Hubble image archive

Compass and Scale Image of Abell 2744

CreditsNASA, ESA, J. Merten (Institute for Theoretical Astrophysics, Heidelberg/Astronomical Observatory of Bologna), and D. Coe (STScI); Illustration: NASA, ESA, and Z. Levay (STScI)

Date
Jan 1, 2011
Mission
Hubble Space Telescope
Archive ID
hubblesite-images-2011-17-2857-image
By

Credits

NASA, ESA, J. Merten (Institute for Theoretical Astrophysics, Heidelberg/Astronomical Observatory of Bologna), and D. Coe (STScI);
Illustration: NASA, ESA, and Z. Levay (STScI)

Image Details

About The Object
Object NamePandora's Cluster, Abell 2744
Object DescriptionGalaxy Cluster with Gravitational Lensing
R.A. Position00h 14m 19.5s
Dec. Position-30° 23' 19.18"
ConstellationSculptor
DistanceRedshift: z=0.308
About The Data
Data DescriptionThe image was created from Hubble data from proposal : R. Dupke (University of Michigan), N. Benitez (Astrophysical Institute of Andalucía, Spain), J. Krick (California Institute of Technology), B. Bregman (University of Michigan), D. Coe (STScI), L. Sodre (University of Sao Paulo), T. Broadhurst (Tel Aviv University, Wise Observatory), and R. Bernstein (University of California, Santa Cruz). The science team is led by J. Merten (Institute for Theoretical Astrophysics, Heidelberg/Astronomical Observatory of Bologna).
InstrumentHST>ACS/WFC, ESO>VLT, and CXO
Exposure DatesOctober 27-30, 2009, Exposure Time: 12 hours
FiltersACS/WFC: F438W (B), F606W (V), and F814W (I) VLT: B, R, I Chandra X-ray
About The Image
Color InfoThe image is a composite of separate exposures made by Hubble Space Telescope ACS detectors, the ESO's Very Large Telescope (VLT), and the Chandra ACIS detector. Hubble provides the central, most detailed part of the image, while the VLT, which has a wider field of view, provides the outer parts of the image. A map of the cluster's dark matter distribution has also been applied to the image. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are: Blue: Dark Matter Map + F438W (B) + VLT B Green: F606W (V) + VLT R Red: Chandra X-ray data + F814W(I) + VLT I

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