# X-ray - Infrared relation of AGNs and search for highly obscured accretion in the AKARI NEP Field

## TL;DR

This study investigates the relationship between X-ray and infrared emissions of AGNs using AKARI and Chandra data, aiming to identify highly obscured and Compton-thick AGNs, and discusses future prospects with Spectrum-RG.

## Contribution

It utilizes AKARI's unique mid-infrared coverage combined with Chandra X-ray data to detect and analyze heavily obscured AGNs, including Compton-thick sources.

## Key findings

- Identification of heavily obscured AGNs through X-ray and IR comparison
- Detection of AGN candidates at z~1-2 using AKARI's IR bands
- Discussion of future observations with Spectrum-RG

## Abstract

The infrared Astronomical Satellite AKARI conducted deep ($\sim$ 0.4 deg$^2$) and wide ($\sim 5.4$ deg$^2$) surveys around the North Ecliptic Pole (NEP) with its InfraRed Camera (IRC) with nine filters continuously covering the 2-25 $\mu$m range. These photometric bands include three filters that fill the `Spitzer gap' between the wavelength coverages of IRAC and MIPS. This unique feature has enabled us to make sensitive mid-infrared detection of AGN candidates at z$\sim$ 1-2, based on the Spectral Energy Distribution (SED) fitting including hot dust emission in the AGN torus. This enables us to compare X-rays and the AGN torus component of the infrared emission to help us identify highly absorbed AGNs, including Compton-thick ones. We report our results of the Chandra observation of the AKARI NEP Deep Field and discuss the prospects for upcoming Spectrum-RG (eROSITA+ART-XC) on the AKARI Wide field.