Multiwavelength observations of the A1367 OC. Left: A1367 OC – the green contour outlines its X-ray morphology (0.5 − 2 keV XMM observations) overlaid on a Subaru three-color composite image (red, Hα; green, r-band; and blue, g-band). The dashed magenta region shows the MUSE FOV, and the blue circles indicate the IRAM CO(1-0) beams. Image adapted from Ge et al. (2021). The galaxy 2MASX J11443212+2006238 with its 85 kpc long Hα ram pressure stripped tail is visible to the south of the OC. The CO spectra from a pointing centered on this galaxy are shown in the inset. Middle: MUSE Hα image of the OC (Ge et al. 2021) showing the positions of the CO(1-0) and CO(2-1) beams (blue circles, HPBW of 21.7″ ≈ 9.7 kpc and 10.9″ ≈ 4.9 kpc, respectively). The black dashed contours show the peak X-ray emission of the OC. Right: CO(1-0) lines detected at the positions over the northern X-ray peak (top panel) and the southern Hα peak (bottom panel). Velocity corresponds to υ_rad = cz/(z + 1). The corresponding CO(2-1) spectra divided by a factor of 3 are shown with dotted blue lines. In the southern region (bottom panel), a marginal CO(2-1) line detection is suggested from a positive signal at velocities around the CO(1-0) line central velocity.