Split, Distorted Light From Quasar PG1115+080 (left) and a Stretched Ring of Galactic Light (right)

Split, Distorted Light From Quasar PG1115+080 (left) and a Stretched Ring of Galactic Light (right)

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Fast Facts
News release ID: STScI-1998-37
Release Date: Oct 26, 1998
Image Use: Copyright
About this image

Left: The light from the single quasar PG 1115+080 is split and distorted in this infrared image. PG 1115+080 is at a distance of about 8 billion light years in the constellation Leo, and it is viewed through an elliptical galaxy lens at a distance of 3 billion light years. The NICMOS frame is taken at a wavelength of 1.6 microns and it shows the four images of the quasar (the two on the left are nearly merging) surrounding the galaxy that causes the light to be lensed. The quasar is a variable light source and the light in each image travels a different path to reach the Earth. The time delay of the variations allows the distance scale to be measured directly. The linear streaks on the image are diffraction artifacts in the NICMOS instrument (NASA/Space Telescope Science Institute).

Right: In this NICMOS image, the four quasar images and the lens galaxy have been subtracted, revealing a nearly complete ring of infrared light. This ring is the stretched and amplified starlight of the galaxy that contains the quasar, some 8 billion light years away. (NASA/Space Telescope Science Institute).


Tags
Active Galaxies/Quasars, Annotated, Astronomical, Exotic, Galaxies, Gravitational Lensing, Hubble Telescope

Credits

Credit: Christopher D. Impey (University of Arizona)