Hard X-Ray View of HCG 16 (Arp 318)
Hard X-Ray View of HCG 16 (Arp 318)
Abstract We report the hard X-ray (3–50 keV) view of the compact group HCG 16 (Arp 318) observed with the Nuclear Spectroscopic Telescope Array ( NuSTAR ). NGC 838 and NGC 839 are undetected at energies above 8 keV, showing no evidence of heavily obscured active galactic nuclei (AGNs). This …