Speaker
Description
Active galactic nucleus (AGN) feedback drives powerful outflows that play a crucial role in galaxy evolution. The physical origin of asymmetric outflow structures seen in observations remains unclear, as such asymmetries are often attributed to dust obscuration rather than being intrinsically produced. Recent infrared observations with JWST of NGC 7469, however, reveal intrinsically asymmetric outflows, suggesting a physical origin beyond simple obscuration. We perform three-dimensional special relativistic hydrodynamic (SRHD) simulations to study the interaction between an AGN wind and a clumpy galactic disk interstellar medium (ISM). At early times ($\sim 0.1\,\mathrm{Myr}$), the wind--disk interaction naturally produces strongly asymmetric bipolar outflows, with one side reaching velocities of $\sim 2000\,\mathrm{km\,s^{-1}}$ while the other is suppressed by dense gas. Using TRIDENT, a post-processing tool that generates synthetic spectra from hydrodynamic simulations, we generate synthetic spectra of the high-ionization [Ne~V] $24.3\,\mu\mathrm{m}$ line and find that the asymmetry leads to skewed line profiles and preferential blueshifted components. These results demonstrate that environmental interaction alone can explain observed one-sided outflows, providing a direct link between SRHD simulations and high-ionization spectral observations.
| Participate the oral/poster presentation award competition | Yes |
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