Point Source Detection and Flux Determination with PGWave

Understand

One of the largest uncertainties in the Point Source (PS) studies, at Fermi-LAT energies, is the uncertainty in the diffuse background.

• In general there are two approaches for PS analysis: background-dependent methods, that include modeling of the diffuse background, and background-independent methods.
• In this work we study PGWave, which is one of the background-independent methods, based on wavelet filtering to find significant clusters of gamma rays.
• PGWave is already used in the Fermi-LAT catalog pipeline for finding candidate sources.