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Real-Time Optical Flux Limits from Gamma-Ray Bursts Measured by the Gamma-Ray Optical Counterpart Search ExperimentThe Gamma-Ray Optical Counterpart Search Experiment presents new experimental upper limits on the optical flux from gamma-ray bursts (GRBs). Our experiment consisted of a fully automated very wide-field opto-electronic detection system that imaged locations of GRBs within a few seconds of receiving trigger signals provided by BATSE's real-time burst coordinate distribution network. The experiment acquired 3800 observing hours, recording 22 gamma-ray burst triggers within approx. 30 s of the start of the burst event. Some of these bursts were imaged while gamma-ray radiation was being detected by BATSE. We identified no optical counterparts associated with gamma-ray bursts among these events at the mV approx. 7.0-8.3 sensitivity level. We find the ratio of the upper limit to the V-band optical flux, F nu, to the gamma-ray fluence, Phi gamma, from these data to be 1 x 10(exp-18) less than F nu Phi gamma less than 2 x 10(exp -16).
Document ID
19990018638
Acquisition Source
Marshall Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Park, H. S.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Ables, E.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Band, D. L.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Barthelmy, S. D.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Bionta, R. M.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Butterworth, P. S.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Cline, T. L.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Ferguson, D. H.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Fishman, G. J.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Gehrels, N.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Hurley, K.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Kouveliotou, C.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Lee, B. C.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Meegan, C. A.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Ott, L. L.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Parker, E. L.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Date Acquired
August 19, 2013
Publication Date
November 1, 1997
Publication Information
Publication: Astrophysical Journal
Volume: 490
Subject Category
Space Radiation
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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