IMPETUS: New Cloudy's radiative tables for accretion onto a galaxy black hole

TL;DR

This paper introduces digital radiative tables for simulating gas accretion onto supermassive black holes, considering different spectral energy distributions to improve modeling accuracy of physical processes.

Contribution

The paper provides new radiative tables for accretion simulations, incorporating two SED models and detailed physical mechanism quantification, enhancing the modeling of SMBH accretion.

Findings

Discrepancies between SEDs in different physical regimes.

Similarities in physical mechanisms across SEDs.

Tables useful for modeling SMBH outflows.

Abstract

We present digital tables for the radiative terms that appear in the energy and momentum equations used to simulate the accretion onto supermassive black holes (SMBHs) in the center of galaxies. Cooling and heating rates and radiative accelerations are calculated with two different Spectral Energy Distributions (SEDs). One SED is composed of an accretion disk + [X-ray]-powerlaw, while the other is made of an accretion disk + [Corona]-bremsstrahlung with $T_X=1.16 \times 10^8$ K, where precomputed conditions of adiabatic expansion are included. Quantification of different physical mechanisms at operation are presented, showing discrepancies and similarities between both SEDs in different ranges of fundamental physical parameters (i.e., ionization parameter, density, and temperature). With the recent discovery of outflows originating at sub-parsec scales, these tables may provide a useful tool to model gas accretion processes onto a SMBH.