Search for gamma-ray bursts at photon energies e ≥ 10 GeV and e ≥ 80 TeV

M. Aglietta, B. Alessandro, P. Antonioli, Francesco Arneodo, L. Bergamasco, M. Bertaina, A. Castellina, C. Castagnoli, A. Chiavassa, G. Cini Castagnoli, B. D.Ettorre Piazzoli, G. Di Sciascio, W. Fulgione, P. Galeotti, P. L. Ghia, R. Granella, M. Iacovacci, G. Mannocchi, C. Melagrana, N. Mengotti Silva & 8 others C. Morello, G. Navarra, L. Riccati, O. Saavedra, G. C. Trinchero, P. Vallania, S. Vernetto, C. Vigorito

    Research output: Contribution to journalArticle

    Abstract

    The EAS-TOP extensive air shower array has been operating since 1992 in the search for gamma-ray bursts at primary energies E1 ≥ 10 GeV and E2 ≥ 80 TeV. The study is performed by searching for short transients in the cosmic-ray intensity in the single particle (E1) and extensive air shower (E2) counting rates at mountain altitude (2005 m above sea level). We discuss the method and the results obtained both in sky survey and in correlation with BATSE events. In both energy ranges, the observed fluctuations in the event rate obtained in the sky survey during ∼800 days of live time are compatible with the statistical fluctuations of the cosmic-ray background. A single candidate of time duration Δt ∼ 2 s and energy fluence F(10 < E < 100 GeV) = 1.7 × 10-4/ (cos θ)10.5 ergs cm-2 (where θ is the unknown zenith angle) has been observed on 1992 July 15 at 13:22:26 UT in the energy range E1 ≥ 10 GeV with significance 10.6 and 20.1 σ in two measurement channels. In the analysis made in correlation with ∼50 events detected by BATSE, no burst candidate was found in time coincidence or in the 2 hr interval around the BATSE detection time. The following ranges of upper limits Fmax to the energy fluence in the time interval Δt90 in which BATSE detected 90% of the counts are obtained: Fmax = 2.3 × 10-5-7.4 × 10-3 ergs cm-2 (10 < E < 100 GeV) Fmax = 1.6 × 10-6-3.3 × 10-5 ergs cm-2 (100 < E < 1000 TeV).

    Original languageEnglish (US)
    Pages (from-to)305-310
    Number of pages6
    JournalAstrophysical Journal
    Volume469
    Issue number1 PART I
    DOIs
    StatePublished - Jan 1 1996

    Fingerprint

    gamma ray bursts
    erg
    photons
    energy
    cosmic ray
    cosmic ray showers
    cosmic rays
    fluence
    intervals
    air
    zenith angle
    zenith
    sea level
    mountains
    bursts
    counting
    mountain
    rate

    Keywords

    • Gamma rays: bursts

    ASJC Scopus subject areas

    • Astronomy and Astrophysics
    • Space and Planetary Science

    Cite this

    Aglietta, M., Alessandro, B., Antonioli, P., Arneodo, F., Bergamasco, L., Bertaina, M., ... Vigorito, C. (1996). Search for gamma-ray bursts at photon energies e ≥ 10 GeV and e ≥ 80 TeV. Astrophysical Journal, 469(1 PART I), 305-310. https://doi.org/10.1086/177779

    Search for gamma-ray bursts at photon energies e ≥ 10 GeV and e ≥ 80 TeV. / Aglietta, M.; Alessandro, B.; Antonioli, P.; Arneodo, Francesco; Bergamasco, L.; Bertaina, M.; Castellina, A.; Castagnoli, C.; Chiavassa, A.; Castagnoli, G. Cini; Piazzoli, B. D.Ettorre; Di Sciascio, G.; Fulgione, W.; Galeotti, P.; Ghia, P. L.; Granella, R.; Iacovacci, M.; Mannocchi, G.; Melagrana, C.; Silva, N. Mengotti; Morello, C.; Navarra, G.; Riccati, L.; Saavedra, O.; Trinchero, G. C.; Vallania, P.; Vernetto, S.; Vigorito, C.

    In: Astrophysical Journal, Vol. 469, No. 1 PART I, 01.01.1996, p. 305-310.

    Research output: Contribution to journalArticle

    Aglietta, M, Alessandro, B, Antonioli, P, Arneodo, F, Bergamasco, L, Bertaina, M, Castellina, A, Castagnoli, C, Chiavassa, A, Castagnoli, GC, Piazzoli, BDE, Di Sciascio, G, Fulgione, W, Galeotti, P, Ghia, PL, Granella, R, Iacovacci, M, Mannocchi, G, Melagrana, C, Silva, NM, Morello, C, Navarra, G, Riccati, L, Saavedra, O, Trinchero, GC, Vallania, P, Vernetto, S & Vigorito, C 1996, 'Search for gamma-ray bursts at photon energies e ≥ 10 GeV and e ≥ 80 TeV', Astrophysical Journal, vol. 469, no. 1 PART I, pp. 305-310. https://doi.org/10.1086/177779
    Aglietta M, Alessandro B, Antonioli P, Arneodo F, Bergamasco L, Bertaina M et al. Search for gamma-ray bursts at photon energies e ≥ 10 GeV and e ≥ 80 TeV. Astrophysical Journal. 1996 Jan 1;469(1 PART I):305-310. https://doi.org/10.1086/177779
    Aglietta, M. ; Alessandro, B. ; Antonioli, P. ; Arneodo, Francesco ; Bergamasco, L. ; Bertaina, M. ; Castellina, A. ; Castagnoli, C. ; Chiavassa, A. ; Castagnoli, G. Cini ; Piazzoli, B. D.Ettorre ; Di Sciascio, G. ; Fulgione, W. ; Galeotti, P. ; Ghia, P. L. ; Granella, R. ; Iacovacci, M. ; Mannocchi, G. ; Melagrana, C. ; Silva, N. Mengotti ; Morello, C. ; Navarra, G. ; Riccati, L. ; Saavedra, O. ; Trinchero, G. C. ; Vallania, P. ; Vernetto, S. ; Vigorito, C. / Search for gamma-ray bursts at photon energies e ≥ 10 GeV and e ≥ 80 TeV. In: Astrophysical Journal. 1996 ; Vol. 469, No. 1 PART I. pp. 305-310.
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    abstract = "The EAS-TOP extensive air shower array has been operating since 1992 in the search for gamma-ray bursts at primary energies E1 ≥ 10 GeV and E2 ≥ 80 TeV. The study is performed by searching for short transients in the cosmic-ray intensity in the single particle (E1) and extensive air shower (E2) counting rates at mountain altitude (2005 m above sea level). We discuss the method and the results obtained both in sky survey and in correlation with BATSE events. In both energy ranges, the observed fluctuations in the event rate obtained in the sky survey during ∼800 days of live time are compatible with the statistical fluctuations of the cosmic-ray background. A single candidate of time duration Δt ∼ 2 s and energy fluence F(10 < E < 100 GeV) = 1.7 × 10-4/ (cos θ)10.5 ergs cm-2 (where θ is the unknown zenith angle) has been observed on 1992 July 15 at 13:22:26 UT in the energy range E1 ≥ 10 GeV with significance 10.6 and 20.1 σ in two measurement channels. In the analysis made in correlation with ∼50 events detected by BATSE, no burst candidate was found in time coincidence or in the 2 hr interval around the BATSE detection time. The following ranges of upper limits Fmax to the energy fluence in the time interval Δt90 in which BATSE detected 90{\%} of the counts are obtained: Fmax = 2.3 × 10-5-7.4 × 10-3 ergs cm-2 (10 < E < 100 GeV) Fmax = 1.6 × 10-6-3.3 × 10-5 ergs cm-2 (100 < E < 1000 TeV).",
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    AU - Alessandro, B.

    AU - Antonioli, P.

    AU - Arneodo, Francesco

    AU - Bergamasco, L.

    AU - Bertaina, M.

    AU - Castellina, A.

    AU - Castagnoli, C.

    AU - Chiavassa, A.

    AU - Castagnoli, G. Cini

    AU - Piazzoli, B. D.Ettorre

    AU - Di Sciascio, G.

    AU - Fulgione, W.

    AU - Galeotti, P.

    AU - Ghia, P. L.

    AU - Granella, R.

    AU - Iacovacci, M.

    AU - Mannocchi, G.

    AU - Melagrana, C.

    AU - Silva, N. Mengotti

    AU - Morello, C.

    AU - Navarra, G.

    AU - Riccati, L.

    AU - Saavedra, O.

    AU - Trinchero, G. C.

    AU - Vallania, P.

    AU - Vernetto, S.

    AU - Vigorito, C.

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