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- W2610442719 endingPage "83" @default.
- W2610442719 startingPage "83" @default.
- W2610442719 abstract "We study winds in 12 X-ray AGN host galaxies at . We find, using the low-ionization Fe ii λ2586 absorption in the stacked spectra, that the probability distribution function (PDF) of the centroid-velocity shift in AGNs has 50th (median), 16th, and 84th percentiles of (−87, −251, +86) km s−1 respectively. The PDF of the velocity dispersion in AGNs has 50th (median), 84th, and 16th percentiles of (139, 253, 52) km s−1 respectively. The centroid velocity and the velocity dispersions are obtained from a two-component (ISM+wind) absorption-line model. The equivalent width PDF of the outflow in AGNs has 50th (median), 84th, and 16th percentiles of (0.4, 0.8, 0.1) Å. There is a strong ISM component in Fe ii absorption (with (1.2, 1.5, 0.8) Å, implying the presence of a substantial amount cold gas in the host galaxies. For comparison, star-forming and X-ray undetected galaxies at a similar redshift, matched roughly in stellar mass and galaxy inclination, have a centroid-velocity PDF with percentiles of (−74, −258, +90) km s−1, and a velocity-dispersion PDF with percentiles of (150, 259, 57) km s−1. Thus, winds in the AGN are similar to star formation-driven winds, and are too weak to escape and expel substantial cool gas from galaxies. Our sample doubles the previous sample of AGNs studied at and extends the analysis to . A joint reanalysis of the AGN sample and our sample yields consistent results to the measurements above." @default.
- W2610442719 created "2017-05-12" @default.
- W2610442719 creator A5034370718 @default.
- W2610442719 creator A5041844526 @default.
- W2610442719 creator A5051126966 @default.
- W2610442719 creator A5062477074 @default.
- W2610442719 creator A5063009942 @default.
- W2610442719 creator A5071424985 @default.
- W2610442719 creator A5076325622 @default.
- W2610442719 creator A5085250575 @default.
- W2610442719 creator A5091071046 @default.
- W2610442719 date "2017-05-26" @default.
- W2610442719 modified "2023-09-26" @default.
- W2610442719 title "No Evidence for Feedback: Unexceptional Low-ionization Winds in Host Galaxies of Low Luminosity Active Galactic Nuclei at Redshift<i>z</i>∼ 1" @default.
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