First results from the KiDS survey (dark matter)

The first results have been released from a major new dark matter survey of the southern skies using ESO’s VLT Survey Telescope (VST) at the Paranal Observatory in Chile.

The project, known as the Kilo-Degree Survey (KiDS), uses imaging from the VST and its huge camera, OmegaCAM to analyse images of over two million galaxies. The KiDS team studied the distortion of light emitted from these galaxies, which bends as it passes massive clumps of dark matter during its journey to Earth. From the gravitational lensing effect, these groups turn out to contain around 30 times more dark than visible matter.

Here the invisible dark matter is seen rendered in pink on top of the visible-light image.

Mynd/Myndskeið:

Kilo-Degree Survey Collaboration/A. Tudorica & C. Heymans/ESO

Um myndina

Auðkenni:eso1528c
Tegund:Athuganir
Útgáfudagur:Júl 9, 2015, 16:00 CEST
Tengdar fréttatilkynningar:eso1528
Stærð:3818 x 3560 px

Um fyrirbærið

Tegund:Early Universe : Cosmology : Phenomenon : Dark Matter
Constellation:Virgo
Flokkur:Cosmology

Myndasnið

Stór JPEG
4,4 MB

Hnit

Position (RA):11 56 10.25
Position (Dec):0° 20' 49.11"
Field of view:12.73 x 11.87 arcminutes
Stefna:Norður er 180.0° vinstri frá lóðréttu

Litir og síur

TíðnisviðBylgjulengdSjónauki
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u
350 nmVLT Survey Telescope
OmegaCAM
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480 nmVLT Survey Telescope
OmegaCAM
Sýnilegt
r
625 nmVLT Survey Telescope
OmegaCAM
Sýnilegt
i
770 nmVLT Survey Telescope
OmegaCAM

 

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