Back to Volume
Paper: Observational evidence for dust growth in proto-planetary discs
Volume: 414, Cosmic Dust—Near and Far
Page: 99
Authors: Meeus, G.
Abstract: he dust in the interstellar medium, that provides the material for forming stars—and circumstellar discs as a natural by-product—is known to have submicron sizes. As these discs are the sites of planet formation, those small grains are predicted to grow to larger entities when the stars are still young. I will review evidence for the first steps in grain growth in proto-planetary discs around young stars, based on recent Spitzer and ground-based infrared observations. First, I will discuss disc and dust properties in Herbig Ae/Be stars, and then move to the lower-mass T Tauri stars and the brown dwarfs. Here, objects of different star-forming regions are compared, and the influence of the stellar parameters and environment on dust evolution, as witnessed by the observed dust characteristics, is discussed.
Back to Volume