Black hole mass, jet, and accretion disk connection: An analysis of radio‐loud and radio‐quiet quasars

Abstract

Surveys have shown radio-loud (RL) quasars constitute 10-15% of the total quasar population. However, it is unknown if the radio-loud fraction (RL quasars/Total quasars) remains consistent among different parameter spaces. This study shows that radio-loud fraction increases for increasing full width half maximum (FWHM) velocity of the H and MgII broad emission line. Our data have been obtained from Shen, Y., Richards, G. T., Strauss, M. A. et al., ApJS, 194(2), 45, 2011 catalogue. To investigate the reason, in this preliminary study we analyze various properties like bolometric luminosity, optical continuum luminosity, black hole (BH) mass, and accretion rate of RL quasars and RQ quasars sample which have FWHM greater than 15,000 km s −1 (High broad line). From the distributions, we can conclude for all the properties in high broad line, RL quasars are having higher values than RQ quasars. We have predicted RL quasars are intrinsically brighter than RQ quasars and also predicted BH mass-jet connection and accretion disk-jet connection from our results but to conclude anything more analysis is needed.

Radio dichotomy in quasars with H β FWHM greater than 15 000 km s−1

“…It clearly exhibits an increasing trend of RLF with the RLF reaching ∼57% in the highest FWHM bin. We note that we see a similar trend when we use the MgII sample (Chakraborty et al 2021). Additionally we found the correlation coefficient (Figure 1) to be 0.97 with a p-value 0.0002, implying only a 0.02% chance of finding such high value of the correlation coefficient by chance if the data were not correlated.…”