Scanning Telescope for Optical Transient Detection Simultaneously With the Gamma-ray Bursts

Details Scanning Telescope for Optical Transient Detection Simultaneously With the Gamma-ray Bursts Scanning Telescope for Optical Transient Detection Simultaneously With the Gamma-ray Bursts

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe..52b&link_type=abstract

Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:

Astronomy and Astrophysics

Astrophysics

Scientific paper

We discuss the project of wide field optical telescope with panoramic photometrical detector for optical transients (OTs) detection simultaneously with gamma-ray bursters registration. The telescope with the size of focal field of 2circ-3circ scans gamma-ray telescope field of view. The focal picture is transmitted by fiber set onto a matrix of 10000 avalanche photodiods (APDs) with quantum efficiency about 80% and dead time of 10^{-6} s. Using APD as a detector allows investigating fine time structure of OT (flashes of about 10^{-4} s have been detected in the light curves of GRBs). It is possible to detect OTs of 17m at duration of 1 s and 13m at duration 1 ms by 1m telescope (1:1). The positional accuracy is better than 2^{''} and the probability of OT detection in the field of 30circ-40circ (the same as the BeppoSAX one) is about 1%.

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