Effect of the gravitational field of the Galaxy on the apparent position, brightness and spatial density of remote radiation sources. II. Variations of the brightness and spatial density of sources.

Details Effect of the gravitational field of the Galaxy on the apparent position, brightness and spatial density of remote radiation sources. II. Variations of the brightness and spatial density of sources. Effect of the gravitational field of the Galaxy on the apparent position, brightness and spatial density of remote radiation sources. II. Variations of the brightness and spatial density of sources.

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990kfnt....6...60m&link_type=abstract

Kinematika Fiz. Nebesn. Tel, Tom 6, No. 6, p. 60 - 64

Computer Science

Galaxy: Gravitational Lenses, Galaxy: Gravitational Field, Extragalactic Objects: Positions

Scientific paper

The effect of the Galaxy's gravitational field on the brightness and spatial density of extragalacitc discrete sources is analysed. As has been found for a two-component model of mass distribution involving a disk and a spherical component, the gravitational field of the disk leads to small increase in the apparent brightness (≡10-5), while reducing the spatial density of sources (≡10-5) within a strip of nearly 15° about the Galactic plane. Among possible spherical components (like a bulge, a halo or a corona), the bulge is the most efficient. Its gravitational field increases the brightness of sources (≡10-6), and reduces their density in the direction of the Galactic center.

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