Abstract:
We present the dynamical evolution of 10 open clusters, which were part of our previous studies.
These clusters include both young and intermediate-age open clusters with ages ranging from 25 ± 19 Myr to
1.78 ± 0.20 Gyr. The total mass of these clusters ranges from 356.18 ± 142.90 to 1811.75 ± 901.03 M . The
Galactocentric distances to the clusters are in the range of 8.91 ± 0.02–11.74 ± 0.18 kpc. The study is based
on the ground-based UBVRI data supplemented by the astrometric data from the Gaia archive. We studied
the minimum spanning tree of the member stars for these clusters. The mass segregation in these clusters was
quantified by mass segregation ratios calculated from the mean edge length obtained through the minimum
spanning tree. The clusters NGC 2360, NGC 1960, IC 1442, King 21 and SAI 35 have MSR to be 1.65±0.18,
1.94±0.22, 2.21±0.20, 1.84±0.23 and 1.96±0.25, respectively, which indicate moderate mass segregation
in these clusters. The remaining five clusters are found to exhibit weak or no mass segregation. We used the
ratio of half mass radius to the tidal radius i.e., Rh/Rt to investigate the effect of the tidal interactions on the
cluster structure and dynamics. The ratios of half mass radii to tidal radii are found to be positively correlated
with the Galactocentric distances with a linear slope of 0.06±0.01 having linear regression coefficientr-square
=0.93 for the clusters.
