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Formaldehyde Abundances in the Dense Molecular Cores DR 21 and W 3(OH)
Published online by Cambridge University Press: 04 August 2017
Abstract
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Formaldehyde absorption has been observed with the Very Large Array in both the 6 cm and 2 cm transitions towards a number of ultracompact HII regions which are embedded in the dense cores of molecular clouds. Such data have been compared with the results of radiative transfer calculations to derive the distributions of the molecular hydrogen density and of the abundance of formaldehyde relative to molecular hydrogen. Results are presented for the sources DR 21 and W 3(OH).
- Type
- Interstellar Medium
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- Copyright © Reidel 1987
References
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