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.

Oikeudet:

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

Kuvasta

Tunnistus:eso1528c
Tyyppi:Havainto
Julkaisupäivä:9. heinäkuuta 2015 16:00
Vastaavat julkaisut:eso1528
Koko:3818 x 3560 px

Kohteesta

Tyyppi:Early Universe : Cosmology : Phenomenon : Dark Matter
Constellation:Virgo
Kategoria:Cosmology

Kuvaformaatit

Suuri JPEG
4,4 MB
Kokoruudun JPEG
271,3 KB

Koordinaatit

Position (RA):11 56 10.25
Position (Dec):0° 20' 49.11"
Field of view:12.73 x 11.87 arcminutes
Suuntaus:Pohjoinen on 180.0° vasen pystysuuntaan nähden

Värit ja suotimet

KaistaAallonpituusTeleskooppi
Optinen
u
350 nmVLT Survey Telescope
OmegaCAM
Optinen
g
480 nmVLT Survey Telescope
OmegaCAM
Optinen
r
625 nmVLT Survey Telescope
OmegaCAM
Optinen
i
770 nmVLT Survey Telescope
OmegaCAM

 

Katso myös