A study of the molecular complexes accompanying MON OB1 MON OB2 and CMA OB1

Details A study of the molecular complexes accompanying MON OB1 MON OB2 and CMA OB1 A study of the molecular complexes accompanying MON OB1 MON OB2 and CMA OB1

May 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979phdt.........4b&link_type=abstract

Ph.D. Thesis Columbia Univ., New York, NY.

Computer Science

11

Galaxies, Intergalactic Media, Interstellar Gas, Molecular Gases, Molecules, Star Clusters, Nebulae, Plasma Clouds, Stellar Evolution, Stellar Mass Accretion

Scientific paper

All three complexes are shown to be extended along the galactic plane with a longest extent which ranges from 88 pc for the Mon OB1 complex to 99 pc for the Mon OB2 complex. The complexes all appear to have well defined boundaries; extrapolation of the data to zero intensity indicates that the projected area of each complex is probably no more than approximately 40% to 50% larger than what is observed. The observations of all the molecular complexes mapped to date are used to calculate the number of OB associations in the Galaxy (4000). It is argued that the OB molecular complexes are the nucleation sites for nearly all of the massive star formation in the Galaxy, and that the number of giant molecular complexes does not greatly exceed the number of OB associations.

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