Near-Infrared AO Spectroscopy of Edge-On Protoplanetary Disks with Subaru IRCS

Physics – Optics

Scientific paper

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Scientific paper

We carried out near infrared (1.4-4.2 μm) AO imaging and spectroscopy of two edge-on protoplanetary disks; HK TauB and HV TauC located in Taurus molecular cloud. We found a deep H2O Ice absorption (τ~ 1.1, 1.3) for both disks, which might be attributed to cometary dust in the early stage. The resolved images show gradient of the H-K and K-L' color in the vertical direction to the disk, which is supposed to be due to the dust extinction in the protoplanetary disks.

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