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86 GHz SiO masers in late-type galactic bulge stars
Published online by Cambridge University Press: 03 August 2017
Abstract
We present 86 GHz (v = 1, J = 2 → 1) SiO maser line observations with the 30-m IRAM telescope of a small sample of late-type stars in the inner Galaxy. The stars were selected on basis of their infrared magnitudes and colors, and our first results show an instantaneous detection rate of ∼65%. The derived SiO maser fluxes and line-of-sight velocities indicate that the stars are located in the Galactic Bulge. The goals of the project are to study the relation between 86 GHz SiO maser emission and infrared properties of the stars, and to enlarge the number of known stellar line-of-sight velocity measurements. Combining the detections with measurements from other surveys (e.g. OH maser surveys) will allow a kinematic analysis of stellar orbits, and probe the dynamics of the inner Galaxy and its probable triaxial mass distribution.
- Type
- Part 2. Stellar Masers
- Information
- Symposium - International Astronomical Union , Volume 206: Cosmic Masers: From Protostars to Blackholes , 2002 , pp. 282 - 285
- Copyright
- Copyright © Astronomical Society of the Pacific 2002