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

Journal Article · Wed Jun 01 00:00:00 EDT 1988 · Astron. J.; (United States)

DOI:https://doi.org/10.1086/114758· OSTI ID:6855003

Schneider, D P; Turner, E L; Gunn, J E; Hewitt, J N; Schmidt, M

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. 29 references.

• Research Organization: Institute for Advanced Study, Princeton, NJ (USA); Princeton Univ. Observatory, NJ (USA); Haystack Observatory, Westford, MA (USA); Palomar Observatory, Pasadena, CA (USA)
• OSTI ID: 6855003
• Journal Information: Astron. J.; (United States), Vol. 95
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GRAVITATIONAL LENSES
QUASARS
IMAGES
GALAXY CLUSTERS
GALAXY NUCLEI
RED SHIFT
COSMIC RADIO SOURCES
LENSES
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources
640106 - Astrophysics & Cosmology- Cosmology