HST Imaging of Fading AGN Candidates I: Host-Galaxy Properties and Origin of the Extended Gas
We present narrow- and medium-band HST imaging, with supporting data, for 8 galaxies hosting fading AGN. These are selected to have AGN-ionized gas projected >10 kpc from the nucleus, and a significant shortfall of ionizing radiation, indicating fading of the AGN on ~50,000-year timescales. T...
Main Authors: | , , , , , , , , , , , , , |
---|---|
Format: | Journal article |
Published: |
2014
|