Search Publications

Bi-Dimensional Spectrography at HST-Like Spatial Resolution: [OIII] Kinematics and Ionization in the NLR of NGC 1068

Binette, L.; Wilson, A. S.; Ferruit, P. +1 more

We present a study at HST-like spatial resolution of the gas kinematics in the innermost part of NGC 1068. This work is based on observations with the integral field spectrograph TIGER mounted on the CFH Telescope. We first derived the final spatial PSF of our data and checked its photometric integrity by comparison with two independent [OIII] HST…

The Location of the Nucleus of NGC 1068 from HST Imaging Polarimetry and Absolute Astrometry

Macchetto, F. D.; Capetti, A.; Lattanzi, M. G.

We present the results of a program to obtain an accurate (better than 100 mas) astrometry of HST images of NGC 1068 and consequently a direct registration with radio images. The optical peak seen in the HST images is located at α = 02h42m40.711s, δ = -00°00'47.81 (J2000, FK5), with an error of 80 mas. The hidden nucleus, as determined by HST imag…

The Jet Driven Motions in the Narrow Line Region of NGC 1068

Robinson, Andrew; Axon, David J.; Marconi, A. +2 more

We have obtained HST FOC f/48 long-slit spectroscopy of the central 2 arcseconds of the Narrow Line Region of NGC 1068 between 3500-5400\OA with a spectral resolution of 1.78\OA/pixel. At a spatial scale of 0″.0287 per pixel these data provide an order of magnitude improvement in resolution over previous ground based spectra and allow us to trace …

Evidence for Absorption in NGC 1068

Boksenberg, A.; Catchpole, R. M.

We present evidence that interstellar absorption is responsible for producing much of the complex morphology seen in the inner few arcseconds of NGC 1068.

HST WFPC2 Line and Continuum Images of NGC 1068

Ford, H. C.; Kriss, G. A.; Tsvetanov, Z. I. +1 more

Clumpy Structure and Polarization in NGC 1068

Kishimoto, M.

The polarization map from the HST archival data of the imaging polarimetry for NGC 1068 is analyzed. In the HST images, the central few arcsecond region seems to consist of several clumps, and if we extract the polarization of the clumps separately, the viewing angle of each clump can be determined. This enables us to have a three-dimensional view…