Browse > Article
http://dx.doi.org/10.5303/JKAS.2005.38.4.445

SPATIO-SPECTRAL MAXIMUM ENTROPY METHOD: II. SOLAR MICROWAVE IMAGING SPECTROSCOPY  

Bong, Su-Chan (Korea Astronomy and Space Science Institute)
Lee, Jeong-Woo (Physics Department, New Jersey Institute of Technology)
Gary Dale E. (Physics Department, New Jersey Institute of Technology)
Yun Hong-Sik (Astronomy Program, School of Earth and Environmental Science, Seoul National University)
Chae Jong-Chul (Astronomy Program, School of Earth and Environmental Science, Seoul National University)
Publication Information
Journal of The Korean Astronomical Society / v.38, no.4, 2005 , pp. 445-462 More about this Journal
Abstract
In a companion paper, we have presented so-called Spatio-Spectral Maximum Entropy Method (SSMEM) particularly designed for Fourier-Transform imaging over a wide spectral range. The SSMEM allows simultaneous acquisition of both spectral and spatial information and we consider it most suitable for imaging spectroscopy of solar microwave emission. In this paper, we run the SSMEM for a realistic model of solar microwave radiation and a model array resembling the Owens Valley Solar Array in order to identify and resolve possible issues in the application of the SSMEM to solar microwave imaging spectroscopy. We mainly concern ourselves with issues as to how the frequency dependent noise in the data and frequency-dependent variations of source size and background flux will affect the result of imaging spectroscopy under the SSMEM. We also test the capability of the SSMEM against other conventional techniques, CLEAN and MEM.
Keywords
techniques: image processing; techniques: interferometric; techniques: spectroscopic; Sun: radio radiation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Radio Emission from the Sun and Stars /
[ Dulk, G.A. ] / ARA&A   DOI   ScienceOn
2 Coronal Temperature, Density, and Magnetic Field Maps of a Solar Active Region Using the Owens Valley Solar Array /
[ Gary, D.E.;Hurford, G.J. ] / ApJ   DOI
3 Reconstruction of RHESSI Solar Flare Images with a Forward Fitting Method /
[ Aschwanden, M.J.;Schmahl, E.J.;The RHESSI team ] / Sol. Phys.   DOI
4 Numerical recipes in C: The Art of Scientific Computing /
[ Press, W.H.;Teukolsky, S.A.;Vetterling, W.T.;Flannery, B.P. ] /   DOI   ScienceOn
5 OVRO Solar Array Upgrades in Preparation for MAX 2000, in NRO Rep. 479, Solar Physics with Radio Observation /
[ Gary, D.E.;Hurford, G.J.;Bastian, T.S.(ed.);Gopalswamy, N.(ed.);Shibasaki, K.(ed.) ] / Proceedings of the Nobeyama Symposium
6 Imaging Capabilities of the Frequency Agile Solar Radiotelescope (FASR);Innovative Telescopes and Instrumentation for Solar Astrophysics /
[ White, S.M.;Lee, J.;Aschwanden, M.J.;Bastian, T.S.;Keil, S.L.(ed.);Avakyan, S.V.(ed.) ] / Proc. of the SPIE
7 Multi-Frequency Synthesis Techniques in Radio Interferometric Imaging /
[ Sault, R.J.;Wieringa, M.H. ] / A&AS   DOI
8 RHESSI Observations of the Size Scales of Solar Hard X-Ray Sources /
[ Schmahl, E.J.;Hurford, G.J. ] / Sol. Phys.   DOI
9 Maximum Entropy Image Reconstruction: General Algorithm /
[ Skilling, J.;Bryan, R.K. ] / MNRAS
10 Maximum Entropy Image Reconstruction /
[ Wernecke, S.J.;D'Addario, L.R. ] / IEEE Trans. Comput.   DOI   ScienceOn
11 A Modification of the Cornwell and Evans Maximum Entropy Algorithm /
[ Sault, R.J. ] / ApJ
12 Image Reconstruction from Incomplete and Noisy Data /
[ Gull, S.F.;Daniell, G.J. ] / Nature
13 Aperture Synthesis with a Non-Regular Distribution of Interferometer Baselines /
[ Hogbom, J.A. ] / A&AS   DOI
14 A Spatial and Spectral Maximum Entropy Method as Applied to OVRO Solar Data /
[ Komm, R.W.;Hurford, G.J.;Gary, D.E. ] / A&AS
15 Plasma Astrophysics, Vol. 1 /
[ Melrose, D.B. ] /   DOI   ScienceOn
16 Deconvolution;Synthesis Imaging in Radio Astronomy II /
[ Cornwell, T.J.;Braun, R.;Briggs, D.S.;Taylor, G.B.(ed.);Carilli, C.L.(ed.);Perley, R.A.(ed.) ] / ASP Conf. Ser.
17 Maximum entropy image restoration in astronomy /
[ Narayan, R.;Nityananda, R. ] / ARA&A
18 Spatio-Spectral Maximum Entropy Method: I. Formulation and Test /
[ Bong, S.C.;Lee, J.;Gary, D.E.;Yun, H.S. ] / ApJ
19 Multi-Frequency Synthesis: a New Technique in Radio Interferometric Imaging /
[ Conway, J.E.;Cornwell, T.J.;Wilkinson, P.N. ] / MNRAS
20 A Simple Maximum Entropy Deconvolution Algorithm /
[ Cornwell, T.J.;Evans, K.F. ] / A&A