Encyclopedia of Astrobiology

2015 Edition
| Editors: Muriel Gargaud, William M. Irvine, Ricardo Amils, Henderson James (Jim) CleavesII, Daniele L. Pinti, José Cernicharo Quintanilla, Daniel Rouan, Tilman Spohn, Stéphane Tirard, Michel Viso

Radial Drift

Reference work entry
DOI: https://doi.org/10.1007/978-3-662-44185-5_3012

Definition

Radial drift is a process in a  protoplanetary disk where the semimajor axes of the orbits of solid particles/bodies are modified as a result of gas-solid interactions (e.g., gas drag). Radial drift is directed toward regions of pressure maxima (generally toward the star).

See Also

Keywords

Planetesimals Protoplanetary disk 

Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.Space Research and Planetary Sciences, Physics InstituteUniversity of BernBernSwiss
  2. 2.Geophysical, Atmospheric and Planetary SciencesTel Aviv University, Raymond and Beverly Sackler Faculty of Exact ScienesTel AvivIsrael