The Far-ultraviolet Spectra of Tw Hydrae . Ii . Models of H 2 Fluorescence in a Disk 1


We measure the temperature of warm gas at planet-forming radii in the disk around the classical T Tauri star (CTTS) TW Hya by modeling the H2 fluorescence observed in Hubble Space Telescope Space Telescope Imaging Spectrograph and Far Ultraviolet Spectroscopic Explorer spectra. Strong Ly emission irradiates a warm disk surface within 2 AU of the central… (More)

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