The Einstein Ring SDP.81 seen with ALMA

ALMA’s Long Baseline Campaign has produced a spectacularly detailed image of a distant galaxy being gravitationally lensed, revealing star-forming regions — something that has never seen before at this level of detail in a galaxy so remote. The new observations are far more detailed than any previously made of such a distant galaxy, including those made using the NASA/ESA Hubble Space Telescope, and reveal clumps of star formation in the galaxy equivalent to giant versions of the Orion Nebula.

The gravitationally lensed galaxy SDP.81, which appears as an almost perfect Einstein Ring, is seen here.

Credit:

ALMA (NRAO/ESO/NAOJ)/Y. Tamura (The University of Tokyo)

About the Image

Id:eso1522c
Type:Observation
Release date:8 June 2015, 20:00
Related releases:eso1522
Size:932 x 932 px

About the Object

Name:Einstein Ring, H-ATLAS J090311.6+003906, SDP 81
Type:Early Universe : Galaxy : Type : Gravitationally Lensed
Early Universe : Cosmology : Phenomenon : Lensing
Distance:z=3.04 (redshift)
Constellation:Hydra
Category:Galaxies

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Coordinates

Position (RA):9 3 11.58
Position (Dec):0° 39' 6.64"
Field of view:0.08 x 0.08 arcminutes
Orientation:North is 18.7° right of vertical

Colours & filters

BandTelescope
MillimeterAtacama Large Millimeter/submillimeter Array

 

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