A Comparison between Anomalous 6-cm H${}_2$CO Absorption and CO(1-0) Emission in the L1204/S140

Monica Ivette Rodriguez, Tommy Wiklind, Ronald J. Allen +2

We report observations of the dust cloud L1204 with the Onsala 25-m telescope in the 6 cm (1${}_{11}-1_{10}$) transition of \htco. The observed region includes the S140 H$\alpha$ arc. Thi…