HST IMAGING OF FADING AGN CANDIDATES. I. HOST-GALAXY PROPERTIES AND ORIGIN OF THE EXTENDED GAS*

@article{Keel2015HSTIO,
  title={HST IMAGING OF FADING AGN CANDIDATES. I. HOST-GALAXY PROPERTIES AND ORIGIN OF THE EXTENDED GAS*},
  author={William C. Keel and Walter Peter Maksym and Vardha Nicola Bennert and Chris J. Lintott and S. Drew Chojnowski and Alexei V. Moiseev and Aleksandrina Smirnova and Kevin Schawinski and Claudia Megan Urry and Daniel A. Evans and Anna Pancoast and Bryan D. Scott and Charles Showley and Kelsi Flatland},
  journal={The Astronomical Journal},
  year={2015},
  volume={149},
  pages={155}
}
  • William C. Keel, Walter Peter Maksym, +11 authors Kelsi Flatland
  • Published 2015
  • Physics
  • The Astronomical Journal
  • We present narrow- and medium-band Hubble Space Telescope imaging, with additional supporting ground-based imaging, spectrophotometry, and Fabry–Perot interferometric data, for eight galaxies identified as hosting a fading active galactic nucleus (AGN). These are selected to have AGN-ionized gas projected kpc from the nucleus and energy budgets with a significant shortfall of ionizing radiation between the requirement to ionize the distant gas and the AGN as observed directly, indicating fading… CONTINUE READING

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