Preliminary Helioseismology with the FFT of Image Analysing System Applied to the Spacelab2 Movie Images
スポンサーリンク
概要
- 論文の詳細を見る
White-light movie images of quiet sun observed by Spacelab2 are studied by means of a simple personal image analyzing system(PIAS). A 2-dimensional spacial Fourier analysis is performed for scenes of more than 20 epochs in 25 minutes observing interval. Inverse Fourier transform images for several selected spatial frequency regions are then produced, and the brightness of a pixel on successive images is measured to obtain the time dependence of that spatial frequency. Preliminary measurements show peaks in the (k-ω)-spectram corresponding to spectral ranges of the evanescent wave in addition to the spectral ranges corresponding to the well-known solar 5 min oscillation. Since the present measurement is relatively sensitive to holizontal motion, the possible detection of the evanescent wave spectrum should not be disregarded, even if theoretically implausible.
- 近畿大学の論文
- 1994-01-30
著者
-
Ohara S
Faculty Of Economics Nara Industrial University
-
Ohara Soji
Faculty Of Science Hiroshima University:rigaku Denki Kogyo Co. Ltd.
-
Ohara Soji
Faculty Of Economics Nara Sangyo University
-
Koyama Kouichi
近畿大学理工学総合研究所
-
Unno Wasaburo
近畿大学理工学総合研究所
関連論文
- Image Processing of Fossil Growth Patterns for Paleo-Geochronology.
- Dynamical System Approach for Mathematical Economics
- Dynamical System Theory of Migration
- Chaos in Cosmic Ray Air Showers
- Chaotic Feature of Extensive Cosmic Ray Air Showers
- An Analysis of Fractal Dimension of Cosmic Ray Air Shower
- Preliminary Helioseismology with the FFT of Image Analysing System Applied to the Spacelab2 Movie Images
- Dimensions of Synthesized Time Series Data
- Morphology of Distant Galaxies
- Noticeable Change of p-p Spin-Orbit Interaction at Short Distance : A Possible First-Order Phase Transition Found in p-p Scattering at T_L=3〜10 GeV
- Fourier Analysis of Growth Pattern of a Precambrian Stromatolite for Palaeo-Geochronology
- Knowledge Base of Buddhism Sutra of the Deepest Wisdom
- Magnetic Structure of the Cubic Perovskite Type SrMNO_3
- Mineralogical Analyses of a Precambrian Stromatolite
- The Arrival Direction of EAS Observed by Kinki Array with Energy Around 10^ eV (II)
- The Arrival Direction of EAS Observed by Kinki Array with Energy Around 10^ eV
- The Atomic Magnetic Moment in bcc Ternary Iron Alloys Fe (Co Mn) and Fe (Co Cr)
- Magnetic Properties of Pseudo-Iron Fe_(Cr_Ni_)_x Ternary Alloys
- Magnetic Diffuse Scattering of Neutrons from Fe-Ni Invar Alloy
- Morphology of Distant Galaxies
- A New Method of Making Science : Its Application to Astrometric Science
- Principal Component Analysis for a Dynamical System of Emigration
- Estimation of Distances to the Red Giant Stars
- Basic Method of Dynamic Modeling of the Global Change
- Topological Structure of Mind
- Theoretical and Empirical Construction of a Dynamical System
- Multidimensional Representation of a Dynamical System : Global Environment
- Paradox as Basis of Science
- Ice Thickness in the Arctic Sea