Hubble finds dark matter ring in galaxy cluster

Esahubble_heic0709b_1024

esahubble_heic0709b May 15th, 2007

Credit: NASA, ESA, M.J. Jee and H. Ford (Johns Hopkins University)

An international team of astronomers using the NASA/ESA Hubble Space Telescope has discovered a ghostly ring of dark matter that was formed long ago during a titanic collision between two massive galaxy clusters. It is the first time that a dark matter distribution has been found that differs substantially from the distribution of ordinary matter. This image shows the galaxy cluster Cl 0024+17 (ZwCl 0024+1652) as seen by Hubble's Advanced Camera for Surveys. The image displays faint faraway background galaxies that had their light bent by the cluster's strong gravitational field. By mapping the distorted light and using it to deduce how dark matter is distributed in the cluster, astronomers spotted the ring of dark matter. One of the background galaxies is located about two times further away than the yellow cluster galaxies in the foreground, and has been multiple-imaged into five separate arc-shaped components, seen in blue.

Image Source: http://www.spacetelescope.org/images/heic0709b/

Curator: ESA/Hubble, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
ZwCl0024+1652
Subject - Distant Universe
Galaxy > Grouping > Cluster
Cosmology > Phenomenon > Dark Matter
Esahubble_heic0709b_128
 

Position Details

Position (ICRS)
RA = 0h 26m 34.5s
DEC = 17° 9’ 44.0”
Orientation
North is 86.4° CW
Field of View
3.2 x 3.3 arcminutes
Constellation
Pisces

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_blue Hubble Space Telescope (ACS) Optical (B) 435.0 nm
Arrow_left_blue Hubble Space Telescope (ACS) Optical (B) 475.0 nm
Arrow_left_green Hubble Space Telescope (ACS) Optical (V) 555.0 nm
Arrow_left_green Hubble Space Telescope (ACS) Optical (R) 625.0 nm
Arrow_left_red Hubble Space Telescope (ACS) Infrared (I) 814.0 nm
Arrow_left_red Hubble Space Telescope (ACS) Infrared (Z) 850.0 nm
Spectrum_base
Arrow_top_blue
Arrow_top_blue
Arrow_top_green
Arrow_top_green
Arrow_top_red
Arrow_top_red
Esahubble_heic0709b_1280
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ID
heic0709b
Subject Category
D.5.5.3   D.6.2.3  
Subject Name
ZwCl0024+1652
Credits
NASA, ESA, M.J. Jee and H. Ford (Johns Hopkins University)
Release Date
2007-05-15T19:00:00
Lightyears
Redshift
Reference Url
http://www.spacetelescope.org/images/heic0709b/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
ACS, ACS, ACS, ACS, ACS, ACS
Color Assignment
Blue, Blue, Green, Green, Red, Red
Band
Optical, Optical, Optical, Optical, Infrared, Infrared
Bandpass
B, B, V, R, I, Z
Central Wavelength
435, 475, 555, 625, 814, 850
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
6.64372186306, 17.1622165953
Reference Dimension
3838.0, 3928.0
Reference Pixel
1912.00018941, 1916.91947786
Scale
-1.390258e-05, 1.390258e-05
Rotation
-86.391
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
ESA/Hubble
URL
http://www.spacetelescope.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
ESA/Hubble
Publisher ID
esahubble
Resource ID
heic0709b
Metadata Date
2015-10-02T14:25:58.325729
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.