Observations of gravitational lenses

Details Observations of gravitational lenses Observations of gravitational lenses

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983liaco..24..106w&link_type=abstract

IN: Quasars and gravitational lenses; Proceedings of the Twenty-fourth Liege International Astrophysical Colloquium, Cointe-Ougr

Astronomy and Astrophysics

Astrophysics

2

Astronomical Spectroscopy, Extragalactic Radio Sources, Gravitational Lenses, Quasars, Absorption Spectra, Emission Spectra, Galaxies, Radiant Flux Density, Very Long Base Interferometry

Scientific paper

The observational evidence for the claims of three different studies of multiple imaging of QSOs by gravitational lenses is examined. The three objects studied in the observations include 0957 + 561, 1115 + 080, and 2345 + 007. The principal optical characteristics of each object are analyzed, and the interpretations of the data in each case are discussed. The radio data for the candidate 0957 + 561 are summarized, and compared with model solutions for the physical parameters of a lens. It is concluded that only 0957 + 561 and 1115 + 080 are examples of multiple imaging by a gravitational lens. A table is provided which lists the radio and optical data from a simulated multiple-image QSO with a gravitational lens.

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