Straight arc in Abell 2390

Details Straight arc in Abell 2390 Straight arc in Abell 2390

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993japa...14..121n&link_type=abstract

Journal of Astrophysics and Astronomy (ISSN 0250-6335), vol. 14, no. 3-4, p. 121-129

Physics

Optics

4

Astronomical Models, Galactic Clusters, Gravitational Lenses, X Ray Astronomy, Caustics (Optics), Morphology, Red Shift, X Ray Sources

Scientific paper

The straight arc in the galaxy-cluster Abell 2390 is investigated in the framework of a gravitational lens model that invokes a single background source galaxy. An extended source galaxy at a redshift of 0.913 is being marginally lensed by the foreground X-ray cluster of galaxies at a redshift of 0.231. It is demonstrated that a single lensed galaxy lying on or very near to the lip caustic of the cluster lens is capable of reproducing the linear morphology with the observed breaks.

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