= user generated What's this? This image provided by: A scenario
of Jupiter system formation. First phase: Jupiter forms, its
Hill and outer radii coincide, and no subnebula can exist (first
line). Second phase: formation of the satellite system. A
subnebula appears, fed in its infancy by gas and gas-coupled
solids originating from the solar. Planetesimals, some of them
having lost their volatile due to temperature and pressure
conditions prevailing in the subnebula, grow to form satellites
(second and third lines). When the subnebula disappears (fourth
line), the irregular satellites are captured The first phase
(first line in Fig. 2 ), the formation of Jupiter, took place
during the nebular epoch of Solar System history, when the
gaseous component was still present and the solid component was
slowly giving birth to planetesimals by means of accumulation
processes. The second phase (second to fourth lines in Fig. 2 )
begins when Jupiter’s region of gravitational influence
(quantified by its Hill’s radius) en