IRTF Data Archive Program Information

# # Program information file # PROGRAM_ID 2022B094 PROGRAM_TITLE High resolution spectral survey of RW Aur A PROGRAM_INV1 Sean Brittain PROGRAM_INV2 John Carr PROGRAM_INV3 Casey Lisse PROGRAM_INV4 Joan Najita PROGRAM_INV5 PROGRAM_SCICAT stellar PROGRAM_ABSTRACT_BEG Compelling evidence has emerged of the disruption of planetesimals near the innermost edge of the disk surrounding the classical T Tauri star RW Aur A. While this source has been monitored extensive with SpeX, there is a dearth of high spectral resolution data covering 1-5microns. While the inner ~0.1au part of the disk cannot be resolved spatially, high resolution spectroscopy is a powerful surrogate for spatial resolution. Species emitting in this part of the spectrum [including numerous metal atomic lines, simple molecules, and organic species] will facilitate the determination of the composition of the gas and its origin [outflow, funnel flow, or rotationally supported circumstellar material. The composition will enable the determination of hypothesized parent body giving rise to the excess gas. We propose to obtain nearly complete coverage of the 1-5um spectrum of RW Aur A available from the ground with a SNR~100/resolution element. This will enable the detection of lines 10x weaker than the fundamental CO ro-vibrational species. PROGRAM_ABSTRACT_END