Speaker
Description
Understanding intermediate-mass black holes (IMBHs) can provide crucial insights into active galactic nuclei (AGN) feedback, black hole-galaxy co-evolution, and the origins of supermassive black holes. One promising method to study IMBHs is by searching for their high-energy emission in nearby dwarf galaxies. Using 13 years of Fermi LAT observations, we conducted a stacking analysis to detect potential gamma-ray emissions from 135 dwarf galaxies with AGN activity signatures across different electromagnetic bands. We find slight evidence of gamma-ray emission from dwarf AGNs with a 2σ significance. Further examination of subsamples, categorized by their AGN signatures, yields up to 3σ significance. These findings hint at a potential gamma-ray signal from dwarf galaxies with active IMBHs.
