OH absorption in the source W 22

Details OH absorption in the source W 22 OH absorption in the source W 22

Oct 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974azh....51..912s&link_type=abstract

Astronomicheskii Zhurnal, vol. 51, Sept.-Oct. 1974, p. 912-915. In Russian.

Astronomy and Astrophysics

Astronomy

Absorption Spectra, Hydroxyl Emission, Interstellar Matter, Nebulae, Radio Sources (Astronomy), Thermal Emission, Brightness Temperature, Cosmic Dust, H Ii Regions, Line Spectra, Optical Thickness, Radial Velocity

Scientific paper

OH absorption in the source W 22 is caused by three separate clouds with radial velocities of 5.9, -4.5, and -11 km/sec. The two clouds with negative radial velocities are comparable in size with the H II regions G 353.1+0.6 and G 353.2+0.9 and are situated close to these regions, coinciding with dark, absorbing clouds. The cloud with the positive radial velocity has the largest angular dimensions and is located at the smallest kinematic distance, probably coincident with a spiral arm.

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