A complete CO survey of the Large Magellanic Cloud
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Abstract
view Abstract Citations (325) References (16) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A Complete Survey of the Large Magellanic Cloud Cohen, R. S. ; Dame, T. M. ; Garay, G. ; Montani, J. ; Rubio, M. ; Thaddeus, P. Abstract The central 6^deg^ x 6^deg^ of the LMC have been fully surveyed at an angular resolution of 8.8' in the J = 1-0 rotational transition of CO. At least 10% of the region studied exhibits CO line emission, with peak line temperatures of order 0.15 K. The emission is dominated by an extremely large complex of molecular clouds extending south from 30 Dor for nearly 2400 pc. In the vicinity of 30 Dordus itself there is an extended high-velocity CO component, presumably molecular material accelerated by stellar winds, supernovae, or both. Positions, masses, other physical characteristics, and related objects at other wavelengths are given for the 40 molecular clouds identified. The general correspondence of these clouds to other Population I is extremely close. The clouds follow a relation between CO luminosity and linewidth similar to that of Galactic clouds, but, for a given line width appear ~6 times fainter, suggesting that CO luminosity scales roughly with metallicity or gas-to-dust ratio. The total mass of molecular clouds in the LMC is estimated to be 1.4 x 10^8^ M_sun_ implying a ratio of molecular to atomic mass over the survey region of ~30%. Publication: The Astrophysical Journal Pub Date: August 1988 DOI: 10.1086/185243 Bibcode: 1988ApJ...331L..95C Keywords: Carbon Monoxide; H Ii Regions; Magellanic Clouds; Molecular Clouds; Sky Surveys (Astronomy); Angular Resolution; Line Spectra; Molecular Rotation; Stellar Winds; Supernovae; Astrophysics; GALAXIES: MAGELLANIC CLOUDS; INTERSTELLAR: MOLECULES full text sources ADS | data products SIMBAD (60) NED (2)