High resolution spectra of some strong galactic OH emission sources

Details High resolution spectra of some strong galactic OH emission sources High resolution spectra of some strong galactic OH emission sources

Dec 1972

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1972rleos.101.....r&link_type=abstract

Res. Lab. Electron. Onsala Space Obs., Res. Rep., No. 101, 1+44 p.

Astronomy and Astrophysics

Astronomy

Emission Spectra, Hydroxyl Emission, Radio Sources (Astronomy), Galactic Radio Waves, Line Spectra, Radio Telescopes

Scientific paper

The 84-foot (25.6 m) radio telescope of the Onsala Space Observatory was used for detailed examinations with 250 Hz resolution of the 18 - cm spectral line emission from strong OH sources. Models obtained by incoherent superposition of circularly polarized Gaussian features were fitted to the spectra. The observations were compared with earlier measurements for evidence of variabilities and of possible correlation between changes in intensity and line-width. An intensity change by a factor of seven over a week was observed in one component of the right circularly polarized emission of W75B at 1665 MHz.

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