A method to unfold the energy spectra of point like sources from the Fermi-LAT data

Abstract

The Large Area Telescope (LAT) onboard the Fermi satellite is exploring the gamma-ray sky in the energy range above 20MeV. We have developed a method to reconstruct the energy spectra of the gamma rays detected by the Fermi LAT instrument based on a Bayesian unfolding approach. The method has been successfully applied to simulated data sets to reconstruct the energy spectra of both steady and pulsating point sources. The basic ideas and the procedures implemented to evaluate the energy spectra of gamma ray sources will be illustrated, and the results of the application of the method to a typical test case will be shown.

4 pages, 4 figures, Contribution to the 31st ICRC, Lodz, Poland, July 2009

References in corpus (1)

• The Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission

Cited by in corpus (4)

• Fermi Large Area Telescope Observations of the Crab Pulsar and Nebula
• Spectral Analysis of the Crab Pulsar and Nebula with the Fermi Large Area Telescope
• Constraints on dark matter scattering with long lived mediators from observations of the Sun with the Fermi Large Area Telescope
• Unfolding spectral analysis of the Fermi-LAT data