Search for gamma-ray point sources with energy greater than 40 GeV along the Galactic plane by airborne experiment

Details Search for gamma-ray point sources with energy greater than 40 GeV along the Galactic plane by airborne experiment Search for gamma-ray point sources with energy greater than 40 GeV along the Galactic plane by airborne experiment

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phrvl..64.2603e&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 64, May 28, 1990, p. 2603-2606.

Astronomy and Astrophysics

Astronomy

4

Aircraft Instruments, Cosmic Ray Showers, Gamma Ray Astronomy, Milky Way Galaxy, Point Sources, Computerized Simulation, Data Reduction, Monte Carlo Method

Scientific paper

Atmospheric gamma-ray-initiated shower cascades were observed by a detector with an angular resolution of approximately 1 deg loaded on a cargo aircraft. The gamma-ray threshold was estimated to be 40 GeV. Nine gamma-ray point-source candidates were observed. Of these, eight sources were distributed along the Galactic plane. The strongest source candidate (4.4 sigma peak) was located at (l, b) = (39 deg, 2 deg). The integral intensities of these sources were typically several times 10 to the -8th/sq cm sec at 40 GeV.

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