News Release Archive:

News Release 39 of 137

February 2, 2012 01:00 PM (EST)

News Release Number: STScI-2012-08

Hubble Zooms in on a Magnified Galaxy

Technical facts about this news release:

About the Object
Object Names: RCS2 032727-132623 (foreground galaxy cluster)
RCSGA 032727-132609 (giant arc and counter image of a background galaxy)
Object Description: Galaxy Cluster and Gravitational Lens System
Position (J2000): R.A. 03h 27m 27s.09
Dec. -13° 26' 22".8
Constellation: Eridanus
Redshifts: RCSGA 032727-132609 background galaxy is located at z = 1.701. The foreground galaxy cluster, RCS2 032727-132623, is located at z = 0.564.
About the Data
Data Description: The image was created from Hubble data from proposal 12267: J. Rigby (NASA Goddard Space Flight Center) et al.
Instruments/Filters: WFC3/UVIS: F390W (U), F606W (V), and F814W (I)
WFC3/IR: F098M (blue grism), F125W (J), F132N (Paschen β), and F160W (H)
Exposure Date(s): March 1, 2011
Exposure Time: 2.7 hours
About the Release
Credit: NASA, ESA, J. Rigby (NASA Goddard Space Flight Center), K. Sharon (Kavli Institute for Cosmological Physics, University of Chicago), and M. Gladders and E. Wuyts (University of Chicago)
Release Date: February 2, 2012
Color: This image is a composite of separate exposures acquired by the WFC3 instrument on HST. 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:
F390W + F606W blue
F814W green
F098M + F125W + F132N + F160W red