Abstract
view Abstract Citations (7) References (8) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS W3(OH): Accurate Relative Positions of Water-Vapor Emission Features Reisz, A. C. ; Shapiro, I. I. ; Moran, J. M. ; Papadopoulos, G. D. ; Burke, B. F. ; Lo, K. Y. ; Schwartz, P. R. Abstract Very-long-baseline interferometric observations made on 1971 March 28 were used to determine the relative angular positions of water-vapor emission features in the radio source W3 (OH) to within 0'!0003 through combined use of fringe-rate and fringe-phase information. Observations on the longest available Earth-based interferometer baselines should yield more than an order of magnitude greater accuracy and would be sensitive, within a year, to transverse (proper) motions of about 1 km s ' between features at the 2.5 kpc distance of W3(OH). Subject headings: infrared sources - molecules, interstellar Publication: The Astrophysical Journal Pub Date: December 1973 DOI: 10.1086/152517 Bibcode: 1973ApJ...186..537R full text sources ADS |
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