News Release Archive:

News Release 39 of 325

April 3, 2014 02:00 PM (EDT)

News Release Number: STScI-2014-22

Hubble Finds That Monster 'El Gordo' Galaxy Cluster Is Bigger Than Thought

Technical facts about this news release:

About the Object
Object Name: El Gordo, ACT-CL J0102-4915
Object Description: Galaxy Cluster
Position (J2000): R.A. 01h 02m 53s
Dec. -49° 15' 19"
Constellation: Phoenix
Distance: 9.7 billion light-years (3 billion parsecs)
About the Data
Data Description: The Hubble data are from proposal 12755: J. Hughes (Rutgers University), F. Menanteau (Rutgers University/University of Illinois, Urbana-Champaign), L. Infante and L.F. Barrientos (Ponticia Universidad Catolica de Chile), and R. Mandelbaum (Carnegie Mellon University), and archival data from proposal 12477: F. High (University of Chicago) et al.
Instrument: ACS/WFC
Exposure Date(s): September - October, 2012
Filters: F606W (V), F625W (r), F775W (i), F814W (I), and F850LP (z)
About the Release
Credit: NASA, ESA, J. Jee (University of California, Davis), J. Hughes (Rutgers University), F. Menanteau (Rutgers University and University of Illinois, Urbana-Champaign), C. Sifon (Leiden Observatory), R. Mandelbum (Carnegie Mellon University), L. Barrientos (Universidad Catolica de Chile), and K. Ng (University of California, Davis)
Release Date: April 3, 2014
Colors: This composite image includes exposures acquired by the ACS instruments on the Hubble Space Telescope. Several filters were used to sample broad wavelength ranges. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are:
F625W (r) blue
F775W (i) green
F850LP (z) red
Derived Mass cyan
Orientation/Scale: Compass and Scale Image for 'El Gordo'