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A distant quasar may have its light split into multiple images by a foreground galaxy cluster that acts as a gravitational lens. The light travels along different paths of differing lengths to form ea...
SDSS J133401.39+331534.3: A New Subarcsecond Gravitationally Lensed Quasar
Subarcsecond Gravitationally Lensed Quasar
2011/9/29
The quasar SDSS J133401.39+331534.3 at z = 2.426 is found to be a two-image gravitationally lensed quasar with the image separation of 0.833. The object is first identified as a lensed quasar candidat...
Microlensing probes the AGN structure of the lensed quasar J1131-1231
Microlensing probes lensed quasar J1131-1231 AGN structure
2009/7/9
Microlensing probes the AGN structure of the lensed quasar J1131-1231。