Virial black hole mass estimates are presented for 12 698 quasars in the redshift interval
0.1≤ z≤ 2.1, based on modelling of spectra from the Sloan Digital Sky Survey (SDSS) first …

Recent studies of black holes in the nuclei of both active and normal galaxies have yielded
relationships that permit a physical interpretation of the principal components of the spectra …

We present the final results from our deep Hubble Space Telescope (HST) imaging study of
the host galaxies of radio-quiet quasars (RQQs), radio-loud quasars (RLQs) and radio …

Bolometric corrections are used in quasar studies to quantify total energy output based on a
measurement of a monochromatic luminosity. First, we enumerate and discuss the practical …

In the present-day universe, supermassive black hole masses (Script M BH) appear to be
strongly correlated with their galaxy's bulge luminosity, among other properties. In this study …

An R and K′ atlas of the IRAS 1 Jy sample of 118 ultraluminous infrared galaxies (ULIGs)
was presented in a companion paper (our Paper I). The present paper discusses the results …

We have produced the next generation of quasar spectral energy distributions (SEDs),
essentially updating the work of Elvis et al. by using high-quality data obtained with several …

The mass estimator used to calculate black hole (BH) masses in broad-line active galactic
nuclei (AGNs) relies on a virial coefficient (the" f factor") that is determined by comparing …

ABSTRACT We use Hubble Space Telescope/Advanced Camera for Surveys images and a
photometric catalog of the Cosmic Evolution Survey (COSMOS) field to analyze …

We report the results from a deep Hubble Space Telescope (HST) NICMOS H-band imaging
survey of 28 z< 0.3 QSOs from the Palomar-Green (PG) sample. This program is part of …