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Survey of the Galactic Plane with Milagro and the Discovery of MGRO J1908+06 and MGRO J2031+41

Authors: P. Hüntemeyer; C. P. Lansdell;

Survey of the Galactic Plane with Milagro and the Discovery of MGRO J1908+06 and MGRO J2031+41

Abstract

The Milagro Gamma-Ray Observatory is a water Cherenkov detector that operates continuously, detecting extensive air showers from the overhead sky. The large field of view and long observation time of Milagro is ideal for surveying large regions of the Northern Hemisphere sky and for detecting gamma rays at the highest energies. The emission from the entire inner galaxy as visible from the Northern Hemisphere - Galactic latitude |b| < 2 deg. and Galactic longitude l (set-membership sign) [30 deg., 110 deg.] - is detected at a median energy of 20 TeV with a significance of 10 standard deviations above the isotropic background. The flux of this region exceeds that predicted from cosmic ray interactions with matter and radiation. However, discrete sources will contribute to this flux and 7 locations within the inner Galaxy region with latitudes |b| < 5 deg. are more than 4.5 standard deviations above the isotropic background. Given the size of the Galaxy selected and the search method, 0.3 locations are expected above 4.5 standard deviations by chance, if the background is isotropic. The flux of the Galactic plane, of these 7 excess locations, and of a source at the location of Geminga will be reported.

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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