Positions of the SiO masers in Orion-KL: Anisotropy on a scale of 70 AU
Journal Article
·
· Astrophys. J., Lett. Ed.; (United States)
Using the Hat Creek interferometer, we have measured the positions of the -5 km s/sup -1/ and +16 km s/sup -1/ features in the spectrum of the v = 1, J = 2--1 SiO maser (..nu.. = 86.243 GHz) in Orion-KL. The mean position of the two features, measured relative to a set of reference quasars, is ..cap alpha..(1950) = 5/sup h/32/sup m/47./sup s/023 +- 0./sup s/005, delta(1950) = -5/sup 0/24'23.''65 +- 0.''15. This position lies within the error bars of the best infrared measurements of the position of the infrared source IRc2.
- Research Organization:
- Radio Astronomy Lab, University of California, Berkeley, CA
- OSTI ID:
- 5983805
- Journal Information:
- Astrophys. J., Lett. Ed.; (United States), Journal Name: Astrophys. J., Lett. Ed.; (United States) Vol. 267:2; ISSN AJLEA
- Country of Publication:
- United States
- Language:
- English
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