Star formation in Carina OB1: Observations of a giant molecular cloud associated with the eta Carinae Nebula

Details Star formation in Carina OB1: Observations of a giant molecular cloud associated with the eta Carinae Nebula Star formation in Carina OB1: Observations of a giant molecular cloud associated with the eta Carinae Nebula

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987nascp2466...67g&link_type=abstract

Star formation in galaxies, Proceedings of a conference at the California Institute of Technology, Pasadena, California, June 16

Computer Science

Interstellar Radiation, Molecular Clouds, Nebulae, Star Formation, Stellar Mass Accretion, Carbon Monoxide, H Ii Regions, Line Spectra, Mapping, Millimeter Waves, Space Observations (From Earth)

Scientific paper

A giant molecular cloud associated with the eta Carinae nebula was fully mapped in CO with the Columbia Millimeter-Wave Telescope at Cerro Tololo. The cloud comples has a mass of roughly 700,000 solar mass and extends about 140 pc along the Galactic plane, with the giant Carina HII region situated at one end of the complex. Clear evidence of interaction between the HII region and the molecular cloud is found in the relative motions of the ionized gas, the molecular gas, and the dust; simple energy and momentum considerations suggest that the HII region is responsible for the observed motion of a cloud fragment. The molecular cloud complex appears to be the parent material of the entire Car OB1 Association which, in addition to the young clusters in the Carine nebula, includes the generally older cluster NGC 3325, NGC 3293, and IC 2581. The overall star formation efficiency in the cloud complex is estimated to be approximately 0.02.

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