Breaking the rules at <i>z</i> โ 0.45: The rebel case of RBS 1055
Breaking the rules at <i>z</i> โ 0.45: The rebel case of RBS 1055
We report on a long (250 ks) NuSTAR observation of the bright quasar RBS 1055 performed in March 2021, and archival XMM-Newton pointings (185 ks) taken in July 2014. An optical spectrum of the source taken with the Double Spectrograph at the Palomar Observatory, quasi-simultaneous with the NuSTAR observations, is โฆ