Very high energy gamma ray astrophysics
Very high energy gamma ray astrophysics
The second reflector (project GRANITE) is on schedule. At present (January 1992) it and the 10 m reflector are obtaining stereoscopic views of gamma-ray air showers from the Crab Nebula which verify the expected performance of the twin reflector telescopes. With the additional improvements of the upgrade (a pending DOE proposal) the twin reflectors should reach a limiting intensity of 1% that of the Crab. The astonishing early results from the EGRET detector aboard the Compton Gamma Ray Observatory indicate that distant quasars (powered by supermassive black holes) are active at GeV energies. The Whipple instruments are poised to see if such behavior continues above 100 GeV, as well as perform sensitive observations of previously reported GeV (Geminga) and TeV (Hercules X-1, etc.) sources. In addition to observing sources and identifying their location in the sky to one arcminute, experiments are planned to search for WIMPS in the mass range 0.1 to 1 TeV, and to determine the abundance of anti-protons in the cosmic rays. The successful performance of the stereoscopic reflectors demonstrates the feasibility of the concept of arrays of Cherenkov receivers. Design studies for a much larger array (CASITA) are just beginning.
- University of North Texas United States
440104 -- Radiation Instrumentation-- High Energy Physics Instrumentation, General Physics, Radiation Detection, Cosmic Radio Sources, Crab Nebula, Progress Report, Gamma Astronomy, Neural Networks, Astronomy, Cosmic Gamma Sources, Cosmic Ray Sources, Supernova Remnants 661300* -- Other Aspects Of Physical Science-- (1992-), Data Acquisition Systems, Astrophysics, Document Types, Charge-Coupled Devices, Nebulae, Detection, Gamma Detection, 46 Instrumentation Related To Nuclear Science And Technology, 71 Classical And Quantum Mechanics, Cosmic Ray Detection, Semiconductor Devices, Telescopes
440104 -- Radiation Instrumentation-- High Energy Physics Instrumentation, General Physics, Radiation Detection, Cosmic Radio Sources, Crab Nebula, Progress Report, Gamma Astronomy, Neural Networks, Astronomy, Cosmic Gamma Sources, Cosmic Ray Sources, Supernova Remnants 661300* -- Other Aspects Of Physical Science-- (1992-), Data Acquisition Systems, Astrophysics, Document Types, Charge-Coupled Devices, Nebulae, Detection, Gamma Detection, 46 Instrumentation Related To Nuclear Science And Technology, 71 Classical And Quantum Mechanics, Cosmic Ray Detection, Semiconductor Devices, Telescopes
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