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. TrincheroP. 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

Fingerprint

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

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.
@article{7678d31c6e3f4ffaa85110738ad4e79e,
title = "Search for 100 TeV γ-ray emission from the galactic disk",
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.",
keywords = "Cosmic rays, Gamma rays: Observations",
author = "M. Aglietta and B. Alessandro and Francesco Arneodo and L. Bergamasco and {Campos Fauth}, A. and C. Castagnoli and A. Castellina and C. Cattadori and A. Chiavassa and G. Cini and {D'Ettorre Piazzoli}, B. and W. Fulgione and P. Galeotti and Ghia, {P. L.} and G. Mannocchi and C. Morello and G. Navarra and L. Riccati and O. Saavedra and Trinchero, {G. C.} and P. Vallania and S. Vernetto",
year = "1992",
month = "1",
day = "1",
language = "English (US)",
volume = "397",
pages = "148--152",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "1",

}

TY - JOUR

T1 - Search for 100 TeV γ-ray emission from the galactic disk

AU - Aglietta, M.

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.

PY - 1992/1/1

Y1 - 1992/1/1

N2 - 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.

AB - 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.

KW - Cosmic rays

KW - Gamma rays: Observations

UR - http://www.scopus.com/inward/record.url?scp=0001023649&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001023649&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0001023649

VL - 397

SP - 148

EP - 152

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 1

ER -