TY - JOUR
T1 - Integral-field spectroscopy of type II QSOs at z= 0.3-0.4
AU - Humphrey, A.
AU - Villar-Martin, M.
AU - Sanchez, S.
AU - Martinez-Sansigre, A.
AU - Delgado, R.
AU - Perez, E.
AU - Tadhunter, C.
AU - Perez-Torres, M.
PY - 2010
Y1 - 2010
N2 - We present and analyse integral-field observations of six type II QSOs with z= 0.3–0.4, selected from the Sloan Digital Sky Survey (SDSS). Two of our sample are found to be surrounded by a nebula of warm ionized gas, with the largest nebula extending across 8 arcsec (40 kpc). Some regions of the extended nebulae show kinematics that are consistent with gravitational motion, while other regions show relatively perturbed kinematics: velocity shifts and linewidths too large to be readily explained by gravitational motion. We propose that a ∼20 × 20 kpc outflow is present in one of the galaxies. Possible mechanisms for triggering the outflow are discussed. In this object, we also find evidence for ionization both by shocks and by the radiation field of the AGN.
AB - We present and analyse integral-field observations of six type II QSOs with z= 0.3–0.4, selected from the Sloan Digital Sky Survey (SDSS). Two of our sample are found to be surrounded by a nebula of warm ionized gas, with the largest nebula extending across 8 arcsec (40 kpc). Some regions of the extended nebulae show kinematics that are consistent with gravitational motion, while other regions show relatively perturbed kinematics: velocity shifts and linewidths too large to be readily explained by gravitational motion. We propose that a ∼20 × 20 kpc outflow is present in one of the galaxies. Possible mechanisms for triggering the outflow are discussed. In this object, we also find evidence for ionization both by shocks and by the radiation field of the AGN.
U2 - 10.1111/j.1745-3933.2010.00906.x
DO - 10.1111/j.1745-3933.2010.00906.x
M3 - Article
SN - 1745-3925
VL - 408
SP - L1-L5
JO - Monthly Notices of the Royal Astronomical Society: Letters
JF - Monthly Notices of the Royal Astronomical Society: Letters
IS - 1
ER -