How do terrestrial planets form and evolve?

I study critical aspects of star and planet formation, which cross the boundaries of astro- and geophysics.
In order to embed the birth and life cycle of rocky planets in an integrated picture, I employ theoretical and numerical techniques to quantify and predict major physical and chemical controls of their accretion and evolution.

Please find an introduction to some of my projects below.

Recent projects

Chondrule formation from planetesimal collisions

Combining geochemical constraints from chondritic meteorites with interior evolution models of planetesimals, we resolve a long-standing inconsistency of 'planetary' chondrule formation models. That allows us to derive constraints for the accretion dynamics of planets at the time of the solar protoplanetary disk.

Can Planet 9 be an exoplanet intruder?

Using computer simulations of the Solar birth star formation environment we calculate the odds that Planet 9 – if it exists – was captured from outside of the Solar system. Cross-matching the capture probability with enrichment from short-lived radioisotopes – as constrained by meteoritic abundances – reveals that these chances are low.