PSF Calibration of DAMPE for gamma-ray Observations

Abstract

The DArk Matter Particle Explorer (DAMPE) is dedicated to exploring critical scientific domains including the indirect detection of dark matter, cosmic ray physics, and gamma ray astronomy. This study introduces a novel method for calibrating the Point Spread Function (PSF) of DAMPE, specifically designed to enhance the accuracy of gamma-ray observations. By leveraging data from regions near pulsars and bright Active Galactic Nuclei (AGNs), we have refined the PSF calibration process, resulting in an improved angular resolution that closely matches our observational data. This advancement significantly boosts the precision of gamma-ray detection by DAMPE, thereby contributing to its mission objectives in dark matter detection and gamma ray astronomy.

7 pages, 12 figures and 1 table. Accepted for publication in Astroparticle Physics

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• The DArk Matter Particle Explorer mission
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• Measurement of the cosmic p+He energy spectrum from 50 GeV to 0.5 PeV with the DAMPE space mission
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• Search for relativistic fractionally charged particles in space
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Cited by in corpus (2)

• Observations of the Fermi bubbles and the Galactic center excess with the DArk Matter Particle Explorer
• The calibrations of DAMPE $\gamma$-ray effective area