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Search for TeV emission from 4U 0115+63

Journal Article · · Astrophysical Journal; (United States)
DOI:https://doi.org/10.1086/170320· OSTI ID:5260151
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  1. Space Telescope Science Inst., Baltimore, MD (United States) Saint Patrick's College, Maynooth (Republic of Ireland) Univ. College, Dublin (Republic of Ireland) Leeds Univ. (England) NASA, Goddard Space Flight Center, Greenbelt, MD (United States) Whipple Observatory, Amado, AZ (United States)
While previous studies of the X-ray binary 4U 0115+63 suggest it to be a steady, TeV gamma-ray emitter, with pulses at the 3.6-sec neutron-star period, the present analysis of data obtained on 60 nights over a 4-yr period with an imaging gamma-ray telescope has uncovered no indication of TeV signals. The derived upper limit of 1 {times} 10 to the {minus}11th/sq-cm sec, for gamma-rays of energy above 0.7 TeV, is noted to be significantly below the previously reported fluxes. 52 refs.
OSTI ID:
5260151
Journal Information:
Astrophysical Journal; (United States), Journal Name: Astrophysical Journal; (United States) Vol. 376; ISSN ASJOA; ISSN 0004-637X
Country of Publication:
United States
Language:
English