Mapping out the time-evolution of exoplanet processes

21 Mar 2019  ·  Christiansen Jessie L., Beichman Charles, Ciardi David R., Huber Daniel, Marley Mark S. ·

There are many competing theories and models describing the formation, migration and evolution of exoplanet systems. As both the precision with which we can characterize exoplanets and their host stars, and the number of systems for which we can make such a characterization increase, we begin to see pathways forward for validating these theories... In this white paper we identify predicted, observable correlations that are accessible in the near future, particularly trends in exoplanet populations, radii, orbits and atmospheres with host star age. By compiling a statistically significant sample of well-characterized exoplanets with precisely measured ages, we should be able to begin identifying the dominant processes governing the time-evolution of exoplanet systems. read more

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Earth and Planetary Astrophysics Solar and Stellar Astrophysics