Radiation-driven outflows in AGNs: Revisiting feedback effects of scattered and reprocessed photons

Abstract

We perform two-dimensional hydrodynamical simulations of slowly rotating accretion flows in the region of $0.01-7\mathrm{pc}$ around a supermassive black holes with $M_{\mathrm{BH}}=10^8{M}_{\odot }$. The accretion flow is irradiated by the photons from the central active galactic nucleus (AGN). In addition to the direct radiation from the AGN, we have also included the "re-radiation", i.e., the locally produced radiation by Thomson scattering, line and bremsstrahlung radiation. Compare to our previous work, we have improved the calculation of radiation force due to the Thomson scattering of X-ray photons from the central AGN. We find that this improvement can significantly increase the mass flux and velocity of outflow. We have compared the properties of outflow --- including mass outflow rate, velocity, and kinetic luminosity of outflow --- in our simulation with the observed properties of outflow in AGNs and found that they are in good consistency. This implies that the combination of line and re-radiation forces is the possible origin of observed outflow in luminous AGNs.

14 pages, 6 figures; accepted for publication in MNRAS

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Cited by in corpus (3)

• Ionized outflows from active galactic nuclei as the essential elements of feedback
• Quantifying Feedback from Narrow Line Region Outflows in Nearby Active Galaxies. III. Results for the Seyfert 2 Galaxies Markarian 3, Markarian 78, and NGC 1068
• Two-dimensional Inflow-outflow Solution of Supercritical Accretion Flow