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TweedleDEE is a Tool for Determining background Emission Empirically.

Full description at arXiv.org/2408.04611

TweedleDEE creates an empirical background model for the diffuse gamma-ray emission in a 1 degree region of the sky using publicly available gamma-ray data from the Fermi-LAT. The background distribution is obtained in the form of a probability mass function (PMF), which is constructed using data off-axis from any user-specified region of interest (ROI). This background model can be used to perform a purely data-driven search for anomalous localized sources of gamma-ray emission, including new physics.

TweedleDEE produces a background PMF file for the ROI as well as a file containing the photon data from the ROI itself, both readable by the Model Agnostic Dark Halo Analysis Tool (MADHAT).

Topics:

1. Installing TweedleDEE Dependencies

2. Fermi-LAT Data Queries

3. Running TweedleDEE

4. Output Formatting

If you use TweedleDEE please cite: Hoskinson, Kumar & Sandick (2024)