Mapping Physical Parameters in Orion KL at High Spatial Resolution

The Orion Kleinmann-Low nebula (Orion KL) is notoriously complex and exhibits a range of physical chemical components. We conducted high angular resolution (sub-arcsecond) observations $^13$CH$_{3}$OH $\nu=0$ ($\sim$0.3$^{\prime\prime}$ $\sim$0.7$^{\prime\prime}$) CH$_3$CN $\nu_8=1$ ($\sim$0.2$^{\prime\prime}$ $\sim$0.9$^{\prime\prime}$) line emission with the Atacama Large Millimeter/submillimeter Array (ALMA) to investigate KL's structure on small spatial scales (${\le}350$ au). Gas kinematics, excitation temperatures, column densities were derived from molecular via pixel-by-pixel spectral fitting image cubes, enabling us examine small-scale variation these parameters. Sub-regions Hot Core have higher temperature in 0.2$^{\prime\prime}$ beam than 0.9$^{\prime\prime}$ beam, indicative possible internal sources heating. Furthermore, velocity field includes bipolar ${\sim}7{-}8$ km s$^{-1}$ feature southeast-northwest orientation against surrounding ${\sim}4{-}5$ field, which may be due an outflow. also find evidence source heating toward Northwest Clump, since there smaller versus larger beam. Finally, region southwest (Hot Core-SW) presents itself as particularly heterogeneous bridging Compact Ridge. Additional studies identify (hidden) luminosity within KL are necessary better understand its chemistry.