Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984ap%26ss.103...39g&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 103, no. 1, Aug. 1984, p. 39-54.
Astronomy and Astrophysics
Astrophysics
3
Astronomical Photometry, Galactic Structure, Brightness, Cosmic Dust, Luminosity, Milky Way Galaxy
Scientific paper
The analysis of triaxial, coaxial ellipsoids with different intrinsic axial ratios initiated in a previous paper is extended here, introducing an intrinsic distribution of light for each shell. The general properties of this model are studied, considering the analytical solutions for the projection along a line-of-sight in three theoretical cases: (1) dust-free systems; (2) dusty systems; and (3) luminous gaseous shells. The first case is then extended in order to predict some observable consequences. The observed properties of both an exponential and a power-law luminosity profile are compared with those of triaxial and axisymmetric systems. In addition, the variation of the central surface brightness and of the isophotal flattening at a fixed level with respect to the inclination of the Galaxy are analyzed.
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