  Considering effects of tidal plus centrifugal stress acting on icy-rocks and
the tensile strength thereof, icy-rocks being in the density range (1-2.4) g
cm-3 which had come into existence as collisional ejecta (debris) in the
vicinity of Pluto at the time when Pluto-Charon system came into being as a
result of a giant impact of a Kuiper Belt Object on the primordial Pluto, it is
shown, here, that these rocks going around Pluto in its vicinity are under slow
disruption generating a stable ring structure consisting of icy-rocks of
diameters in the range (20-90) km, together with fine dust and particles
disrupted off the rocks, and spread all over the regions in their respective
Roche Zones, various Roche radii being in ~1/2 three-body mean motion
resonance. Calculations of gravitational spheres of influence of Pluto which
turns out to be 4.2 x 106 km for prograde orbits and 8.5 x 106 km for
retrograde orbits together with the existence of Kuiper Belt in the vicinity of
Pluto assure that there may exist a few rocks (satellites)/dust rings/sheets so
far undiscovered moving in prograde orbits around the planet and few others
which are distant ones and move around Pluto in the region between 4.2x106 km
and 8.5x106 km in retrograde orbits.
