Empirical Conversions of Broad-Band Optical and Infrared Magnitudes to
  Monochromatic Continuum Luminosities for Active Galactic Nuclei
  We use public data for 105783 quasars from The Sloan Digital Sky Survey
(SDSS) Data Release 7 (DR7) that include spectral monochromatic luminosities at
5100\AA, 3000\AA, and 1350\AA, and the corresponding observed broad-band ugriz,
VRI (converted), JHK and WISE magnitudes, and derive
broad-band-to-monochromatic luminosity ratios independent of a cosmological
model. The ratios span the redshift range of z=0.1-4.9 and may serve as a proxy
for measuring the bolometric luminosity, broad line region (BLR) radii and/or
black hole masses, whenever flux-calibrated spectra are unavailable or the
existing spectra have low signal-to-noise ratios. They are provided both in
tabular and parametric form.
