%0 Generic %1 rudie2017unique %A Rudie, Gwen C. %A Newman, Andrew B. %A Murphy, Michael T. %D 2017 %K agn association dla %T A Unique View of AGN-Driven Molecular Outflows: The Discovery of a Massive Galaxy Counterpart to a $z=2.4$ High-Metallicity Damped Lyman-$\alpha$ Absorber %U http://arxiv.org/abs/1703.03807 %X We report the discovery of massive $łog(M/M_ødot)=10.74^+0.18_-0.16$ galaxy at the same redshift as a carbon-monoxide bearing sub-damped Lyman $\alpha$ absorber (sub-DLA) seen in the spectrum of the QSO J1439+1117. The galaxy, J1439B, is located 4.7" from the QSO sightline, a projected distance of 38 physical kpc at $z=2.4189$, and exhibits broad optical emission lines ($\sigma_O III=303 12$ km s$^-1$) with ratios characteristic of excitation by an active galactic nucleus (AGN). The galaxy has a factor of $\sim$10 lower star formation than is typical of star-forming galaxies of the same mass and redshift. The nearby DLA is highly enriched, suggesting its galactic counterpart must be massive if it follows the $z\sim2$ mass-metallicity relationship. Metallic absorption associated with the DLA is spread over a velocity range $\Delta v > 1000$ km s$^-1$, suggesting an energetic origin. We explore the possibility that a different galaxy could be responsible for the rare absorber, and conclude it is unlikely based on imaging, integral field spectroscopy, and high-$z$ massive galaxy pair statistics. We argue that the gas seen in absorption against the QSO was likely ejected from the galaxy J1439B and therefore provides a unique observational probe of AGN feedback in the distant universe.

@misc{rudie2017unique, abstract = {We report the discovery of massive $\log(M/M_\odot)=10.74^{+0.18}_{-0.16}$ galaxy at the same redshift as a carbon-monoxide bearing sub-damped Lyman $\alpha$ absorber (sub-DLA) seen in the spectrum of the QSO J1439+1117. The galaxy, J1439B, is located 4.7" from the QSO sightline, a projected distance of 38 physical kpc at $z=2.4189$, and exhibits broad optical emission lines ($\sigma_{\rm{[O III]}}=303 \pm 12$ km s$^{-1}$) with ratios characteristic of excitation by an active galactic nucleus (AGN). The galaxy has a factor of $\sim$10 lower star formation than is typical of star-forming galaxies of the same mass and redshift. The nearby DLA is highly enriched, suggesting its galactic counterpart must be massive if it follows the $z\sim2$ mass-metallicity relationship. Metallic absorption associated with the DLA is spread over a velocity range $\Delta v > 1000$ km s$^{-1}$, suggesting an energetic origin. We explore the possibility that a different galaxy could be responsible for the rare absorber, and conclude it is unlikely based on imaging, integral field spectroscopy, and high-$z$ massive galaxy pair statistics. We argue that the gas seen in absorption against the QSO was likely ejected from the galaxy J1439B and therefore provides a unique observational probe of AGN feedback in the distant universe.}, added-at = {2017-03-14T09:55:41.000+0100}, author = {Rudie, Gwen C. and Newman, Andrew B. and Murphy, Michael T.}, biburl = {https://www.bibsonomy.org/bibtex/2a9cd91ccbd4619e7e6a86f66a1558eef/miki}, description = {[1703.03807] A Unique View of AGN-Driven Molecular Outflows: The Discovery of a Massive Galaxy Counterpart to a $z=2.4$ High-Metallicity Damped Lyman-$\alpha$ Absorber}, interhash = {b5c5ae5618aeac77723f88a268089d20}, intrahash = {a9cd91ccbd4619e7e6a86f66a1558eef}, keywords = {agn association dla}, note = {cite arxiv:1703.03807Comment: 14 pages, 9 figures, to be submitted to ApJ}, timestamp = {2017-03-14T09:55:41.000+0100}, title = {A Unique View of AGN-Driven Molecular Outflows: The Discovery of a Massive Galaxy Counterpart to a $z=2.4$ High-Metallicity Damped Lyman-$\alpha$ Absorber}, url = {http://arxiv.org/abs/1703.03807}, year = 2017 }