I am interested in the birth and death of planetary systems.
My research focuses on numerical simulations of planet formation. I am
interested in the outcomes of collisions between planetesimals – the
building blocks of planets, and higher energy giant impacts, and the cumulative effect
these collisions can have on the compositions of growing planets (see here and here). I study these
processes using a combination of N-body and smoothed particle hydrodynamics
simulations. The goal is to understand how accretion shapes the chemistry of planets:
> How do growing planets acquire their compositions, and why do planetary
systems exhibit a large diversity?
> How do planets become habitable, and why did Earth and Venus acquire such different atmospheres?
> How does the evolution of giant planets affect the growth and evolution of terrestrial planets and asteroids?
> What is the relationship between meteorites and planets?
I am also interested in the final fates of planetary systems, long after their
host star has died and left behind a white dwarf. Observations of polluted white
dwarfs show that they are accreting material similar in composition to
terrestrial planets and asteroids, but it is not fully understood how these remnants
of exoplanetary systems are delivered to the white dwarf (see
this page for more).
See here for a list of my publications.
Image: NASA/JPL-Caltech.
Image: NASA/ESA/STScI.