The triple quasar Q1115+080A, B, C - A quintuple gravitational lens image

Details The triple quasar Q1115+080A, B, C - A quintuple gravitational lens image The triple quasar Q1115+080A, B, C - A quintuple gravitational lens image

Mar 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...244..723y&link_type=abstract

Astrophysical Journal, Part 1, vol. 244, Mar. 15, 1981, p. 723-735.

Astronomy and Astrophysics

Astrophysics

67

Emission Spectra, Galactic Clusters, Gravitational Lenses, Line Spectra, Quasars, Spectrum Analysis, Astronomical Photometry, Astronomical Spectroscopy, Carbon, Charge Coupled Devices, Forbidden Bands, Images, Red Shift, Spiral Galaxies

Scientific paper

Spectroscopy and direct imaging of Q1115+080A, B, C with a CCD camera support the hypothesis that they are gravitational images of a single object. Spectroscopy of the semiforbidden C III 1909-A emission line shows all the images to have identical spectra and redshifts (to within 100 km/s), except that B is slightly redder. Gravitational lens imaging by a massive spiral galaxy is investigated, and a quintuple image model resembling Q1115+080A, B, C is found. In this model, Q1115+080A is a highly magnified close pair of images oriented in the position angle 23 deg. An elongation Q1115+080A at this angle is seen in the CCD pictures.

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