The gravitational lens effect of the Virgo Supercluster

Details The gravitational lens effect of the Virgo Supercluster The gravitational lens effect of the Virgo Supercluster

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...220...30x&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 220, no. 1-2, Aug. 1989, p. 30-34. Research supported by the National Natural

Astronomy and Astrophysics

Astrophysics

Gravitational Lenses, Relativity, Virgo Galactic Cluster, Gravitational Effects, Harmonic Analysis

Scientific paper

The gravitational lens effect of the Virgo Supercluster has been modeled by an axisymmetric homogeneous ellipsoid. Numerical integration of the null geodesics was performed in order to determine the variation in the angular position and the brightness amplification ratio (K) of distant sources. It is shown that the maximum angular displacement, about 8 arcsec, occurs near the Supergalactic poles, and that the maximum variation of K with respect to unity, about 0.0003, occurs in the direction of Virgo and corresponds to a negative amplification. The large-scale distribution of K in the celestial sphere is found to be expanded in spherical harmonics.

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