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86 GHz SiO maser survey of late-type stars in the Inner Galaxy. I. Observational data

M. Messineo·H. J. Habing·L. O. Sjouwerman·A. Omont·K. M. Menten
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Abstract

We present 86 GHz (v = 1, J = 2 -1) SiO maser line observations with the IRAM 30-m telescope of a sample of 441 late-type stars in the Inner Galaxy (-4 degr < l < +30 degr). These stars were selected on basis of their infrared magnitudes and colours from the ISOGAL and MSX catalogues. SiO maser emission was detected in 271 sources, and their line-of-sight velocities indicate that the stars are located in the Inner Galaxy. These new detections double the number of line-of-sight velocities available from previous SiO and OH maser observations in the area covered by our survey and are, together with other samples of e.g. OH/IR stars, useful for kinematic studies of the central parts of the Galaxy.

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M. Messineo, H. J. Habing, L. O. Sjouwerman, A. Omont, K. M. Menten. 2002-07-12. 86 GHz SiO maser survey of late-type stars in the Inner Galaxy. I. Observational data. https://doi.org/10.1051/0004-6361%3A20021017

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