The image was created from Hubble data from proposal 11570: A. Riess (STScI/JHU), L. Macri (Texas A&M University), C. Kochanek and K. Stanek (Ohio State University), A. Filippenko and W. Li (University of California, Berkeley), S. Casertano and H. Ferguson (STScI), and L. Greenhill (Harvard-Smithsonian Center for Astrophysics).
The science team comprises: A. Riess (STScI/JHU), L. Macri (Texas A&M University), S. Casertano (STScI), H. Lampeitl (University of Portsmouth, UK), H. Ferguson (STScI), A. Filippenko (University of California, Berkeley), S. Jha (Rutgers University), W. Li (University of California, Berkeley), and R. Chornock (Harvard-Smithsonian Center for Astrophysics).
Note: Hubble data of NGC 5584 taken with WFC3/IR filters, along with numerous other galaxies, were used in these science results.
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:
White: F350LP (Long Pass)
Blue: F555W (V)
Orange: F814W (I)