Host galaxy properties of X-ray AGN in the Local Universe
  We study the host galaxy properties of active galactic nuclei (AGN) that have
been detected in X-rays in the nearby Universe ($\rm z<0.2$). For that purpose,
we use the catalogue provided by the ROSAT-2RXS in the 0.1-2.4\,keV energy
band, one of the largest X-ray datasets with spectroscopic observations. Our
sample consists of $\sim 900$ X-ray AGN. The catalogue provides classification
of the sources into type 1 and 2, based on optical spectra. $\sim 25\%$ of the
AGN are type 2. We use the available optical, near-IR and mid-IR photometry to
construct SEDs. We measure the stellar mass ($M_*$) and star formation rate
(SFR) of the AGN, by fitting these SEDs with the X-CIGALE code. We compare the
$M_*$ and SFR of the two AGN populations, taking into account their different
redshift and luminosity distributions. Based on our results, type 2 AGN tend to
live in more massive galaxies compared to their type 1 counterparts ($\rm
log\,[M_*(M_\odot)]=10.49^{+0.16}_{-0.10}$ vs. $10.23^{+0.05}_{-0.08}$), in
agreement with previous studies at higher redshifts. In terms of SFR, our
analysis shows, that in the nearby Universe, the number of X-ray AGN that live
in quiescent systems is increased compared to that at higher redshifts, in
accordance with previous studies in the local universe. However, the majority
of AGN ($\sim 75\%$) live inside or above the main sequence.
