Image Details
Caption: Figure 1.
Radial profiles of temperature, midplane pressure, and surface density in the PSN as a function of heliocentric distance, shown for different evolutionary stages (10 kyr, 100 kyr, 300 kyr, and 1 Myr). The vertical orange band highlights the present-day Uranus–Neptune region.
© 2026. The Author(s). Published by the American Astronomical Society.