The ALMaQUEST Survey. VIII. What causes the discrepancy in the velocity between the CO and H alpha rotation curves in galaxies?

We compare the CO(1-0) and Hα kinematics in 34 nearby galaxies, selected from the ALMaQUEST and EDGE-CALIFA surveys. We use 3D-Barolo, a 3D tilted-ring model, to derive the CO and Hα rotation curves. Before comparing rotation curves in the 34 nearby galaxies, we found systematics...

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Bibliographic Details
Main Authors: Su, Y-C, Lin, L, Pan, H-A, Coba, CL, Hsieh, B-C, Sanchez, SF, Thorp, MD, Bureau, M, Ellison, SL
Format: Journal article
Language:English
Published: American Astronomical Society 2022