Molecular outflows in galaxy merger simulations with embedded active galactic nuclei

Desika Narayanan, Thomas J. Cox, Brant Robertson, Romeel Davé, Tiziana D.I. Matteo, Lars Hernquist, Philip Hopkins, Craig Kulesa, Christopher K. Walker

Research output: Contribution to journalArticle

35 Scopus citations

Abstract

We study the effects of feedback from active galactic nuclei (AGNs) on emission from molecular gas in galaxy mergers by combining hydrodynamic simulations that 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.

Original languageEnglish (US)
Pages (from-to)L107-L110
JournalAstrophysical Journal
Volume642
Issue number2 II
DOIs
StatePublished - May 10 2006

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Keywords

  • Cosmology: theory
  • Galaxies: ISM
  • Galaxies: active
  • Galaxies: formation
  • Galaxies: interactions
  • Line: formation

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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