News Release Archive:

News Release 20 of 93

October 25, 2012 01:00 PM (EDT)

News Release Number: STScI-2012-24

Monster Galaxy May Have Been Stirred Up By Black-hole Mischief

Technical facts about this news release:

About the Object
Object Name: Abell 2261, A2261-BCG
Object Description: Elliptical Galaxy
Position (J2000): R.A. 17h 22m 28s.34
Dec. +32° 09' 12".67
Constellation: Hercules
Distance: 3 billion light-years (920 megaparsecs)
About the Data
Data Description: The image was created from Hubble data from proposal 12066: M. Postman (STScI) et al.
Instrument: ACS/WFC, WFC3/UVIS, and WFC3/IR
Exposure Date(s): March - May 2011
Exposure Time: 13 hours
About the Release
Image Credit: NASA, ESA, M. Postman (STScI), T. Lauer (NOAO), and the CLASH Team
Release Date: October 25, 2012
Filters and Colors This image is a composite of separate exposures acquired by the ACS instrument. Several filters were used to sample various wavelengths. 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:
ACS/WFC F435W (B) + F475W (g) blue
ACS/WFC F606W (V) + F625W (r) + F775W (i) green
ACS/WFC F814W (I) + F850LP (z)
WFC3/IR F105W (Y) + F110W (YJ) + F125W (J) + F140W (JH) + F160W (H)