Molecular outflows in galaxy merger simulations with embedded active galactic nuclei

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

Research output: Contribution to journalArticle

36 Citations (Scopus)

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)
JournalAstrophysical Journal
Volume642
Issue number2 II
DOIs
StatePublished - May 10 2006

Fingerprint

active galactic nuclei
merger
outflow
galaxies
hydrodynamics
simulation
molecular gases
thermodynamic equilibrium
molecular clouds
radiative transfer
line of sight
kinematics
thermodynamics
signatures
profiles
gas
code
test
effect
prescription

Keywords

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

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Molecular outflows in galaxy merger simulations with embedded active galactic nuclei. / Narayanan, Desika; Cox, Thomas J.; Robertson, Brant E; Dave, Romeel S; Matteo, Tiziana D I; Hernquist, Lars; Hopkins, Philip; Kulesa, Craig; Walker, Christopher K.

In: Astrophysical Journal, Vol. 642, No. 2 II, 10.05.2006.

Research output: Contribution to journalArticle

Narayanan, Desika ; Cox, Thomas J. ; Robertson, Brant E ; Dave, Romeel S ; Matteo, Tiziana D I ; Hernquist, Lars ; Hopkins, Philip ; Kulesa, Craig ; Walker, Christopher K. / Molecular outflows in galaxy merger simulations with embedded active galactic nuclei. In: Astrophysical Journal. 2006 ; Vol. 642, No. 2 II.
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