Speaker
Description
Previous gamma-ray blazar studies revealed that the jet production efficiency is about 1. Here, we studied the disk-jet connection in active supermassive black holes by investigating the properties of optical and radio emissions of radio-loud quasars. We found that the jet powers correlate with the bolometric disk luminosities as log P$_{jet}$= 0.96 log L$_{disk}$+ 0.79. This suggests the jet production efficiency of about 0.011, implying low black hole spin parameters and/or low magnetic flux for radio-loud quasars. This result contradicts previous jet power studies based on gamma-ray blazars. We will discuss the cause of this discrepancy and discuss possible uncertainties in jet power evaluation. This work is published as Inoue et al. 2017, ApJ, 840, 12.
