openalexThe Astrophysical Journal2026-07-24
Exploring the Nature of Galactic Unassociated Sources Detected by the Fermi-LAT
F. Acero, A. Acharyya, A. Adelfio, M. Ajello, E. Aviano, L. Baldini, et al.
Abstract We investigate the nature of the unassociated sources detected by the Fermi-LAT close (∣ b ∣ < 10°) to the Galactic plane, representing 16% of all sources in the 4FGL-DR4 catalog. The bulk of these sources (referred to as soft Galactic unassociated sources, SGUs) exhi…