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Molecular Outflows in Galaxy Merger Simulations with Embedded AGN

Desika Narayanan·Thomas J. Cox·Brant Robertson·Romeel Dave·Tiziana Di Matteo·Lars Hernquist·Philip Hopkins·Craig Kulesa·Christopher Walker
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Abstract

We study the effects of feedback from active galactic nuclei (AGN) on emission from molecular gas in galaxy mergers by combining hydrodynamic simulations which include black holes with a three-dimensional, non-local thermodynamic equilibrium (LTE) radiative transfer code. We find that molecular clouds entrained in AGN winds produce an extended CO morphology with significant off-nuclear emission, which may be detectable via contour mapping. Furthermore, kinematic signatures of these molecular outflows are visible in emission line profiles when the outflow has a large line of sight velocity. Our results can help interpret current and upcoming observations of luminous infrared galaxies, as well as provide a detailed test of subresolution prescriptions for supermassive black hole growth in galaxy-scale hydrodynamic simulations.

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Desika Narayanan, Thomas J. Cox, Brant Robertson, Romeel Dave, Tiziana Di Matteo, Lars Hernquist, Philip Hopkins, Craig Kulesa, Christopher Walker. 2006-04-04. Molecular Outflows in Galaxy Merger Simulations with Embedded AGN. https://doi.org/10.1086/504846

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