Merging Galaxy Cluster Abell 520
This combination picture shows a placement of dim matter, galaxies, and prohibited gas in a core of a merging universe cluster Abell 520, shaped from a aroused collision of large universe clusters.
The natural-color picture of a galaxies was taken with NASA’s Hubble Space Telescope and with a Canada-France-Hawaii Telescope in Hawaii.
Superimposed on a picture are “false-colored” maps display a thoroughness of starlight, prohibited gas, and dim matter in a cluster. Starlight from galaxies, subsequent from observations by a Canada-France-Hawaii Telescope, is colored orange. The green-tinted regions uncover prohibited gas, as rescued by NASA’s Chandra X-ray Observatory. The gas is justification that a collision took place. The blue-colored areas pinpoint a plcae of many of a mass in a cluster, that is dominated by dim matter. Dark matter is an invisible piece that creates adult many of a universe’s mass. The dark-matter map was subsequent from a Hubble Wide Field Planetary Camera 2 observations by detecting how light from apart objects is twisted by a cluster of galaxies, an outcome called gravitational lensing.
The mix of blue and immature in a core of a picture reveals that a clump of dim matter resides nearby many of a prohibited gas, where really few galaxies are found. This anticipating confirms prior observations of a dark-matter core in a cluster. The outcome could benefaction a plea to simple theories of dim matter, that envision that galaxies should be anchored to dim matter, even during a startle of a collision.
Abell 520 resides 2.4 billion light-years away.
Image Credit: NASA, ESA, CFHT, CXO, M.J. Jee (University of California, Davis), and A. Mahdavi (San Francisco State University)