Accretion through the inner edges of protoplanetary disks by a giant solid state pump

Abstract

At the inner edge of a protoplanetary disk solids are illuminated by stellar light. This illumination heats the solids and creates temperature gradients along their surfaces. Interactions with ambient gas molecules lead to a radial net gas flow. Every illuminated solid particle within the edge is an individual small gas pump transporting gas inward. In total the inner edge can provide local mass flow rates as high as $\dot{M}=10^{-5}{M}_{\odot }$ yr${}^{-1}$.

References in corpus (6)

• HST measures of Mass Accretion Rates in the Orion Nebula Cluster
• Photophoretic separation of metals and silicates: the formation of Mercury like planets and metal depletion in chondrites
• Water transport in protoplanetary disks and the hydrogen isotopic composition of chondrites
• The photophoretic sweeping of dust in transient protoplanetary disks
• Photophoretic Structuring of Circumstellar Dust Disks
• Thermal and Photophoretic Properties of Dust Mantled Chondrules and Sorting in the Solar Nebula

Cited by in corpus (2)

• Understanding planet formation using microgravity experiments
• The motion of chondrules and other particles in a protoplanetary disc with temperature fluctuations