Constraining Resolved Extragalactic R21 Variation with Well-calibrated ALMA Observations

CO(1–0) and CO(2–1) are commonly used as bulk molecular gas tracers. The CO line ratios (especially CO(2–1)/CO(1–0)– R _21 ) vary within and among galaxies, yet previous studies on R _21 and alike often rely on measurements constructed by combining data from facilities with substantial relative cali...

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Autors principals:	Jakob den Brok, Elias K. Oakes, Adam K. Leroy, Eric W. Koch, Antonio Usero, Erik W. Rosolowsky, Frank Bigiel, Jiayi Sun, Hao He, Ashley T. Barnes, Yixian Cao, Fu-Heng Liang, Hsi-An Pan, Toshiki Saito, Sumit K. Sarbadhicary, Thomas G. Williams
Format:	Artigo
Idioma:	Inglês
Publicat:	IOP Publishing 2025-01-01
Col·lecció:	The Astrophysical Journal
Matèries:	Interstellar medium Spiral galaxies Molecular gas Millimeter-wave spectroscopy Radio interferometry
Accés en línia:	https://doi.org/10.3847/1538-4357/addf4c
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