Hubble Space Telescope Observations of Extended [O III] λ5007 Emission in Nearby QSO2s: New Constraints On AGN / Host Galaxy Interaction.
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*Travis C. Fischer1†, S. B. Kraemer2, H. R. Schmitt3, L.F. Longo Micchi2, D. M. Crenshaw4, M. Revalski4∗, M.
Vestergaard5,6, M. Elvis7, C. M. Gaskell8, F. Hamann9, L. C. Ho10, J. Hutchings11, R. Mushotsky12, H.
Netzer13, T. Storchi-Bergmann14, A. Straughn1, T. J. Turner15, M. J. Ward16Draft version February 20, 2018*
We present a Hubble Space Telescope (HST) survey of extended [O III] _5007 emission for a sample
of 12 nearby (z {0.12), luminous Type 2 quasars (QSO2s), which we use to measure the extent
and kinematics of their AGN-ionized gas. We find the size of the observed [O III] regions scale with
luminosity in comparison to nearby, less luminous Seyfert galaxies and radially outflowing kinematics
to exist in all targets. We report an average maximum outflow radius of ∼600 pc, with gas continuing
to be kinematically influenced by the central AGN out to an average radius of ∼ 1130 pc. These
findings question the effectiveness of AGN being capable of clearing material from their host bulge in
the nearby universe and suggest that disruption of gas by AGN activity may prevent star formation
without requiring evacuation. Additionally, we find a dichotomy in our targets when comparing [O III]
radial extent and nuclear FWHM, where QSO2s with compact [O III] morphologies typically possess
broader nuclear emission-lines.
- 2MASX J07594101+5050245
- 2MASX J08025293+2552551
- MRK 34
- 2MASX J11001238+0846157
- SDSS J115245.66+101623.8
- FIRST J120041.4+314745
- 2MASX J13003807+5454367
- 2MASX J14054117+4026326
- B2 1435+30 (incorrect SIMBAD target object name is used, correct name is B2.1 1435+30)
- MRK 477 Referenced in ‘’The galaxy zoo survey for giant AGN-ionized clouds: past and present black hole accretion events.’’ Keel+ 2012, not as confirmed voorwerp or other cloud type.
- 2MASX J16531506+2349431
- 2MASX J17135038+5729546
Image mosaic created from above paper: Continuum-subtracted [O III] 5007 images of each target. Inset images display r-band SDSS images.
SDSS image cutouts in same order
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