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Anders Johansen. Profile picture.

Anders Johansen

Professor

Anders Johansen. Profile picture.

Dust Evolution and the Formation of Planetesimals

Author

  • T. Birnstiel
  • M. Fang
  • A. Johansen

Summary, in English

The solid content of circumstellar disks is inherited from the interstellar medium: dust particles of at most a micrometer in size. Protoplanetary disks are the environment where these dust grains need to grow at least 13 orders of magnitude in size. Our understanding of this growth process is far from complete, with different physics seemingly posing obstacles to this growth at various stages. Yet, the ubiquity of planets in our galaxy suggests that planet formation is a robust mechanism. This chapter focuses on the earliest stages of planet formation, the growth of small dust grains towards the gravitationally bound “planetesimals”, the building blocks of planets. We will introduce some of the key physics involved in the growth processes and discuss how they are expected to shape the global behavior of the solid content of disks. We will consider possible pathways towards the formation of larger bodies and conclude by reviewing some of the recent observational advances in the field.

Department/s

  • Lund Observatory

Publishing year

2016-12-01

Language

English

Pages

41-75

Publication/Series

Space Science Reviews

Volume

205

Issue

1-4

Document type

Journal article review

Publisher

Springer

Topic

  • Astronomy, Astrophysics and Cosmology

Keywords

  • Accretion disks
  • Circumstellar matter
  • Planets and satellites: formation
  • Protoplanetary disks

Status

Published

ISBN/ISSN/Other

  • ISSN: 0038-6308