The molecular cloud complex associated with ON 1

Details The molecular cloud complex associated with ON 1 The molecular cloud complex associated with ON 1

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...266..580i&link_type=abstract

Astrophysical Journal, Part 1, vol. 266, Mar. 15, 1983, p. 580-595.

Astronomy and Astrophysics

Astrophysics

19

Interstellar Masers, Molecular Clouds, Nebulae, Stellar Evolution, Carbon Monoxide, H Ii Regions, Hydrogen Ions, Molecular Spectra

Scientific paper

Observations of CO with different resolutions near the compact H II region/maser source ON 1 are presented, as well as new H2CO and HCO(+) observations. ON 1 is part of an extended molecular cloud complex with overall dimensions of 25 x 60 pc at a distance of 1.4 kpc; it appears to be the only site of star formation in at least the western part of the complex. ON 1 coincides with a compact and dense molecular cloud core (size 0.8 pc) that shows little sign of disruption indicating that ON 1 has only recently turned on. The isolation and apparent youth of ON 1 suggest that the very beginning of the star formation phase of a molecular cloud complex is observed here.

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