178 citations · 449 across the 8 of their papers we have counts for
8 papers
CIRCE: The Canarias InfraRed Camera Experiment for the Gran Telescopio Canarias
Stephen S. Eikenberry, Miguel Charcos, Michelle L. Edwards +51
The Canarias InfraRed Camera Experiment (CIRCE) is a near-infrared (1-2.5 micron) imager, polarimeter and low-resolution spectrograph operating as a visitor instrument for the Gran…
Quasar Metal Abundances and Host Galaxy Evolution
Fred Hamann, Craig Warner, Matthias Dietrich +1
Quasars signal a unique phase of galaxy evolution -- when massive spheroids are rapidly being assembled, forming stars and growing their central super-massive black holes. Measurem…
Active Galactic Nuclei Emission-Line Properties Versus Eddington Ratio
Craig Warner, Fred Hamann, Matthias Dietrich
We analyze UV spectra for a large sample of 578 Type 1 AGNs and derive Eddington ratios, L/Ledd, from the bolometric luminosities and emission line widths for each object in the sa…
A Relation Between Supermassive Black Hole Mass and Quasar Metallicity?
Craig Warner, Fred Hamann, Matthias Dietrich
We analyze spectra for a large sample of 578 Active Galactic Nuclei to examine the relationships between broad emission line properties and central supermassive black hole (SMBH) m…
Quasar Elemental Abundances and Host Galaxy Evolution
F. Hamann, M. Dietrich, B. Sabra +1
High redshift quasars mark the locations where massive galaxies are rapidly being assembled and forming stars. There is growing evidence that quasar environments are metal-rich out…
Chemical Abundances in Broad Emission Line Regions: The "Nitrogen-Loud" QSO 0353-383
J. A. Baldwin, F. Hamann, K. T. Korista +3
The intensity of the strong N V 1240 line relative to C IV 1549 or to He II 1640 has been proposed as an indicator of the metallicity of QSO broad emission line regions, allowing a…