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High-resolution CCD imaging and derived gravitational lens models of 2237+0305 (1988)

Gunn, J. E. ; Hewitt, J. N. ; Turner, E. L. ; [et al.]

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Publication Date: 2019-07-12

Description: Images of the gravitational lens 2237+0305 acquired in good seeing have resolved the system into at least five components within the central few arsec of the object: the galaxy nucleus and four point sources in a ringlike formation approximately centered on the galaxy. It is found that the four point sources are distinctly bluer than the galaxy, but that they do not have identical colors. The observed configuration is well reproduced by a simple model that assumes that the four objects are images of the quasar and that the lens is a constant mass-to-light ratio, elliptical, de Vaucouleurs bulge.

Keywords: ASTROPHYSICS

Type: Astronomical Journal (ISSN 0004-6256); 95; 1619-162

Format: text

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