Search for 100 TeV γ-ray emission from the galactic disk

M. Aglietta, B. Alessandro, Francesco Arneodo, L. Bergamasco, A. Campos Fauth, C. Castagnoli, A. Castellina, C. Cattadori, A. Chiavassa, G. Cini, B. D'Ettorre Piazzoli, W. Fulgione, P. Galeotti, P. L. Ghia, G. Mannocchi, C. Morello, G. Navarra, L. Riccati, O. Saavedra, G. C. Trinchero & 2 others P. Vallania, S. Vernetto

    Research output: Contribution to journalArticle

    Abstract

    A search for UHE (≥ 100 TeV) diffuse γ-ray emission from the Galactic disk has been carried out, through the excess in the cosmic-ray counting rate, by means of the EAS-TOP extensive air shower array at the Gran Sasso Laboratories. Measurements are performed from angular scales |b| ≈ 2° (as in 100 MeV satellite experiments, and as expected from CR interactions with the ISM) to |b| ≈ 10°. The obtained upper limits (90% c.l.) to the γ-ray excess over the cosmic-ray flux from the Galactic disk region are Iγ/Ip < 0.2% for |b| < 2°, Iγ/Ip < 0.04% for |b| < 5°, and Iγ/Ip < 0.02% for |b| < 12° at E0 > 130 TeV, corresponding to upper limits to the flux of Iγ < 3.2 × 10-13 cm-2 s-1 rad-1, Iγ < 2.8 × 10-13 cm-2 s-1 rad-1, and Iγ < 4 × 10-13 cm-2 s-1 rad-1.

    Original languageEnglish (US)
    Pages (from-to)148-152
    Number of pages5
    JournalAstrophysical Journal
    Volume397
    Issue number1
    StatePublished - Jan 1 1992

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    cosmic ray
    cosmic rays
    rays
    cosmic ray showers
    counting
    air
    experiment
    interactions
    rate
    laboratory

    Keywords

    • Cosmic rays
    • Gamma rays: Observations

    ASJC Scopus subject areas

    • Space and Planetary Science
    • Nuclear and High Energy Physics

    Cite this

    Aglietta, M., Alessandro, B., Arneodo, F., Bergamasco, L., Campos Fauth, A., Castagnoli, C., ... Vernetto, S. (1992). Search for 100 TeV γ-ray emission from the galactic disk. Astrophysical Journal, 397(1), 148-152.

    Search for 100 TeV γ-ray emission from the galactic disk. / Aglietta, M.; Alessandro, B.; Arneodo, Francesco; Bergamasco, L.; Campos Fauth, A.; Castagnoli, C.; Castellina, A.; Cattadori, C.; Chiavassa, A.; Cini, G.; D'Ettorre Piazzoli, B.; Fulgione, W.; Galeotti, P.; Ghia, P. L.; Mannocchi, G.; Morello, C.; Navarra, G.; Riccati, L.; Saavedra, O.; Trinchero, G. C.; Vallania, P.; Vernetto, S.

    In: Astrophysical Journal, Vol. 397, No. 1, 01.01.1992, p. 148-152.

    Research output: Contribution to journalArticle

    Aglietta, M, Alessandro, B, Arneodo, F, Bergamasco, L, Campos Fauth, A, Castagnoli, C, Castellina, A, Cattadori, C, Chiavassa, A, Cini, G, D'Ettorre Piazzoli, B, Fulgione, W, Galeotti, P, Ghia, PL, Mannocchi, G, Morello, C, Navarra, G, Riccati, L, Saavedra, O, Trinchero, GC, Vallania, P & Vernetto, S 1992, 'Search for 100 TeV γ-ray emission from the galactic disk', Astrophysical Journal, vol. 397, no. 1, pp. 148-152.
    Aglietta M, Alessandro B, Arneodo F, Bergamasco L, Campos Fauth A, Castagnoli C et al. Search for 100 TeV γ-ray emission from the galactic disk. Astrophysical Journal. 1992 Jan 1;397(1):148-152.
    Aglietta, M. ; Alessandro, B. ; Arneodo, Francesco ; Bergamasco, L. ; Campos Fauth, A. ; Castagnoli, C. ; Castellina, A. ; Cattadori, C. ; Chiavassa, A. ; Cini, G. ; D'Ettorre Piazzoli, B. ; Fulgione, W. ; Galeotti, P. ; Ghia, P. L. ; Mannocchi, G. ; Morello, C. ; Navarra, G. ; Riccati, L. ; Saavedra, O. ; Trinchero, G. C. ; Vallania, P. ; Vernetto, S. / Search for 100 TeV γ-ray emission from the galactic disk. In: Astrophysical Journal. 1992 ; Vol. 397, No. 1. pp. 148-152.
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    abstract = "A search for UHE (≥ 100 TeV) diffuse γ-ray emission from the Galactic disk has been carried out, through the excess in the cosmic-ray counting rate, by means of the EAS-TOP extensive air shower array at the Gran Sasso Laboratories. Measurements are performed from angular scales |b| ≈ 2° (as in 100 MeV satellite experiments, and as expected from CR interactions with the ISM) to |b| ≈ 10°. The obtained upper limits (90{\%} c.l.) to the γ-ray excess over the cosmic-ray flux from the Galactic disk region are Iγ/Ip < 0.2{\%} for |b| < 2°, Iγ/Ip < 0.04{\%} for |b| < 5°, and Iγ/Ip < 0.02{\%} for |b| < 12° at E0 > 130 TeV, corresponding to upper limits to the flux of Iγ < 3.2 × 10-13 cm-2 s-1 rad-1, Iγ < 2.8 × 10-13 cm-2 s-1 rad-1, and Iγ < 4 × 10-13 cm-2 s-1 rad-1.",
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    AU - Alessandro, B.

    AU - Arneodo, Francesco

    AU - Bergamasco, L.

    AU - Campos Fauth, A.

    AU - Castagnoli, C.

    AU - Castellina, A.

    AU - Cattadori, C.

    AU - Chiavassa, A.

    AU - Cini, G.

    AU - D'Ettorre Piazzoli, B.

    AU - Fulgione, W.

    AU - Galeotti, P.

    AU - Ghia, P. L.

    AU - Mannocchi, G.

    AU - Morello, C.

    AU - Navarra, G.

    AU - Riccati, L.

    AU - Saavedra, O.

    AU - Trinchero, G. C.

    AU - Vallania, P.

    AU - Vernetto, S.

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