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arXiv · 1212.6570

Feasibility of a Small, Rapid Optical-to-IR Response, Next Generation Gamma Ray Burst Mission

B. Grossan·G. F. Smoot·V. V. Bogomolov·S. I. Svertilov·N. N. Vedenkin·M. Panasyuk·B. Goncharov·G. Rozhkov·K. Saleev·E. Grobovskoj·A. S. Krasnov·V. S. Morozenko·V. I. Osedlo·E. Rogkov·T. V. Vachenko·E. V. Linder
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Abstract

We present motivations for and study feasibility of a small, rapid optical to IR response gamma ray burst (GRB) space observatory. By analyzing existing GRB data, we give realistic detection rates for X-ray and optical/IR instruments of modest size under actual flight conditions. Given new capabilities of fast optical/IR response (about 1 s to target) and simultaneous multi-band imaging, such an observatory can have a reasonable event rate, likely leading to new science. Requiring a Swift-like orbit, duty cycle, and observing constraints, a Swift-BAT scaled down to 190 square cm of detector area would still detect and locate about 27 GRB per yr. for a trigger threshold of 6.5 sigma. About 23 percent of X-ray located GRB would be detected optically for a 10 cm diameter instrument (about 6 per yr. for the 6.5 sigma X-ray trigger).

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B. Grossan, G. F. Smoot, V. V. Bogomolov, S. I. Svertilov, N. N. Vedenkin, M. Panasyuk, B. Goncharov, G. Rozhkov, K. Saleev, E. Grobovskoj, A. S. Krasnov, V. S. Morozenko, V. I. Osedlo, E. Rogkov, T. V. Vachenko, E. V. Linder. 2012-12-28. Feasibility of a Small, Rapid Optical-to-IR Response, Next Generation Gamma Ray Burst Mission. https://doi.org/10.1051/eas%2F1361100

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