The Cygnus X region. IX - On the hydrogen content of the Cygnus OB 2 association

Details The Cygnus X region. IX - On the hydrogen content of the Cygnus OB 2 association The Cygnus X region. IX - On the hydrogen content of the Cygnus OB 2 association

Jun 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....58..197h&link_type=abstract

Astronomy and Astrophysics, vol. 58, no. 1-2, June 1977, p. 197-199. Deutsche Forschungsgemeinschaft

Astronomy and Astrophysics

Astronomy

15

B Stars, Interstellar Gas, Microwave Emission, O Stars, Radio Sources (Astronomy), Continuous Radiation, Cosmic Dust, H Ii Regions, Interstellar Matter, Lyman Spectra

Scientific paper

A search for radio continuum emission at 15 GHz revealed no compact H II region inside the Cyg OB 2 association. We argue that neutral or molecular hydrogen cannot be present inside the association. A large H II region observed as a background component is suggested as the sink for the large amount of Lyman Continuum photons. The gas seems to be depleted relative to dust inside the association.

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