Spatial and spectral variation of the 12CO(J=2-1)/12CO(J=1-0) line ratio in nearby galaxies

Shinya Komugi
Kogakuin University of Technology & Engineering
We present 12CO(J = 1 – 0) mapping observations over ∼1/2 of the optical disk of 12 nearby galaxies from the Fundamental CO 1–0 Transition Survey of nearby galaxies (FACTS), using the ALMA Total Power array. Variations in the 12CO(J = 2 − 1)/12CO(J = 1 − 0) line ratio...