Capture of Interstellar Planetesimals in Protoplanetary Discs in Binary Star Systems - Astrobiology Web

Fraction of planetesimal interactions that resulted in a capture (left) or a temporary capture (right) for planetesimals of different sizes (R) and stars with different separations. Each point represents anywhere from 10,000-100,000 simulations. The single case results were also obtained with REBOUND using the same set-up for direct comparison. The grey dotted line represents the theoretical amount of captures for the single case derived by Grishin et al. (2019). -- [astro-ph. EP]

[astro-ph. EP] Planet formation requires growth over 12 orders of magnitude in size, from micron-sized dust grains to fully formed planets.