Gamma ray burst optical counterpart search experiment (GROCSE)

Journal Article · Thu Aug 01 04:00:00 EDT 1996 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.51607· OSTI ID:526786

Park, H; Ables, E; Bionta, R M; Ott, L; Parker, E ^[1]; Akerlof, C; Lee, B; Wallace, S ^[2]; Barthelmy, S; Butterworth, P; Cline, T; Gehrels, N ^[3]; Fishman, G ^[4]; Kouveliotou, C ^[5]; Meegan, C ^[4]; Ferguson, D ^[6]

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1. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
2. University of Michigan, Ann Arbor, Michigan 48109 (United States)
3. NASA/Goddard Space Flight Genter, Greenbelt, Maryland 20771 (United States)
4. NASA/Marshall Space Flight Center, Huntsville, Alabama 35812 (United States)
5. USRA at NASA/Marshall Space Flight Center, Huntsville, Alabama 35812 (United States)
6. Earth Watch Inc., Pleasanton, California 94550 (United States)

GROCSE (Gamma-Ray Optical Counterpart Search Experiment) is a system of automated telescopes that search for simultaneous optical activity associated with gamma ray bursts in response to real-time burst notifications provided by the BATSE/BACODINE network. The first generation system, GROCSE I, is sensitive down to M{sub V}{approximately}8.5 and requires an average of 12 seconds to obtain the first images of the gamma ray burst error box defined by the BACODINE trigger. The collaboration is now constructing a second generation system which has a 4 second slewing time and can reach M{sub V}{approximately}14 with a 5 second exposure. GROCSE II consists of 4 cameras on a single mount. Each camera views the night sky through a commercial Canon lens (f/1.8, focal length 200 mm) and utilizes a 2K{times}2K Loral CCD. Light weight and low noise custom readout electronics were designed and fabricated for these CCDs. The total field of view of the 4 cameras is 17.6{times}17.6{degree}. GROCSE II will be operating by the end of 1995. In this paper, we present an overview of the GROCSE system and the results of measurements with a GROCSE II prototype unit. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 526786
• Report Number(s): CONF-9510332--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 384; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CHARGE-COUPLED DEVICES
CORRELATIONS
COSMIC GAMMA BURSTS
GAMMA ASTRONOMY
IMAGES
REAL TIME SYSTEMS
TELESCOPES