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 Title: 

    Spectroscopy of the Gaseous Inner Disk

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 Authors:
 

    J. Carr, NRL

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Abstract:

Recent spectroscopic observations of the gaseous component in the inner several AU of young circumstellar disks will be discussed. Several examples will be provided to illustrate how infrared and UV spectroscopy can be used to study the physical, thermal, and chemical structure of the inner disk. Topics to be covered will include: the inner gas truncation radii of disks, the relative chemical abundances of molecules, thermal structure of the gas atmosphere, gas dynamics and turbulence, and the ability to trace gas in optically thin disk gaps.

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