Sebastiaan KrijtPostdoctoral Scholar

Research Focus:
Planet formation, dust coagulation, protoplanetary disk evolution
Hinds 505


After obtaining a BSc and MSc degree in physics at the University of Amsterdam, I received a PhD in astrophysics from Leiden University in 2015. In October 2015, I moved to the University of Chicago as a postdoc to join the Earths in Other Solar Systems research effort (part of NASA's Nexus for Exoplanetary System Science), a program that aims to understand the formation of habitable Earth-like planets. In 2017, I was awarded a Hubble Fellowship to continue my research at the University of Chicago.

Research Interests

I study the early stages of planet formation, where microscopic dust particles coalesce to form km-size planetesimals, the building blocks of planets. In particular, I am interested in how the dust's evolution influences the distribution of important volatiles (e.g., water, organics) in the protoplanetary nebula. 

Recent Publications

  • R. Schräpler, J. Blum, S. Krijt, J.-H. Raabe (2018)
    The physics of protoplanetesimal dust agglomerates: X. High-velocity collisions between small and large dust agglomerates as growth barrier
    The Astrophysical Journal, 853, 1 [ADS]
  • Krijt, S., Bowling, T. J., Lyons, R. J., and Ciesla, F. J. (2017)
    Fast litho-panspermia in the habitable zone of the TRAPPIST-1 system.
    The Astrophyical Journal Letters, 839, 2 [ADS] [UChicago News]
  • Krijt, S., Ciesla, F. J., and Bergin, E. A. (2016)
    Tracing water vapor and ice during dust growth.
    The Astrophysical Journal, 833, 285 [ADS]
  • Krijt, S. & Ciesla, F. J. (2016)
    Dust diffusion and settling in the presence of collisions: Trapping (sub)micron grains in the midplane.
    The Astrophysical Journal, 822, 111 [ADS] [EOS Blog post]
  • Krijt, S., Ormel, C. W., Dominik, C., and Tielens, A. G. G. M. (2016)
    A panoptic model for planetesimal formation and pebble delivery.
    Astronomy & Astrophysics, 586, A20 [ADS]

  • Krijt, S., Ormel, C. W., Dominik, C., and Tielens, A. G. G. M. (2015)
    Erosion and the limits to planetesimal growth.
    Astronomy & Astrophysics, 574, A83 [ADS]