  Centaurs are minor planets orbiting between Jupiter and Neptune that have or
had crossing orbits with one or more giant planets. Recent observations and
reinterpretation of previous observations have revealed the existence of ring
systems around 10199 Chariklo and 2060 Chiron. However, the origin of the ring
systems around such a minor planet is still an open question. Here, we propose
that the tidal disruption of a differentiated object that experiences a close
encounter with a giant planet could naturally form diverse ring-satellite
systems around the Centaurs. During the close encounter, the icy mantle of the
passing object is preferentially ripped off by the planet's tidal force and the
debris is distributed mostly within the Roche limit of the largest remnant
body. Assuming the existence of $20-50$wt% silicate core below the icy mantle,
a disk of particles is formed when the objects pass within $0.4-0.8$ of the
planet's Roche limit with the relative velocity at infinity $3-6$km s$^{-1}$
and 8h initial spin period of the body. The resultant ring mass is $0.1-10$% of
the central object's mass. Such particle disks are expected to spread radially,
and materials spreading beyond the Roche limit would accrete into satellite(s).
Our numerical results suggest that ring formation would be a natural outcome of
such extreme close encounters and Centaurs can naturally have such ring systems
because they cross the orbits of the giant planets.
