A Direct Linkage Between AGN Outflows in The Narrow-line Regions and The
  X-ray Emission From The Accretion disks
  The origin of outflow in narrow-line region (NLR) of active galactic nucleus
(AGN) is studied in this paper by focusing on the relationship between the
[\ion{O}{3}]$\lambda$5007 line profile and the hard X-ray (in a bandpass of
2-10 keV) emission from the central SMBH in type-I AGNs. A sample of 47 local
X-ray selected type-I AGNs at $z<0.2$ is extracted from the 2XMMi/SDSS DR7
catalog that is originally crossmatched by Pineau et al. The X-ray luminosities
in an energy band from 2 to 10keV of these luminous AGNs range from $10^{42}$
to $10^{44}\ \mathrm{erg\ s^{-1}}$. A joint spectral analysis is performed on
their optical and X-ray spectra, in which the [\ion{O}{3}] line profile is
modeled by a sum of several Gaussian functions to quantify its deviation from a
pure Gaussian function. The statistics allows us to identify a moderate
correlation with a significance level of 2.78$\sigma$: luminous AGNs with
stronger [\ion{O}{3}] blue asymmetry tend to have steeper hard X-ray spectra.
By identifying a role of $L/L_{\mathrm{Edd}}$ on the correlation at a
$2-3\sigma$ significance level in both direct and indirect ways, we argue that
the photon index versus asymmetry correlation provides evidence that the AGN's
outflow commonly observed in its NLR is related with the accretion process
occurring around the central SMBH, which favors the wind/radiation model for
the origin of the outflow in luminous AGNs.
