A comparison of measured spiral arm properties with model predictions

Details A comparison of measured spiral arm properties with model predictions A comparison of measured spiral arm properties with model predictions

Feb 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...253..101k&link_type=abstract

Astrophysical Journal, Part 1, vol. 253, Feb. 1, 1982, p. 101-107. Research supported by the University of Minnesota

Mathematics

Logic

30

Density Wave Model, Galactic Rotation, Galactic Structure, Spiral Galaxies, Stochastic Processes, Hubble Diagram, Pitch (Inclination)

Scientific paper

For both stochastic and density wave theory predictions, crude correlations with observed spiral arm properties are apparent along the Hubble sequence in the case of a sample of morphological property measurements for 17 galaxies. More detailed consideration shows poor agreement for both models, with arm pitch and arm widths being at least as well correlated with galaxy rotational velocities independently of the models, suggesting that the spiral structure trends observed along the Hubble sequence may be kinematic in origin.

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