196 citations · 551 across the 16 of their papers we have counts for
3 papers · 1 filter
Spatially extended absorption around the z=2.63 radio galaxy MRC 2025-218: outflow or infall?
A. Humphrey, M. Villar-Martin, S. F. Sanchez +7
We present an investigation into the absorber in front of the z=2.63 radio galaxy MRC 2025-218, using integral field spectroscopy obtained at the Very Large Telescope, and long sli…
Emission line activity in type 2 quasars from the Sloan Digital Sky Survey
Montse Villar-Martin, Andrew Humphrey, Alejo Martinez-Sansigre +3
We have compared the optical emission line ratios of type 2 quasars from Zakamska et al. with standard AGN photoionization model predictions, Seyfert 2s, HII galaxies, and narrow l…
On the nature of Seyfert galaxies with high [OIII]5007 blueshifts
S. Komossa, D. Xu, H. Zhou +2
We have studied the properties of Seyfert galaxies with high [OIII]5007 blueshifts (`blue outliers'), originally identified because of their strong deviation from the M_BH - sigma…