Lunar gamma-ray emission observed by FERMI
N.Giglietto (for the FERMI-LAT Collaboration)
TL;DR
FERMI-LAT's high-sensitivity gamma-ray survey detected lunar gamma-ray emission caused by cosmic ray interactions, providing new insights and improved measurements over previous observations by EGRET.
Contribution
This paper presents the first detailed gamma-ray images of the Moon using FERMI-LAT data, enhancing understanding of lunar gamma-ray emission.
Findings
Detection of lunar gamma-ray emission with high significance
Comparison of flux measurements with earlier EGRET data
First gamma-ray images of the Moon from FERMI-LAT
Abstract
FERMI-LAT is performing an all-sky gamma-ray survey from 30 MeV to 300 GeV with unprecedented sensitivity and angular resolution. FERMI has detected high-energy gamma rays from the Moon produced by interactions of cosmic rays with the lunar surface. This radiation was previously observed by EGRET on CGRO with significantly lower statistical significance. We present the lunar analysis for the first six months of the Mission and showing images of the lunar gamma-ray emission. We also compare the flux measurements with models the earlier EGRET measurements.
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Taxonomy
TopicsAstrophysics and Cosmic Phenomena · Dark Matter and Cosmic Phenomena · Neutrino Physics Research