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  • HIGH-RESOLUTION ULTRAVIOLET...
    France, Kevin; Schindhelm, Eric; Bergin, Edwin A; Roueff, Evelyne; Abgrall, Herve

    The Astrophysical journal, 04/2014, Letnik: 784, Številka: 2
    Journal Article

    The far-ultraviolet (FUV; 912-1700 A) radiation field from accreting central stars in classical T Tauri systems influences the disk chemistry during the period of giant planet formation. In this work, we present a high-resolution spectroscopic study of the FUV radiation fields of 16T Tauri stars whose dust disks display a range of evolutionary states. We include reconstructed Lyalpha line profiles and remove atomic and molecular disk emission (from H sub(2) and CO fluorescence) to provide robust measurements of both the FUV continuum and hot gas lines (e.g., Lyaalpha, N V, C IV, He II) for an appreciable sample of T Tauri stars for the first time. We find that the flux of the typical classical T Tauri star FUV radiation field at 1 AU from the central star is ~10 super(7) times the average interstellar radiation field. The total and component-level high-resolution radiation fields are made publicly available in machine-readable format.