TeV observations of Markarian 501 with the Milagrito water cerenkov detector

R. Atkins, W. Benbow, D. Berley, M. L. Chen, D. G. Coyne, R. S. Delay, B. L. Dingus, D. E. Dorfan, R. W. Ellsworth, C. Espinoza, D. Evans, A. Falcone, L. Fleysher, R. Pleysher, G. Gisler, J. A. Goodman, T. J. Haines, C. M. Hoffman, S. Hugenberger, L. A. KelleyI. Leonor, M. McConnell, J. F. McCullough, J. E. McEnery, R. S. Miller, A. I. Mincer, M. F. Morales, M. M. Murray, P. Nemethy, J. M. Ryan, M. Schneider, B. Shen, A. Shoup, C. Sinnis, A. J. Smith, G. W. Sullivan, T. N. Thompson, T. Tumer, K. Wang, M. O. Wascko, S. Westerhoff, D. A. Williams, T. Yang, G. B. Yodh

    Research output: Contribution to journalArticlepeer-review


    The Milagrito water Cerenkov detector near Los Alamos, New Mexico, was operated as a sky monitor at energies of a few TeV between 1997 February and 1998 May, including the period of the strong, long-lasting 1997 flare of Markarian 501. Milagrito served as a test run for the full Milagro detector. An event excess with a significance of 3.7 σ from Markarian 501 was observed, in agreement with expectations.

    Original languageEnglish (US)
    Pages (from-to)L25-L28
    JournalAstrophysical Journal
    Issue number1 PART 2
    StatePublished - Nov 1 1999


    • BL Lacertae objects: individual (Markarian 501)
    • Gamma rays: observations

    ASJC Scopus subject areas

    • Astronomy and Astrophysics
    • Space and Planetary Science


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