The size spectrum of molecular clouds in the outer Galaxy

Details The size spectrum of molecular clouds in the outer Galaxy The size spectrum of molecular clouds in the outer Galaxy

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...308..357t&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 308, Sept. 1, 1986, p. 357-369.

Astronomy and Astrophysics

Astrophysics

23

Galactic Structure, Milky Way Galaxy, Molecular Clouds, Size Distribution, Astronomical Models, Interstellar Matter, Mass Distribution

Scientific paper

The authors present a technique for determining the molecular cloud size spectrum that corrects for incompleteness in the observational data. They apply the method to a survey of molecular clouds in the outer Galaxy that used the J = 1-0 spectral line of 12CO. The fields observed were near the Galactic positions l = 125°, b = 2° and l = 220°, b = -2°. A total of 16 molecular clouds ranging from 2 to 45 pc in size were detected. Models that correct for the incompleteness of the survey are compared with the molecular cloud data. The best-fitting size spectrum is determined by using the maximum likelihood method, while the reliability of the fit is estimated by using the Kolmogorov-Smirnov small-number statistic.

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