Speaker
Description
Unidentified gamma-ray sources in the Fermi-LAT catalog represent a key target for astroparticle studies, as they may host either conventional compact objects or more exotic scenarios such as dark matter (DM) subhalos. We present a detailed gamma-ray and multiwavelength investigation of 4FGL J2112.5−3043, a high-significance LAT source with no firmly established counterpart to date.
Using Fermi-LAT data, we perform a comprehensive spectral and spatial analysis. The emission is consistent with a point-like morphology, exhibits no significant flux variability, and is best described by a sub-exponential cutoff power-law spectrum. We complement the gamma-ray characterization with a dedicated multiwavelength search aimed at constraining possible astrophysical counterparts.
We discuss the results in the context of both a pulsar interpretation and DM annihilation in a nearby Galactic subhalo. While no definitive identification can be reached, the combined spectral and multiwavelength analysis provides valuable constraints on both scenarios, highlighting 4FGL J2112.5−3043 as a compelling target for future observations and astroparticle and multimessenger investigations.