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News Release Archive:

News Release 89 of 950

November 29, 2012 09:00 AM (EST)

News Release Number: STScI-2012-47

A Multi-Wavelength View of Radio Galaxy Hercules A

Technical facts about this news release:

About the Object
Object Name: Hercules A, Herc A, 3C 348
Object Description: Active Galaxy; Radio Galaxy
Position (J2000): R.A. 16h 51m 08s.15
Dec. +04° 59' 33".32
Constellation: Hercules
Distance: 2.1 billion light-years (637 million parsecs or redshift z = 0.156)
About the Data
Data Description: The image was created from Hubble data from proposal 13065: S. Baum and C. O'Dea (Rochester Institute of Technology) and J. Stoke and F. Lo (Associated Universities, Inc.).
Instrument: WFC3/UVIS
Exposure Date(s): October 8, 2012
Exposure Time: 1 hour
Filters: F606W (V) and F814W (I)
About the Release
Notes: The VLA data are from the National Radio Astronomy Observatory observation project TDEM0011: R. Perley, W. Cotton, and U. Rao (NRAO/AUI/NSF). These data were taken August 2010 through September 2011. Frequencies 4-9 GHz were measured.
Credit: NASA, ESA, S. Baum and C. O'Dea (RIT), R. Perley and W. Cotton (NRAO/AUI/NSF), and the Hubble Heritage Team (STScI/AURA)
Release Date: November 29, 2012
Color: This image is a composite of separate exposures acquired by Hubble's WFC3 instrument and the VLA. Several filters were used to sample various wavelengths/frequencies. 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:
F814W (I) orange
F606W (V) blue
VLA C Band Low (4-6 GHz) red
VLA C Band High (6-8 GHz) green
VLA X Band Low (8-9 GHz) blue
Orientation/Scale: Compass and Scale Image of Hercules A