Other
Scientific paper
Dec 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995azh....72..811k&link_type=abstract
Astronomicheskij Zhurnal, vol. 72, p. 811
Other
6
Disk Galaxies, Statistical Correlation, Galactic Mass, Cosmic Dust, Gas Composition, Galactic Evolution, Surface Properties, Luminosity, Correlation Coefficients
Scientific paper
Statistical relationships between principal galaxy parameters and surface densities of these parameters are analyzed for a sample of 63 disk galaxies. These parameters include the radius, the mass of the entire galaxy and its various components (H2, HI, total gas, dust, etc.), and blue and FIR luminosity. Of all possible two- and three-parameter linear relations between the galaxy parameter logarithms, we choose those that have high correlation coefficients and proceed to derive their coefficients. Some of these relations are compared with the corresponding predictions of the single-zone model of the disk galaxy evolution. Other relations are considered from the viewpoint of interstellar medium properties in galaxies. We find the theory to agree satisfactorily with observations and suggest ways of improving evolutionary models. The method of linear orthogonal regression used in the statistical analysis is described.
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