OH and H I observations of the Perseus OB 2 dust cloud

Details OH and H I observations of the Perseus OB 2 dust cloud OH and H I observations of the Perseus OB 2 dust cloud

Oct 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974a%26a....35..445s&link_type=abstract

Astronomy and Astrophysics, vol. 35, no. 3, Oct. 1974, p. 445-458. Research supported by the Nederlandse Organisatie voor Zuive

Astronomy and Astrophysics

Astronomy

62

Cosmic Dust, H Lines, Hydroxyl Emission, Interstellar Matter, Microwave Emission, Astronomical Maps, Cloud Physics, Emission Spectra, Interstellar Extinction, Radio Astronomy, Stellar Evolution

Scientific paper

The large dust cloud in the region of the association Per OB 2 has been mapped in the 1667-MHz line of OH and in the 21-cm emission line of H I. The distributions of peak antenna temperature and column density of OH correlate well with interstellar extinction. For the H I emission a simple correlation is not present. The velocity fields of OH and H I are similar. The velocities of CH are in good agreement with those of OH. It is concluded that H I, dust, OH, and CH and other molecules are physically associated in one cloud. The kinematics of the dust cloud and of the stellar association seem to be related.

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