P. Edwards, S. Gunji, T. Hara, J. Holder, A. Kawachi, T. Kifune, Y. Matsubara

and 17 more authors

Y. Mizumoto, M. Mori, H. Muraishi, Y. Muraki, K. Nishijima, S. Ogio, J. Patterson, M. Roberts, T. Sako, K. Sakurazawa, R. Susukita, T. Tamura, T. Tanimori, G. Thornton, S. Yanagita, T. Yoshida, T. Yoshikoshi

/ Abstract

The southern supernova remnant (SNR) W28 was observed in 1994 and 1995 by the CANGAROO 3.8m telescope in a search for multi-TeV gamma ray emission, using the Cerenkov imaging technique. We obtained upper limits for a variety of point-like and extended features within a ±1° region and briefly discuss these results, together with that of EGRET within the framework of a shock acceleration model of the W28 SNR.

Journal: arXiv: Astrophysics

DOI: 10.1063/1.1291366