Observations of V838 Mon and the Nearby Region in the CO J = 1->0, 2->1 and 3->2 Transitions.,
Kaminski, T.; Miller, M.; Szczerba, R.; Tylenda, R.,
2007, In The Nature of V838 Mon and its Light Echo ASP Conference Series, Vol. 324, Edited by Romano, L. M. Corradi and Ulisse Munari., p.103

Abstract:
We present observations of V838 Mon and its close vicinity in the three lowest rotational transitions of CO. The J = 2->1 and 3->2 data were obtained using the 3 m KOSMA telescope. They include on-the-fly maps covering a large area (~3.4 sq. deg) around V838 Mon and long integrations on the star position. Complementary observations in the CO J = 1->0 transition were obtained using the 13.7 m Delingha telescope. The star position as well as 25 other points preselected in the near vicinity of the object have been measured in this transition. We report on a detection of two narrow emission components in J = 2->1 and 3->2 transitions at the position of V838 Mon. Lines were found at radial velocities of Vlsr=53.3 km s-1 and Vlsr=-11.0 km s-1. Their origin is unclear. We also briefly discuss results of the observations of the vicinity of V838 Mon.

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