activity
20092019
most citedMetallicity and Far-Infrared Luminosity of High Redshift Quasars

23 citations · 73 across the 6 of their papers we have counts for

collaborators

6 papers

astro-ph.GA2019★ 8 cited

Nature and Origins of Rich Complexes of C IV Associated Absorption Lines

Chen Chen, Fred Hamann, Leah Simon +1

Rich complexes of associated absorption lines (AALs) in quasar spectra provide unique information about gaseous infall, outflows, and feedback processes in quasar environments. We…

astro-ph.GA2018★ 20 cited

The Gaseous Environments of Quasars: Associate Absorption Lines with Density and Distance Constraints

Chen Chen, Fred Hamann, Leah Simon +1

Associated absorption lines (AALs) in quasar spectra are valuable probes of the gas kinematics and physical conditions in quasar environments. The host galaxies are by definition i…

astro-ph.CO2012★ 4 cited

Narrow UV Absorption Line Outflows from Quasars

Fred Hamann, Leah Simon, Paola Rodriguez Hidalgo +1

Narrow absorption line (NAL) outflows are an important yet poorly understood part of the quasar outflow phenomenon. We discuss one particular NAL outflow that has high speeds, time…

astro-ph.CO2010★ 18 cited

The Origins of a Rich Absorption Line Complex in a Quasar at Redshift 3.45

Leah E. Simon, Fred Hamann

We discuss the nature and origin of a rich complex of narrow absorption lines in the quasar J102325.31+514251.0 at redshift 3.447. We measure nine C IV(\lambda1548,1551) absorption…

astro-ph.CO2010★ 23 cited

Metallicity and Far-Infrared Luminosity of High Redshift Quasars

Leah E. Simon, Fred Hamann

We present the results of an exploratory study of broad line region (BLR) metallicity in 34 2.2 < z < 4.6 quasars with far-infrared (FIR) luminosities (L_FIR) from 10^13.4 to 10^12…

astro-ph.GA2009

Quasar Metal Abundance and FIR Luminosity

L. E. Simon, F. Hamann

We compare the metallicities in high-redshift quasars to the star formation rates (SFR) in their host galaxies using measurements of broad emission lines and far-infrared (FIR) lum…