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| Paper: |
Bulge Asymmetries and Dynamic Evolution (BAaDE) |
| Volume: |
497, Why Galaxies Care about AGB Stars III: A Closer Look in Space and Time |
| Page: |
499 |
| Authors: |
Sjouwerman, L. O.; Pihlström, Y. M.; Claussen, M. J.; BAaDE Collaboration |
| Abstract: |
We have initiated the largest-ever survey of red giant SiO maser
sources in the Galactic bulge and inner Galaxy. The SiO maser
transitions at 43 and 86 GHz are not hindered by extinction, and yield
extremely accurate stellar line-of-sight velocities (<1
km s-1) and positions. The detection of up to ∼20,000 red
giant SiO maser sources will yield numbers comparable to optical
surveys, with the additional strength of a much more thorough coverage
of the highly obscured inner Galaxy. The sample is sufficient to trace
complex Galactic structures and minority populations and yield luminous
SiO masers suitable for follow-up orbit and parallax determination
using VLBI. |
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