A Unique View of AGN-Driven Molecular Outflows: The Discovery of a Massive Galaxy Counterpart to a \$z=2.4\$ High-Metallicity Damped Lyman-\${\textbackslash}alpha\$ Absorber. Rudie, G. C., Newman, A. B., & Murphy, M. T. ArXiv e-prints, 1703:arXiv:1703.03807, March, 2017.
A Unique View of AGN-Driven Molecular Outflows: The Discovery of a Massive Galaxy Counterpart to a \$z=2.4\$ High-Metallicity Damped Lyman-\${\textbackslash}alpha\$ Absorber [link]Paper  abstract   bibtex   
We report the discovery of massive \${\textbackslash}log(M/M_{\textbackslash}odot)=10.74{\textasciicircum}\{+0.18\}_\{-0.16\}\$ galaxy at the same redshift as a carbon-monoxide bearing sub-damped Lyman \${\textbackslash}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 (\${\textbackslash}sigma_\{{\textbackslash}rm\{[O III]\}\}=303 {\textbackslash}pm 12\$ km s\${\textasciicircum}\{-1\}\$) with ratios characteristic of excitation by an active galactic nucleus (AGN). The galaxy has a factor of \${\textbackslash}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{\textbackslash}sim2\$ mass-metallicity relationship. Metallic absorption associated with the DLA is spread over a velocity range \${\textbackslash}Delta v {\textgreater} 1000\$ km s\${\textasciicircum}\{-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.
@article{rudie_unique_2017,
	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}-\${\textbackslash}alpha\$ {Absorber}},
	volume = {1703},
	shorttitle = {A {Unique} {View} of {AGN}-{Driven} {Molecular} {Outflows}},
	url = {http://adsabs.harvard.edu/abs/2017arXiv170303807R},
	abstract = {We report the discovery of massive 
\${\textbackslash}log(M/M\_{\textbackslash}odot)=10.74{\textasciicircum}\{+0.18\}\_\{-0.16\}\$ galaxy at the same redshift as a
carbon-monoxide bearing sub-damped Lyman \${\textbackslash}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
(\${\textbackslash}sigma\_\{{\textbackslash}rm\{[O III]\}\}=303 {\textbackslash}pm 12\$ km s\${\textasciicircum}\{-1\}\$) with ratios
characteristic of excitation by an active galactic nucleus (AGN). The
galaxy has a factor of \${\textbackslash}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{\textbackslash}sim2\$ mass-metallicity relationship. Metallic
absorption associated with the DLA is spread over a velocity range
\${\textbackslash}Delta v {\textgreater} 1000\$ km s\${\textasciicircum}\{-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.},
	urldate = {2017-03-15},
	journal = {ArXiv e-prints},
	author = {Rudie, Gwen C. and Newman, Andrew B. and Murphy, Michael T.},
	month = mar,
	year = {2017},
	keywords = {Astrophysics - Astrophysics of Galaxies},
	pages = {arXiv:1703.03807},
}

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