Dust dynamics in planet-forming discs in binary systems

The European Physical Journal Plus, vol. 138, pp. 25

Abstract

In multiple stellar systems, interactions among the companion stars and their discs affect planet formation. In the circumstellar case, tidal truncation makes protoplanetary discs smaller, fainter and less long-lived than those evolving in isolation, thereby reducing the amount of material (gas and dust) available to assemble planetary embryos. On the contrary, in the circumbinary case the reduced accretion can increase the disc lifetime, with beneficial effects on planet formation. In this chapter we review the main observational results on discs in multiple stellar systems and discuss their possible explanations, focusing on recent numerical simulations, mainly dealing with dust dynamics and disc evolution. Finally, some open issues and future research directions are examined.

Authors 4

1. Francesco Zagaria corresponding

   University of Cambridge

   Affiliation as printed

   Institute of Astronomy, University of Cambridge, Madingley Rd, Cambridge, CB3 0HA UK

   Institute of Astronomy, University of Cambridge, Madingley Rd, Cambridge, CB3 0HA, UK

2. Giovanni P. Rosotti Aachen Leiden Observatory

   Leiden University · University of Milan · University of Leicester · Leiden Observatory

   Affiliation as printed

   Dipartimento di Fisica, Università degli Studi di Milano, Via Giovanni Celoria 16, 20133 Milano, Italy

   Leiden Observatory, Leiden University, Niels Bohrweg 2, PO Box 9513, 2300 RA Leiden, The Netherlands

   School of Physics and Astronomy, University of Leicester, University Rd, Leicester, LE1 7RH UK

   Leiden Observatory, Leiden University, Niels Bohrweg 2, PO Box 9513, 2300 RA, Leiden, The Netherlands

3. Richard D. Alexander

   University of Leicester

   Affiliation as printed

   School of Physics and Astronomy, University of Leicester, University Rd, Leicester, LE1 7RH UK

   School of Physics and Astronomy, University of Leicester, University Rd, Leicester, LE1 7RH, UK

4. Cathie J. Clarke

   University of Cambridge

   Affiliation as printed

   Institute of Astronomy, University of Cambridge, Madingley Rd, Cambridge, CB3 0HA UK

   Institute of Astronomy, University of Cambridge, Madingley Rd, Cambridge, CB3 0HA, UK