# # Program information file # PROGRAM_ID 2023B073 PROGRAM_TITLE SpeX Time Domain Observations of the RW Aur A Planet Forming T-Tauri System Over 1 Stellar Rotation PROGRAM_INV1 Carey Lisse PROGRAM_INV2 Mike Sitko PROGRAM_INV3 Scott Wolk PROGRAM_INV4 Sean Brittain PROGRAM_INV5 Josh Lovell PROGRAM_SCICAT stellar PROGRAM_ABSTRACT_BEG A 3 full-night SpeX study of the highly variable CTTS RWAurA is requested, following up on recent SpeX time domain 2006 - 2020 FeII results suggesting the possible formation, migration, & accretive destruction of differentiated planetesimals in a highly excited system, coupled with marked thermal emission variability from the system's asymmetric, puffed-up accretion disk. By spectrally characterizing the system's variability over 1 full protostar period, new details of its inner accretion disk structure will be obtained. It is crucial that this developing, ~3 Myr old solar system be further characterized as a potential natural laboratory for early solar system formation. PROGRAM_ABSTRACT_END