A New Look at Image Reconstruction of COMPTEL 1.8 MeV Data

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dc.creatorKnodlseder, J.
dc.creatorDixon, D.
dc.creatorDiehl, R.
dc.creatorOberlack, U.
dc.creatorvon Ballmoos, P.
dc.creatorBloemen, H.
dc.creatorHermsen, W.
dc.creatorIyudin, A.
dc.creatorRyan, J.
dc.creatorSchonfelder, V.
dc.date1999-02-19
dc.date.accessioned2026-07-07T02:30:32Z
dc.date.available2026-07-07T02:30:32Z
dc.descriptionDeconvolving COMPTEL gamma-ray data into images presents a major methodological challenge. We developed a new algorithm called Multiresolution Regularized Expectation Maximization (MREM), which explicitly accounts for spatial correlations in the image by using wavelets (Dixon et al. 1998). We demonstrate that MREM largely suppresses image noise in the reconstruction, showing only significant structures that are present in the data. Application to 1.8 MeV data results in a sky map that is much smoother than the maximum entropy reconstructions presented previously, but it shows the same characteristic emission features which have been established earlier.
dc.description4 pages, 1 figure, Proc. of the 3rd INTEGRAL workshop, Taormina
dc.identifierhttps://arxiv.org/abs/astro-ph/9902283
dc.identifierhttp://arxiv.org/abs/astro-ph/9902283
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/13845
dc.subjectAstrophysics
dc.titleA New Look at Image Reconstruction of COMPTEL 1.8 MeV Data
dc.typetext

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