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Extending The Calibration Of C Iv-Based Single-Epoch Black Hole Mass Estimators For Active Galactic Nuclei, Daeseong Park, Aaron J. Barth, Jong-Hak Woo, Matthew A. Malkan, Tommaso Treu, Vardha Nicola Bennert, Roberto J. Assef, Anna Pancoast
Extending The Calibration Of C Iv-Based Single-Epoch Black Hole Mass Estimators For Active Galactic Nuclei, Daeseong Park, Aaron J. Barth, Jong-Hak Woo, Matthew A. Malkan, Tommaso Treu, Vardha Nicola Bennert, Roberto J. Assef, Anna Pancoast
Physics
We provide an updated calibration of C iv broad emission line–based single-epoch (SE) black hole (BH) mass estimators for active galactic nuclei (AGNs) using new data for six reverberation-mapped AGNs at redshift with BH masses (bolometric luminosities) in the range ( erg s−1). New rest-frame UV-to-optical spectra covering 1150–5700 Å for the six AGNs were obtained with the Hubble Space Telescope (HST). Multicomponent spectral decompositions of the HST spectra were used to measure SE emission-line widths for the C iv, Mg ii, and Hβ lines, as well as continuum luminosities in the spectral region around each line. …