Hubble Examines the Galaxy Cluster MACSJ 1206

This Hubble Space Telescope image shows the massive galaxy cluster MACSJ 1206. Embedded within the cluster are the distorted images of distant background galaxies, seen as arcs and smeared features. These distortions are caused by the dark matter in the cluster, whose gravity bends and magnifies the light from faraway galaxies, an effect called gravitational lensing. This phenomenon allows astronomers to study remote galaxies that would otherwise be too faint to see. 

Astronomers measured the amount of gravitational lensing caused by this cluster to produce a detailed map of the distribution of dark matter in it. Dark matter is the invisible glue that keeps stars bound together inside a galaxy and makes up the bulk of the matter in the Universe.

The Hubble image is a combination of visible- and infrared-light observations taken in 2011 by the Advanced Camera for Surveys and Wide Field Camera 3.

Credit:

NASA, ESA, G. Caminha (University of Groningen), M. Meneghetti  (Observatory of Astrophysics and Space Science of Bologna), P. Natarajan (Yale University), and the CLASH team.

About the Image

Id:heic2016b
Type:Collage
Release date:10 September 2020, 20:00
Related releases:heic2016
Size:2082 x 1911 px

About the Object

Name:MACS J1206.2-0847, MACSJ1206.2-0847
Type:Early Universe : Galaxy : Grouping : Cluster
Early Universe : Cosmology
Category:Cosmology
Galaxies

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Colours & filters

BandWavelengthTelescope
Optical
B
435 nm Hubble Space Telescope
ACS
Optical
g
475 nm Hubble Space Telescope
ACS
Optical
V
606 nm Hubble Space Telescope
ACS
Optical
r
625 nm Hubble Space Telescope
ACS
Optical
i
775 nm Hubble Space Telescope
ACS
Optical
I
814 nm Hubble Space Telescope
ACS
Optical
z
850 nm Hubble Space Telescope
ACS
Infrared
Y
1.05 μm Hubble Space Telescope
WFC3
Infrared
YJ
1.1 μm Hubble Space Telescope
WFC3
Infrared
J
1.25 μm Hubble Space Telescope
WFC3
Infrared
JH
1.4 μm Hubble Space Telescope
WFC3
Infrared
H
1.6 μm Hubble Space Telescope
WFC3

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