New OH sources at 1612 MHz

Details New OH sources at 1612 MHz New OH sources at 1612 MHz

Nov 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974a%26a....36..225k&link_type=abstract

Astronomy and Astrophysics, vol. 36, no. 2, Nov. 1974, p. 225-229.

Astronomy and Astrophysics

Astronomy

28

Hydroxyl Emission, Infrared Stars, M Stars, Microwave Emission, Radio Sources (Astronomy), Variable Stars, Galactic Radio Waves, Galactic Structure, Infrared Radiation, Radio Observation

Scientific paper

Seven new OH sources have been discovered during a search out of the galactic plane for 1612-MHz emitters which might be OH/IR stars. Most of the sources have 1612-MHz characteristics of OH/IR stars but no obvious optical or infrared counterparts. It is suggested that such sources are distant long-period variables since the velocity separations of the 1612-MHz components of the sources are similar to those of OH-emitters identified as long-period variables. The present results indicate that future OH surveys should not be confined only to the galactic plane or to observations of bright infrared sources.

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