Search for rays from the supernova 1987A at energies greater than 100 TeV

I. A. Bond*, E. Budding, M. J. Conway, K. B. Fenton, H. Fujii, Z. Fujii, H. Hasegawa, N. Hayashida, M. Honda, N. Hotta, J. E. Humble, S. Kabe, K. Kasahara, T. Kifune, A. Masaike, Y. Matsubara, K. Mitsui, Y. Miura, M. Mori, K. MurakamiY. Muraki, M. Nagano, K. Nakamura, T. Nakamura, P. M. Norris, Y. Ohashi, A. Okada, To Saito, M. Sakata, H. Sato, S. Shibata, M. Shima, J. R. Storey, T. Tanimori, M. Teshima, Shoji Torii, K. Uchino, Y. Watase, M. D. Woodhams, Y. Yamamoto, P. C M Yock, T. Yuda

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


We searched for ultrahigh-energy rays emitted by the supernova 1987A with a new cosmic-ray facility installed at the Black Birch Range in New Zealand. The observations from 13 October to 3 December 1987 suggest no clear clustering of events around the direction of the supernova. We conclude that an upper limit on the flux rays of energies greater than 100 TeV is 1.1×10-12 cm-2 s-1 (95% confidence limit) for a differential spectral index =2.0 and source distance d=50 kpc. This value gives an upper bound on the -ray luminosity of the supernova of 5.5×1038 erg s-1 for 1014, 1017 eV.

Original languageEnglish
Pages (from-to)1110-1113
Number of pages4
JournalPhysical Review Letters
Issue number12
Publication statusPublished - 1988
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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