Dynamical state of galaxy clusters evaluated from X-ray images
  X-ray images of galaxy clusters often show disturbed structures that are
indication of cluster mergers. As a complementary to our previous work on
dynamical state of 964 clusters observed by the Chandra, we process the X-ray
images for 1308 clusters from XMM-Newton archival data, together with the
images of 22 clusters newly released by the Chandra, and evaluate their
dynamical state from these X-ray images. The concentration index $c$, the
centroid shift $\omega$, the power ratio $P_3/P_0$ are calculated in circular
regions with a certain radius of 500 kpc, and the morphology index $\delta$ is
estimated within elliptical regions adaptive to the cluster size and shape. In
addition, the dynamical parameters for 42 clusters previously estimated from
Chandra images are upgraded based on the newly available redshifts. Good
consistence is found between dynamical parameters derived from XMM-Newton and
Chandra images for the overlapped sample of clusters in the two datasets. The
dependence of mass scaling relations on dynamical state is shown by using data
of 388 clusters.
