Inclination and Photometric Properties of Spiral Galaxies

Details Inclination and Photometric Properties of Spiral Galaxies Inclination and Photometric Properties of Spiral Galaxies

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...182.1703b&link_type=abstract

American Astronomical Society, 182nd AAS Meeting, #17.03; Bulletin of the American Astronomical Society, Vol. 25, p.817

Astronomy and Astrophysics

Astronomy

Scientific paper

We present a photometric analysis of I-band CCD image data for 1355 southern spiral galaxies. Accurate structural parameters are combined with maximum rotation velocity and redshift information in order to study the inclination dependence of observed photometric parameters and consequently the opacity of galactic disks. Diameter, total magnitude, central/local surface brightness, and scalelength all show clear indication of inclination dependence. When compared with radiative transfer models, the charateristics of the inclination dependence is consistent with the view that spiral galaxies are optically thin in the outer parts. The overall opacity appears to be rather moderate at most.

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