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Detection of Near-infrared Water Ice at the Surface of the (Pre)Transitional Disk of AB Aur: Informing Icy Grain Abundance, Composition, and Size

Pinte, C.; Ménard, F.; Duchêne, G. +17 more

We present near-infrared Large Binocular Telescope LMIRCam imagery of the disk around the Herbig Ae/Be star AB Aurigae. A comparison of the surface brightness at K _s (2.16 µm), H₂O narrowband (3.08 µm), and $L^{\prime} $ (3.7 µm) allows us to probe the presence of icy grains in this (pre)transitional disk …