Fermipy: An open-source Python package for analysis of Fermi-LAT Data

TL;DR

Fermipy is an open-source Python package that simplifies the analysis of Fermi-LAT gamma-ray data, enabling efficient extraction of spectral, temporal, and spatial information with reproducible workflows.

Contribution

It introduces a high-level, user-friendly Python framework built on existing tools for comprehensive Fermi-LAT data analysis, enhancing accessibility and reproducibility.

Findings

Provides tools for spectral and lightcurve analysis

Enables detection of new gamma-ray sources

Supports fitting source position and extension

Abstract

Fermipy is an open-source python framework that facilitates analysis of data collected by the Fermi Large Area Telescope (LAT). Fermipy is built on the Fermi Science Tools, the publicly available software suite provided by NASA for the LAT mission. Fermipy provides a high-level interface for analyzing LAT data in a simple and reproducible way. The current feature set includes methods for extracting spectral energy distributions and lightcurves, generating test statistic maps, finding new source candidates, and fitting source position and extension. Fermipy leverages functionality from other scientific python packages including NumPy, SciPy, Matplotlib, and Astropy and is organized as a community-developed package following an open-source development model. We review the current functionality of Fermipy and plans for future development.