Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982mnras.201..209n&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 201, Oct. 1982, p. 209-222.
Astronomy and Astrophysics
Astronomy
36
Interferometry, Interstellar Masers, Line Spectra, Protostars, Stellar Evolution, Data Reduction, H Ii Regions, Hydroxyl Emission, Shock Waves, Spectrum Analysis, Star Clusters
Scientific paper
The results of the first spectral line observations made with the Jodrell Bank Multi-Element Radio-Linked Interferometer Network (MERLIN) are presented. The operation of MERLIN in its spectral line mode and the procedures used to analyse the data are described. The OH maser source W3OH has been observed at three ground-state transition frequencies, and the previous results on this source have been extended significantly. In contrast with previous interpretations, it is found that the masers are probably not directly associated with the compact H II region but instead are situated in clusters some of which are well separated from the H II region. It is suggested that these clusters represent protostars whose formation was triggered by the shock wave associated with the compact H II region.
Booth Roy S.
Diamond Phil J.
Norris Ray P.
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