Double Einstein ring

This is an image of gravitational lens system SDSSJ0946+1006 as photographed by Hubble Space Telescope's Advanced Camera for Surveys. The gravitational field of an elliptical galaxy warps the light of two galaxies exactly behind it. The massive foreground galaxy is almost perfectly aligned in the sky with two background galaxies at different distances. The foreground galaxy is 3 billion light-years away, the inner ring and outer ring are comprised of multiple images of two galaxies at a distance of 6 and approximately 11 billion light-years. The odds of seeing such a special alignment are estimated to be 1 in 10,000.

Credit:

NASA, ESA, and R. Gavazzi and T. Treu (University of California, Santa Barbara)

About the Image

Id:heic0803b
Type:Observation
Release date:10 January 2008, 16:00
Related releases:heic0803
Size:1215 x 1693 px

About the Object

Name:SDSSJ0946+1006
Type:• Early Universe : Galaxy : Type : Gravitationally Lensed
• X - Galaxies Images/Videos
Distance:z=0.609 (redshift)

Colours & filters

BandWavelengthTelescope
Infrared
I
814 nm Hubble Space Telescope
ACS

Image Formats

Large JPEG
448.5 KB
Screensize JPEG
265.0 KB

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