First results from the KiDS Survey (visible light)

Eso_eso1528b_500

eso_eso1528b July 9th, 2015

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

The first results have been released from a major new dark matter survey of the southern skies using ESOs 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 seen is a group of galaxies mapped by KiDS.

Image Source: https://www.eso.org/public/images/eso1528b/

Curator: European Southern Observatory, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Subject - Distant Universe
Cosmology » Phenomenon » Dark Matter
Eso_eso1528b_128
 

Position Details

Position (ICRS)
RA = 11h 56m 10.3s
DEC = 0° 20’ 49.1”
Orientation
North is 180.0° CCW
Field of View
12.7 x 11.9 arcminutes
Constellation
Virgo

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_blue VLT Survey Telescope (OmegaCAM) Optical (u) 350.0 nm
Arrow_left_green VLT Survey Telescope (OmegaCAM) Optical (g) 480.0 nm
Arrow_left_yellow VLT Survey Telescope (OmegaCAM) Optical (r) 625.0 nm
Arrow_left_orange VLT Survey Telescope (OmegaCAM) Optical (i) 770.0 nm
Spectrum_base
Arrow_top_blue
Arrow_top_green
Arrow_top_yellow
Arrow_top_orange
Eso_eso1528b_1280
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ID
eso1528b
Subject Category
D.6.2.3  
Subject Name
Credits
Kilo-Degree Survey Collaboration/A. Tudorica & C. Heymans/ESO
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso1528b/
Type
Observation
Image Quality
Distance Notes
Facility
VLT Survey Telescope, VLT Survey Telescope, VLT Survey Telescope, VLT Survey Telescope
Instrument
OmegaCAM, OmegaCAM, OmegaCAM, OmegaCAM
Color Assignment
Blue, Green, Yellow, Orange
Band
Optical, Optical, Optical, Optical
Bandpass
u, g, r, i
Central Wavelength
350, 480, 625, 770
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
179.042720641, -0.346976260937
Reference Dimension
3818.0, 3560.0
Reference Pixel
1909.0, 1780.0
Scale
-5.55720316077e-05, 5.55720316077e-05
Rotation
180
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
European Southern Observatory
URL
http://www.eso.org/
Name
Email
Telephone
Address
Karl-Schwarzschild-Strasse 2
City
Garching bei München
State/Province
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
European Southern Observatory
Publisher ID
eso
Resource ID
eso1528b
Metadata Date
2015-07-09T16:27:28+02:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

 

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There is no distance meta data in this image.