The ${\sigma }_{\mathrm{H}\beta }$-based dimensionless accretion rate and its connection with the corona for AGN

Y. Q. Chen, Y. S. Liu, W. H. Bian

With respect to the $\mathrm{H}\beta$ full width at half-maximum ($\mathrm{FWH}{\mathrm{M}}_{\mathrm{H}\beta }$), the broad $\mathrm{H}\beta$ line dispersion (${\sigma }_{\mathrm{H}\beta }$) was preferred as a velocity tracer to calculate the sin…