Asteroid thermophysical modeling

摘要: The field of asteroid thermophysical modeling has experienced an extraordinary growth in the last ten years, as new thermal infrared data became available for hundreds thousands asteroids. emission asteroids depends on body's size, shape, albedo, inertia, roughness and rotational properties. These parameters can therefore be derived by data. Thermophysical led to size estimates that were confirmed at few-percent level later spacecraft visits. We discuss how instrumentation advances now allow mid-infrared interferometric observations well high-accuracy spectro-photometry, posing their own set thermal-modeling challenges.We present major breakthroughs achieved studies a sensitive indicator nature soils, allowing us, instance, determine grain asteroidal regoliths. Thermal inertia also governs non-gravitational effects orbits, requiring precise dynamical studies. radiative heating asteroids, meteoroids, comets from Sun stress surface material; only recently it been recognized significant weathering process. Asteroid space missions with instruments are currently undergoing study all agencies. This will require high sophistication models order analyze high-quality