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Title: ACCRETION THROUGH THE INNER EDGES OF PROTOPLANETARY DISKS BY A GIANT SOLID STATE PUMP

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 M-dot = 10{sup -5} M{sub Sun} yr{sup -1}.
Authors:
;  [1]
  1. Faculty of Physics, University Duisburg-Essen, Lotharstrasse 1, 47048 Duisburg (Germany)
Publication Date:
OSTI Identifier:
22136561
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal Letters; Journal Volume: 774; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; FLOW RATE; GAS FLOW; ILLUMINANCE; MOLECULES; PROTOPLANETS; TEMPERATURE GRADIENTS; VISIBLE RADIATION