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Constraints on the correlation between QSO luminosity and host halo mass from high-redshift quasar clustering
Martin White, Paul Martini, J. D. Cohn
Recent measurements of high-redshift QSO clustering from the Sloan Digital Sky Survey indicate that QSOs at z~4 have a bias b~14. We find that this extremely high clustering amplit…
First Measurement of a Rapid Increase in the AGN Fraction in High-Redshift Clusters of Galaxies
Jason Eastman, Paul Martini, Gregory Sivakoff +3
We present the first measurement of the AGN fraction in high-redshift clusters of galaxies (z~0.6) with spectroscopy of one cluster and archival data for three additional clusters.…
The Distribution of AGN in Clusters of Galaxies
Paul Martini, John S. Mulchaey, Daniel D. Kelson
We present a study of the distribution of AGN in clusters of galaxies with a uniformly selected, spectroscopically complete sample of 35 AGN in eight clusters at z = 0.06 to 0.31.…
The Stellar Populations of Seyfert 2 Nuclei
Marc Sarzi, Joe Shields, Rick Pogge +1
We present a preliminary analysis of the stellar populations in the central parsecs of a sample of 22 Seyfert 2 galaxies, based on a careful separation of nebular emission and stel…