抄録
Rapid fluctuation with a frequency dependence of 1/fα (with α ≃ 1-2) is characteristic of radiation from black-hole objects. Its origin remains poorly understood. We examined three-dimensional magnetohydrodynamical simulation data, finding that a magnetized accretion disk exhibits both 1/fα fluctuation (with α ≃ 2) and a fractal magnetic structure (with the fractal dimension of D ∼ 1.9). The fractal field configuration leads to reconnection events with a variety of released energy and duration, thereby producing 1/fα fluctuations.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | L1-L4 |
| ジャーナル | Publications of the Astronomical Society of Japan |
| 巻 | 52 |
| 発行部数 | 1 |
| DOI | |
| 出版物ステータス | 出版済み - 1 1 2000 |
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All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science
これを引用
Temporal 1/fα fluctuations from fractal magnetic fields in black-hole accretion flow. / Kawaguchi, Toshihiro; Mineshige, Shin; Machida, Mami; Matsumoto, Ryoji; Shibata, Kazunari.
：: Publications of the Astronomical Society of Japan, 巻 52, 番号 1, 01.01.2000, p. L1-L4.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Temporal 1/fα fluctuations from fractal magnetic fields in black-hole accretion flow
AU - Kawaguchi, Toshihiro
AU - Mineshige, Shin
AU - Machida, Mami
AU - Matsumoto, Ryoji
AU - Shibata, Kazunari
PY - 2000/1/1
Y1 - 2000/1/1
N2 - Rapid fluctuation with a frequency dependence of 1/fα (with α ≃ 1-2) is characteristic of radiation from black-hole objects. Its origin remains poorly understood. We examined three-dimensional magnetohydrodynamical simulation data, finding that a magnetized accretion disk exhibits both 1/fα fluctuation (with α ≃ 2) and a fractal magnetic structure (with the fractal dimension of D ∼ 1.9). The fractal field configuration leads to reconnection events with a variety of released energy and duration, thereby producing 1/fα fluctuations.
AB - Rapid fluctuation with a frequency dependence of 1/fα (with α ≃ 1-2) is characteristic of radiation from black-hole objects. Its origin remains poorly understood. We examined three-dimensional magnetohydrodynamical simulation data, finding that a magnetized accretion disk exhibits both 1/fα fluctuation (with α ≃ 2) and a fractal magnetic structure (with the fractal dimension of D ∼ 1.9). The fractal field configuration leads to reconnection events with a variety of released energy and duration, thereby producing 1/fα fluctuations.
UR - http://www.scopus.com/inward/record.url?scp=0002788584&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0002788584&partnerID=8YFLogxK
U2 - 10.1093/pasj/52.1.L1
DO - 10.1093/pasj/52.1.L1
M3 - Article
AN - SCOPUS:0002788584
VL - 52
SP - L1-L4
JO - Publication of the Astronomical Society of Japan
JF - Publication of the Astronomical Society of Japan
SN - 0004-6264
IS - 1
ER -