Gemini mid-IR polarimetry of NGC 1068: Polarized structures around the nucleus
ASTROPHYSICAL JOURNAL 661:1 (2007) L29-L32
Integral-field observations of centaurus a nucleus
ESO ASTROPHY SYMP (2007) 277-279
Abstract:
We observed the nuclear region of Centaurus A in the J band with CIRPASS, mounted on GEMINI South telescope. Here we present the preliminary results focusing on the kinematic structure of the gas disk and present a simple model determining its kinematic orientation and inclination as well as an estimate of the mass of the central black hole.Integral-field spectroscopy of Centaurus A nucleus
Monthly Notices of the Royal Astronomical Society 374 (2007) 385-398
Mid-infrared sub-arcsecond spectroscopy of active galaxy nuclei
REV MEX AST ASTR 29 (2007) 117-119
Abstract:
I present recent spectroscopic observations of nearby AGN obtained at 8-13 mu m with TReCS on Gemini-S. The observations reveal variations in absorption depth on subarcsecond scales in Circinus and NGC 5506 and delineate the regions of ionized gas and PAH emission region in Circinus. Several nearby active galaxies show evidence of resolved circumnuclear dusty structures with sizes of 10s of parsecs. The silicate absorption profile towards the most heavily obscured nuclei are narrower than those in the galaxies with tau((9.7 mu m)) < 3, possibly reflecting larger average grain sizes in the latter resulting from destruction of the smallest grains by the AGN.Physics, and faith are worth debating
PHYSICS WORLD 20:12 (2007) 23-23