Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988iowa.rept.....l&link_type=abstract
Progress Report, 1 May 1987 - 1 Feb. 1988 Iowa State Univ. of Science and Technology, Ames.
Astronomy and Astrophysics
Astrophysics
Astrophysics, Binary Stars, Gamma Ray Astronomy, Simulation, Telescopes, Cerenkov Counters, Crab Nebula, Gamma Rays
Scientific paper
The Whipple observatory Gamma Ray Collaboration has continued to make steady progress in its development of a highly sensitive stereoscopic imaging gamma-ray telescope (known as the HERCULES project). The milestones in this year's development include: the demonstration of the success of the imaging concept with a single camera by the detection of a very weak flux of gamma rays from the Crab Nebula at a high level of statistical significance (7 sigma), the confirmation of our detection of an anomalous pulsed flux from Hercules X-1 in the summer of 1986 by two other groups; this result has serious implications for the mechanism for gamma-ray emission in this binary source. The construction and installation of the new high resolution camera on the 10 m reflector; the realistic simulation of the sensitivity of this camera as well as that of the full HERCULES system was also undertaken. These, and other highlights of this year's program at the Iowa State University and the Smithsonian Astrophysical Observatory, are discussed in this paper.
Lamb R. G.
Lewis Aaron D.
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