# # Program information file # PROGRAM_ID 2022B040 PROGRAM_TITLE An iSHELL survey of M-band CO spectra from Protoplanetary Disks PROGRAM_INV1 Andrea Banzatti PROGRAM_INV2 Kirsten Abernathy PROGRAM_INV3 Sean Brittain PROGRAM_INV4 Josh Kern PROGRAM_INV5 Adwin Boogert PROGRAM_SCICAT extra-solar planets PROGRAM_ABSTRACT_BEG We propose a magnitude-limited survey of CO gas in Protoplanetary Disks observable with iSHELL from Mauna Kea [down to M~5.5 mag], to provide a high-quality spectral database with strong and lasting value to the community. We use iSHELL with its high-resolution slits [0.375' and 0.75'] to cover M band [4.52-5.25 um] emission from inner disk CO gas in targets visible in this semester. This program complements data that has already been obtained with iSHELL in previous semesters towards building a total sample of ~100 disks, and will provide a spectrally-complete, homogeneous dataset at high spectral resolution and high signal-to-noise. The survey science-ready spectra are available to the community on www.spexodisks.com within 1 month of observation. This dataset is enabling multiple investigations crossing fields of disks, winds, and exoplanets, to study the structure, kinematics, chemistry, and evolution of the inner 10 au in Protoplanetary Disks around stars of mass > 0.5 Msol. This program complements and supports extensive campaigns that are observing disks at optical, infrared, and millimeter wavelengths, including upcoming infrared spectra from JWST in Cycle 1. PROGRAM_ABSTRACT_END