The Arizona Molecular ISM Survey with the SMT: Variations in the CO(2–1)/CO(1–0) Line Ratio across the Galaxy PopulationDOI: info:10.3847/1538-4357/ada361v. 979IOP228
Keenan, Ryan P., Marrone, Daniel P., and Keating, Garrett K. 2025. "The Arizona Molecular ISM Survey with the SMT: Variations in the CO(2–1)/CO(1–0) Line Ratio across the Galaxy Population." The Astrophysical Journal, 979 228. https://doi.org/10.3847/1538-4357/ada361.