Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...390l..65m&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 390, no. 2, May 10, 1992, p. L65-L68. Research supported by SERC.
Astronomy and Astrophysics
Astrophysics
10
Dark Matter, Faint Objects, Galactic Clusters, Galactic Structure, Gravitational Lenses, Imaging Techniques, Red Shift
Scientific paper
An extensive study of the statistical properties of highly magnified gravitational images of background galaxies produced by clusters of galaxies (generally known as arcs) is undertaken. After summarizing the results obtained from present observations (described in detail elsewhere), techniques are described for observations to improve upon these results, and to obtain further information on the potentials of the lensing clusters and the faint blue galaxies acting as sources. The most important information that can be obtained from the arcs is, with respect to the clusters, on the total density profile and the substructure at the small scales probed by the arcs, and, with respect to the background sources, on their angular sizes and redshifts.
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