The mean lifetime of interstellar molecular clouds |
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| Authors: | HS Liszt WB Burton |
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| Institution: | Purple Mountain Observatory, China;National Radio Astronomy Observatory, U.S.A.;Department of Astronomy, University of Leidan, The Netherlands |
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| Abstract: | We describe the results of a study of the mean lifetime of molecular clouds based on actual observations. Using the model of growth from cloud-cloud collision and observations of 13CO along the galactic equator between longitudes 27°.85 and 40°, we derive a lower limit of 1 × 109 yr for the lifetime of the interstellar molecular clouds |
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