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Sublimation temperature of circumstellar dust particles and its importance for dust ring formation

Kimura, Hiroshi; Müller, Sebastian; Kobayashi, Hiroshi +2 more

Dust particles in orbit around a star drift toward the central star by the Poynting-Robertson effect and pile up by sublimation. We analytically derive the pile-up magnitude, adopting a simple model for optical cross sections. As a result, we find that the sublimation temperature of drifting dust particles plays the most important role in the pile…