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Temporal 1/f Fluctuations from Fractal Magnetic Fieldsin Black Hole Accretion Flow

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Temporal 1/f Fluctuations from Fractal Magnetic Fieldsin Black Hole Accretion Flow

Material type
文書・図像類
Author
松元, 亮治
Publisher
-
Publication date
-
Material Format
Digital
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NDC
440
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Note (General):

type:textRapid fluctuation with a frequency dependence of 1/f (with ' 1-2) is characteristic of radiationfrom black-hole objects. Its origin remains p...

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Material Type
文書・図像類
Author/Editor
松元, 亮治
Author Heading
Text Language Code
eng
NDC
Target Audience
一般
Note (General)
type:text
Rapid fluctuation with a frequency dependence of 1/f (with ' 1-2) is characteristic of radiationfrom black-hole objects. Its origin remains poorly understood. We examine the three-dimensional mag-netohydrodynamical (MHD) simulation data, finding that a magnetized accretion disk exhibits both 1/ffluctuation (with '2) and a fractal magnetic structure (with the fractal dimension of D1.9). The frac-tal field configuration leads reconnection events with a variety of released energy and of duration, therebyproducing 1/f fluctuations.
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