Search for GeV GRBs at Chacaltaya
Creators
- 1. Istituto di Cosmogeofisica del C.N.R., Torino (Italy)
- 2. Dipartimento di Fisica Generale dell'Universita' di Torino (Italy)
- 3. Department of Physics, Ehime University, Ehime 790 (Japan)
- 4. Department of Physics, Okayama University, Okayama 700 (Japan)
- 5. Department of Physics, Tokyo Institute of Technology, Meguro, Tokyo 152 (Japan)
- 6. Institute of Physical and Chemical Research, Wako, Saitama 351-01 (Japan)
- 7. Instituto de Investigaciones Fisicas, Universidad Mayor de San Andres, La Paz (Bolivia, Plurinational State of)
- 8. NASA Goddard Space Flight Center, Greenbelt, Maryland 20771 (United States)
- 9. NASA Marshall Space Flight Center, Huntsville, Alabama 35812 (United States)
Description
In this paper we present the results of a search for GeV Gamma Ray Bursts made by the INCA experiment during the first 9 months of operation. INCA, an air shower array located at Mount Chacaltaya (Bolivia) at 5200 m a.s.l., has been searching for GRBs since December 1996. Up to August, 1997, 34 GRBs detected by BATSE occurred in the field of view of the experiment. For any burst, the counting rate of the array in the 2 hours interval around the burst trigger time has been studied. No significant excess has been observed. Assuming for the bursts a power low energy spectrum extending up to 1 TeV with a slope α=-2 and a duration of 10 s, the obtained 1 GeV-1 TeV energy fluence upper limits range from 7.9 10-5 erg cm-2 to 3.5 10-3 erg cm-2 depending on the event zenith angles
Additional details
Identifiers
- DOI
- 10.1063/1.55419;
Publishing Information
- Journal Title
- AIP Conference Proceedings
- Journal Volume
- 428
- Journal Issue
- 1
- Journal Page Range
- p. 914-920
- ISSN
- 0094-243X
- CODEN
- APCPCS
Conference
- Title
- 4. Huntsville gamma-ray burst symposium
- Dates
- 15-20 Sep 1997
- Place
- Huntsville, AL (United States)
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40059384
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CHACALTAYA; COSMIC GAMMA BURSTS; COSMIC GAMMA SOURCES; COSMIC PHOTONS; COSMIC RAY DETECTION; COUNTING RATES; GAMMA ASTRONOMY; GAMMA DETECTION; GAMMA SPECTRA; GEV RANGE; OPERATION; SHOWER COUNTERS; TEV RANGE
- Descriptors DEC
- ASTRONOMY; BOLIVIA; BOSONS; COSMIC RADIATION; COSMIC RAY SOURCES; DETECTION; DEVELOPING COUNTRIES; ELEMENTARY PARTICLES; ENERGY RANGE; IONIZING RADIATIONS; LATIN AMERICA; MASSLESS PARTICLES; MEASURING INSTRUMENTS; PHOTONS; PRIMARY COSMIC RADIATION; RADIATION DETECTION; RADIATION DETECTORS; RADIATIONS; SOUTH AMERICA; SPECTRA
Optional Information
- Notes
- (c) 1998 American Institute of Physics.