Feasibility of a small, rapid optical/IR response, next generation gamma-ray burst missionстатья
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Дата последнего поиска статьи во внешних источниках: 19 декабря 2017 г.
Аннотация:We present motivations for and study feasibility of a small, rapid-optical/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 (similar to 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 cm(2) of detector area would still detect and locate about 25 GRB yr(-1) for a trigger threshold of 6.5 sigma. About 23% of X ray located GRB would be detected optically for a 10 cm diameter instrument (similar to 6 yr(-1) for the 6.5 sigma X-ray trigger).