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Molecular outflows in galaxy merger simulations with embedded active galactic nuclei

Research output: Contribution to journalArticle

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

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Original languageEnglish
Pages (from-to)L107-L110
JournalAstrophysical Journal
Issue number2 II
Publication statusPublished - 10 May 2006


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.

    Research areas

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

ID: 145370632