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Orion-KL is a well known high mass star forming region that has long been thetarget of spectral line surveys and searches for complex molecules. Onespectral window where the region had never been surveyed is around wavelengthsof $\lambda$=1 cm. This is an important window to observe due to thefundamental and low energy transitions of numerous complex molecules thatindicate the maximum spatial extent of the molecular species; knowing thespatial distribution of a molecule aids in determining the formationmechanism(s) of that molecule. Additionally, there are fewer transitions inthis window, reducing confusion caused by blended lines that can be veryproblematic at shorter wavelengths ($\lambda<$3 mm). In this work, we presentthe first spectral line survey at $\lambda$=1 cm of the Orion-KL region. Atotal of 89 transitions were detected from 14 molecular species andisotopologues and two atomic species. The observations were conducted with theCombined Array for Research in Millimeter-wave Astronomy in bothinterferometric and single dish modes.

CARMA $\lambda$ = 1 cm Spectral Line Survey of Orion-KL