Measurement of Low-Temperature Heat Capacity of Meteorites

摘要: The heat capacity of a meteorite is mass-weighted sum the capacities its component minerals, unlike thermal conductivity or porosity, which are functions fabric meteorite. As such it an independent constraint on mineral composition It has been shown previously [1] that many groups can be categorized by their grain density and magnetic susceptibility; measurement might provide yet another, independent, way determining bulk whole One look for systematic differences between various groups; falls finds; weathered unweathered samples. Meteorite also essential parameter in number modeling techniques interest to planetary scientists, including models asteroids icy bodies expected have significant rocky similar meteorites; evolution small body orbits as function inertia via Yarkovsky YORP effects; meteor brightness initial size speed; parameters used response surfaces impact cratering. To perform measurements suitably large, representative samples across types requires quick non-destructive measuring rocks. Because itself strong temperature, desirable measure over range temperatures.