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

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.

15 pages, 12 figures, accepted by A&A Journal

References in corpus (8)

• Another bar in the Bulge
• Radio-millimetre investigation of galactic infrared dark clouds
• Mass-Losing Semiregular Variable Stars in Baade's Windows
• Searching for the in-plane Galactic bar and ring in DENIS
• Detections of SiO Masers from the Large-Amplitude Variables in the Galactic Nuclear Disk
• Observations of SiO Maser Sources within a Few Parsec from the Galactic Center
• Relation of SiO maser emission to IR radiation in evolved stars based on the MSX observation
• The bulge luminosity functions in the MSX infrared bands

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• SiO Maser Survey of IRAS Sources in the Inner Galactic Disk
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• SiO Maser Survey of the Large-Amplitude Variables in the Galactic Center
• Testing kinematic distances under a realistic Galactic potential
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• SiO Masers in the Galactic Bulge and Disk: Kinematics from the BAaDE Survey
• Maser Observations of Westerlund 1 and Comprehensive Considerations on Maser Properties of Red Supergiants Associated with Massive Clusters
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• Infrared colours and bolometric corrections of SiO masing stars in the inner Milky Way
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