Dark matter ring in galaxy cluster

Dark matter ring in galaxy cluster

R980/0230 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 44.0MB

Downloadable file size: 10.2MB

Price image Pricing

Please login to use the price calculator


Caption: Dark matter ring in the galaxy cluster CI 0024+17, Hubble Space Telescope image. The ring is seen surrounding a central concentration of dark matter (coloured blue here). Dark matter does not emit or reflect light, so is hard to detect, but it is thought to make up much of the universe. The distribution of dark matter in the cluster was worked out by observing the effects of the cluster's gravity on the appearance of galaxies far beyond it, a phenomenon known as gravitational lensing. The distant galaxies are seen as distorted blue smears, while the cluster galaxies are bright yellow. Data gathered by the Advanced Camera for Surveys on the HST in November 2004. See R932/062 for the cluster in normal light, and R900/106 for a graphic showing the ring's formation.

Release details: Model release not required. Property release not required.

Keywords: 2004, 21st century, acs, advanced camera for surveys, annular, astronomical, astronomy, astrophysical, astrophysics, ci 0024+17, cosmological, cosmology, dark matter, distorted, distribution, galaxies, galaxy, galaxy cluster, gravitational lensing, hst, hubble space telescope, lens, lensed, magnified, many, missing mass, multiple, ring, ring-shaped, space, telescope, universe, warped

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.