SIMBAD references

Tidal disruption events (TDEs) in active galactic nuclei (AGNs) mark a regime where traditional vacuum models fail to capture the full dynamics, especially due to interaction between stellar debris and preexisting accretion disks. We perform meshless hydrodynamic simulations incorporating both general relativistic (GR) effects and radiative cooling to study TDEs in AGNs with different orbital inclinations (θ_inc) of the disrupted star, ranging from projected prograde to retrograde orbits. We postprocess the simulations to derive multiwavelength light curves and identify several distinct features in the light curves, including a precursor flare from early debris-disk collision and a major flare driven by fallback. The dynamics of the stellar debris and accretion disk, and subsequently the light-curve features, are strongly affected by θ_inc and GR effects. Retrograde orbits (θ_inc = 135°) yield a more luminous, shorter major flare and a more prominent precursor than prograde ones (θ_inc = 22$\mathop{.}\limits^{\unicode{x000b0}}$5). During fallback, prograde cases (θ_inc = 22$\mathop{.}\limits^{\unicode{x000b0}}$5, 45°) develop a central cavity with spirals in the inner region of the AGN disk, leading to transient UV/X-ray suppression accompanied by oscillations, while higher inclinations (θ_inc = 90°, 135°) form a gradually tilting inner disk, potentially causing UV/X-ray dips via geometric effects at certain viewing angles. Relativistic apsidal precession alters stream collisions, producing structural differences in the inner disk, outer disk, and debris compared to Newtonian cases, and drives quasi-periodic signals in prograde configurations. These results provide predictive diagnostics for identifying AGN TDEs and interpreting observed light-curve diversity.