The original NICMOS data were from the HST proposal 7226: E. Becklin (University of California, Los Angeles) et al.
The science team comprises: R. Soummer, B. Hagan, and A. Rajan (STScI), L. Pueyo and A. Thormann (JHU), and C. Marois (Herzberg Institute of Astrophysics, Victoria).
This image was originally black and white and recorded only overall brightness. These brightness values were translated into a range of arbitrary colors. Such color "maps" can be useful in helping to distinguish subtly varying brightness in an image.