A 10-GHz radio continuum survey of the galactic plane region. I. A complex region at l = 21°-26°.

The results of a 10-GHz radio continuum survey of the galactic plane region using the 45-m telescope at Nobeyama, Japan, are presented. Specific attention is given to the study of the complex region at 1 = 21-26 deg, where /b/ is not greater than 1 deg. In the complex region, the following features were found: a crab-like SNRs (G24.7 + 0.6) which shows an irregular morphology with a filled center and a peak flux of between 5 and 10 GHz; H II rings of 50 and 40 arcmin diameter, respectively; and and a number of weak nonthermal sources near the galactic plane which appear in comparison with the Bonn 5-GHz survey. The possible origins of the sources are discussed.