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Near‐Infrared and the Inner Regions of Protoplanetary Disks
We examine the "puffed-up inner disk" model (Dullemond, Dominik & Natta 2001), proposed for explaining the near-IR excess radiation from Herbig Ae/Be stars. Detailed model computations show that the observed near-IR excess requires more hot dust than is contained in the puffed-up disk rim. The rim can produce the observed near-IR excess only if its dust has perfectly gray opacity, but such dust is in conflict with the observed 10μm spectral feature. We find that a compact (∼ 10 AU) tenuous (τ_Vdoi:10.1086/497895 fatcat:adcubycjpfb25c2y72gkxiwgji