Models of Continuum of Weak Emission-Line Quasars

Marcin Marculewicz, Marek Nikolajuk

We study optical-ultraviolet spectral energy distribution (SED) of 10 weak emission-line quasars (WLQs) at redshifts z = 0.19 and 1.43 < z < 3.48. The theoretical models of their accretion disc continua are created based on the Novikov-Thorne equations. It allows us to estimate masses of their supermassive black holes, and accretion rates. We determine the virial factor for WLQs and note its anti-correlation with the full width at half maximum (FWHM) of Hβ emission-line (f∝FWHM^α , α = −1.34 ± 0.37). In our opinion, WLQs are normal quasars visible in a reactivation stage.

Proceedings of the Polish Astronomical Society, vol. 10, 243-247 (2020)

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