The SO 2₃ - 1₂ emission in orion A

Phillips, J. P. and White, Glenn J. (1982). The SO 2₃ - 1₂ emission in orion A. In: Scientific Importance of Submillimetre Observations, 03-04 Dec 1981, Leiden, pp. 33–36.



Orion A is one of the nearest and best studied regions of star formation, the strongest CO source so far detected, and a particularly fruitful region in the search for new and ever more exotic molecules. A stellar wind, with genesis in some newly formed or forming star, is being power driven into a surrounding placental cloud. The resulting shocks lead to densities of order 1 x 106 1cm-3 or higher, and gas kinetic temperatures T ~ 2000 K, causing excitation of H2 quadrupole emission in the near infrared and the higher rotational transitions of CO in the far-infrared.

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