activity
19972025
most citedIntrinsic Absorption Lines in Seyfert 1 Galaxies. I. Ultraviolet Spectra from the Hubble Space Telescope

315 citations · 4.5k across the 62 of their papers we have counts for

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5 papers · 1 filter

astro-ph.CO2012★ 189 cited

Feedback from Mass Outflows in Nearby Active Galactic Nuclei I. UV and X-ray Absorbers

D. M. Crenshaw, S. B. Kraemer

We present an investigation into the impact of feedback from outflowing UV and X-ray absorbers in nearby z < 0.04 AGN. From studies of the kinematics, physical conditions, and vari…

astro-ph.CO2012★ 13 cited

Observations of Outflowing UV Absorbers in NGC 4051 with the Cosmic Origins Spectrograph

S. B. Kraemer, D. M. Crenshaw, J. P. Dunn +6

We present new Hubble Space Telescope (HST)/Cosmic Origins Spectrograph observations of the Narrow-Line Seyfert 1 galaxy NGC 4051. These data were obtained as part of a coordinated…

astro-ph.CO2010★ 25 cited

Multi-wavelength Probes of Obscuration Towards the Narrow Line Region in Seyfert Galaxies

S. B. Kraemer, H. R. Schmitt, D. M. Crenshaw +4

We present a study of reddening and absorption towards the Narrow Line Regions (NLR) in active galactic nuclei (AGN) selected from the Revised Shapley-Ames, 12mu, and Swift/Burst A…

astro-ph.CO2010★ 77 cited

Mid-Infrared Properties of the Swift Burst Alert Telescope Active Galactic Nuclei Sample of the Local Universe. I. Emission-Line Diagnostics

K. A. Weaver, M. Meléndez, R. F. Mushotzky +9

We compare mid-infrared emission-line properties, from high-resolution Spitzer spectra of a hard X-ray (14 -- 195 keV) selected sample of nearby (z < 0.05) AGN detected by the Burs…

astro-ph.CO2009★ 128 cited

Radial Velocity Offsets Due to Mass Outflows and Extinction in Active Galactic Nuclei

D. M. Crenshaw, H. R. Schmitt, S. B. Kraemer +2

We present a study of the radial velocity offsets between narrow emission lines and host galaxy lines (stellar absorption and H I 21-cm emission) in Seyfert galaxies with observed…