Observations of V838 Mon and the nearby region in the CO J = 1-0, 2-1 and 3-2 transitions

T. Kaminski; M. Miller; R. Szczerba; R. Tylenda

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Observations of V838 Mon and the nearby region in the CO J = 1-0, 2-1 and 3-2 transitions

T. Kaminski·M. Miller·R. Szczerba·R. Tylenda

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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 V_lsr=53.3 km/s and V_lsr=-11.0 km/s. Their origin is unclear. We also shortly discuss results of the observations of the vicinity of V838 Mon.

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T. Kaminski, M. Miller, R. Szczerba, R. Tylenda. 2006-06-16. Observations of V838 Mon and the nearby region in the CO J = 1-0, 2-1 and 3-2 transitions. https://arxiv.org/abs/astro-ph/0606402

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