Skymapping with OSSE via the Mean Field Annealing Pixon Technique
D. D. Dixon, T. O. Tümer, A. D. Zych, L. X. Cheng, W. N. Johnson,
J. D. Kurfess, R. K. Piña, R. C. Puetter, W. R. Purcell,
and Wm. A. Wheaton
Astrophysical Journal, 484, 891 (1997)
Abstract
We present progress toward using scanned OSSE observations for mapping
and sky survey work. To this end, we have developed
a technique for detecting pointlike sources of unknown number and
location, given that they appear in a background which is relatively
featureless or which can be modeled.
The technique, based on the newly developed pixon
concept and mean field annealing, is described, with sample
reconstructions of data from the OSSE Virgo Survey. The results
demonstrate the capability of reconstructing source information without
any a priori information about the number and/or location of
pointlike sources in the field-of-view.