Supermassive black holes with high accretion rates in active galactic nuclei. VII. Reconstruction of velocity-delay maps by maximum entropy method

TL;DR

This study applies the maximum entropy method to reconstruct velocity-delay maps of emission lines in nine super-Eddington accreting active galactic nuclei, revealing diverse broad-line region geometries and kinematics.

Contribution

It introduces the application of the maximum entropy method to velocity-delay map reconstruction for super-Eddington AGNs, providing new insights into their broad-line region dynamics.

Findings

Six objects' maps are reliably reconstructed.

Detected infall in Mrk 335's BLR.

Observed outflow in Mrk 142.

Abstract

As one of the series of papers reporting on a large reverberation mapping campaign, we apply the maximum entropy method (MEM) to 9 narrow-line Seyfert 1 galaxies with super-Eddington accretion rates observed during 2012-2013 for the velocity-delay maps of their H\beta\ and H\gamma\ emission lines. The maps of 6 objects are reliably reconstructed using MEM. The maps of H\beta\ and H\gamma\ emission lines of Mrk 335 indicate that the gas of its broad-line region (BLR) is infalling. For Mrk 142, its H\beta\ and H\gamma\ lines show signatures of outflow. The H\beta\ and H\gamma\ maps of Mrk 1044 demonstrate complex kinematics -- a virialized motion accompanied by an outflow signature, and the H\beta\ map of IRAS F12397+3333 is consistent with a disk or a spherical shell. The H\beta\ maps of Mrk 486 and MCG +06-26-012 suggest the presence of an inflow and outflow, respectively. These super-Eddington accretors show diverse geometry and kinematics. Brief discussions of their BLRs are provided for each individual object.