Images of the gravitational lens 2237+0305 acquired in good seeing (FWHM ≤1arcsec) resolve the system into several components. At least five components reside in the central few arcseconds of the object: the nucleus of the galaxy (lens) and four point sources in a ringlike formation approximately centered on the galaxy. The diameter of this "ring" is ≈1.7arcsec. The four point sources are all distinctly bluer than the galaxy, but do not have identical colors. A simple model that assumes that these four objects are indeed images of the quasar and treats the lens as a constant mass-to-light ratio, elliptical, de Vaucouleurs bulge reproduces the observed configuration remarkably well.
|Original language||English (US)|
|State||Published - Jun 1 1988|