COMPTEL skymapping: a new approach using parallel computing
Abstract
Large-scale skymapping with COMPTEL using the full survey database presents challenging problems on account of the complex response and time-variable background. A new approach which attempts to address some of these problems is described, in which the information about each observation is preserved throughout the analysis. In this method, a maximum-entropy algorithm is used to determine image and background simultaneously. Because of the extreme computing requirements, the method has been implemented on a parallel computer, which brings large gains since the response computation is fully parallelizable. The zero level is left undetermined in this method. Results using data from 7 years of COMPTEL data are presented.
Keywords
Cite
@article{arxiv.astro-ph/9811211,
title = {COMPTEL skymapping: a new approach using parallel computing},
author = {A. W. Strong and H. Bloemen and R. Diehl and W. Hermsen and V. Schoenfelder},
journal= {arXiv preprint arXiv:astro-ph/9811211},
year = {2007}
}
Comments
4 pages including 12 figures (9 in color), latex2e, uses epsfig.sty. A paper presented at the 3rd INTEGRAL Workshop "The Extreme Universe" (14-18 Sep. 1998, Taormina, Italy), paper #15, in press