Siddhant Manna

Search for Gamma-ray emission from Abell 119 galaxy cluster using INTEGRAL/ISGRI, COMPTEL, and DAMPE data

We present a comprehensive search for non-thermal high-energy γ -ray emission from the nearby merging galaxy cluster Abell~119 ( z = 0.044 ) using archival observations spanning over seven decades in photon energy. Our analysis combines hard X-ray data from INTEGRAL/ISGRI (30–100...