Previous abstract Next abstract
We have obtained a large number of Hubble Space Telescope WFPC2 observations of the cores of active galaxies at z$<$ 0.03. The observations were carried out using the F606W filter, similar to the V band, which gives a high throughput for a good signal to noise ratio.
The 0.046 arcsec/pixel resolution afforded by the WFPC2 has enabled us to link the morphological charcateristics to the specrtal properties of AGN. Specifically, we have been able to see whether Seyfert 1 galaxies show a strong point source at their center, and Seyfert 2 galaxies have an obscured central engine, as predicted by the current model. During this analysis we have identified several candidates which fail to conform to this model.
Additionally, a number of galaxies have shown heavily disturbed nuclei. Others have cores penetrated by dust lanes, some have double nuclei, and a significant number have barred structures.
Correlations have also been drawn between other characteristics such as polarization and emission in other wavelengths, with particular application to unified schemes and models.
Monday program listing