LINKS
Introduction to Gamma Ray Astronomy
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10 Meter Atmospheric Cherenkov Telescope  Recently the group has been monitoring
time variable signals from Markarian 421, a B L Lac galaxy some 500
million light-years distant, which has a superluminal jet of
relativistic particles beamed towards www. Present models suggest
that the enormous energy output of this galaxy derives from a rotating
supermassive black hole in its nucleus. In addition, another B L Lac galaxy,
Markarian 501, has been detected in the Gev domain.
The VHE Gamma-ray air shower simulations by DePauw-Purdue can be seen in
the following links: Currently the Whipple collaboration is in the process of carrying out an
upgrade of the present camera from 151 1" pixel elements to a 541
element camera consisting of both 1/2" and 1" pixel elements. The Purdue
HEAp group is responsible for the testing and calibration of the PMTs which will comprise the new camera.
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23 June 1999