Abstract
The advent of more precise measurements of distance estimates for some objects (Bayesian estimates for filaments, trigonometric estimates for masers) permits a better comparison of their relative locations, and a comparison with a most recent spiral arm model fitted to the diffuse CO 1-0 gas. Our results support the idea that some ‘bone-like’ filaments, greater than 10 pc (labeled elsewhere as ‘bones’, ‘mst’, ‘herschel’) and smaller than 100 pc, are observed near the potential minimum of the Scutum spiral arm (bone-like filaments are offset outward from masers by about 200 pc).
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The figure production made use of the PGPLOT software at NRC Canada in Victoria. I thank an anonymous referee for useful, careful, and historical suggestions.
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Vallée, J.P. Spatial offsets between interstellar bone-like filaments, radio masers, and cold diffuse CO gas, in the Scutum spiral arm. Astrophys Space Sci 364, 150 (2019). https://doi.org/10.1007/s10509-019-3639-4
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DOI: https://doi.org/10.1007/s10509-019-3639-4