Search for gamma ray bursts at Chacaltaya

Castellina, A. and Ghia, P.L. and Kakimoto, F. and Kaneko, T. and Morello, C. and Navarra, G. and Nishi, K. and Saavedra, O. and Trinchero, G. and Urzagasti, D. and Vallania, P. and Velarde, A. and Vernetto, S. and Yoshii, H. (2001) Search for gamma ray bursts at Chacaltaya. Il nuovo cimento C, 24 C (4\5). pp. 631-638. ISSN 1826-9885

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A search for gamma-ray bursts in the GeV–TeV energy range has been performed by INCA, an air shower array working at 5200 m of altitude at the Chacaltaya Laboratory (Bolivia). The altitude of the detector and the use of the “single-particle technique” allows to lower the energy threshold up to few GeVs. No significant signals are observed during the occurrences of 125 GRBs detected by BATSE, and the obtained upper limits on the energy fluence in the interval 1–103 (1–102) GeV, range from 3.2 (8.6) ×10 −5 to 2.6 (7.0) ×10−2 erg cm −2 depending on the zenith angle of the events. These limits, thanks to the extreme altitude of INCA, are the lowest ever obtained in the sub-TeV energy region by a ground-based experiment.

Item Type: Article
Additional Information: Paper presented at the Chacaltaya Meeting on Cosmic Ray Physics, La Paz, Bolivia, July 23-27, 2000.
Uncontrolled Keywords: Gamma-ray sources; gamma-ray bursts ; Conference proceedings
Subjects: 500 Scienze naturali e Matematica > 550 Scienze della Terra > 551 Geologia, Idrologia, Meteorologia > 551.5 Meteorologia (Classificare qui l'atmosfera) (Classificare la previsione e le previsioni di specifici fenomeni meteorologici in 551.64; classificare la Micrometeorologia in 551.66) > 551.52 Termodinamica, interazioni atmosferiche con la superficie terrestre, temperature, radiazioni > 551.527 Radiazioni (per fenomeni ottici, vedi 551.565) > 551.5276 Radiazioni cosmiche (Include il rumore cosmico) (Classificare qui i raggi cosmici)
Depositing User: Marina Spanti
Date Deposited: 11 Mar 2020 11:09
Last Modified: 11 Mar 2020 11:09

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