Geometry of an interplanetary CME on October 29, 2003 deduced from cosmic rays

被引：37

作者：

Kuwabara, T ^{[1
]}

Munakata, K

Yasue, S

Kato, C

Akahane, S

Koyama, M

Bieber, JW

Evenson, P

Pyle, R

Fujii, Z

Tokumaru, M

Kojima, M

Marubashi, K

Duldig, ML

Humble, JE

Silva, MR

Trivedi, NB

Gonzalez, WD

Schuch, NJ

机构：

[1] Shinshu Univ, Dept Phys, Matsumoto, Nagano 3908621, Japan

[2] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA

[3] Australian Antarctic Div, Kingston, Tas 7050, Australia

[4] Nagoya Univ, Solar Terr Environm Lab, Aichi 4648601, Japan

[5] Natl Inst Space Res, So Reg Space Res Ctr, OES CRSPE INPE, BR-97110970 Santa Maria, RS, Brazil

[6] Univ Tasmania, Sch Math & Phys, Hobart, Tas 7001, Australia

[7] Natl Inst Informat & Commun Technol, Tokyo 1848795, Japan

来源：

GEOPHYSICAL RESEARCH LETTERS | 2004年 / 31卷 / 19期

关键词：

D O I：

10.1029/2004GL020803

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A coronal mass ejection (CME) associated with an X17 solar flare reached Earth on October 29, 2003, causing an similar to11% decrease in the intensity of high-energy Galactic cosmic rays recorded by muon detectors. The CME also produced a strong enhancement of the cosmic ray directional anisotropy. Based upon a simple inclined cylinder model, we use the anisotropy data to derive for the first time the three-dimensional geometry of the cosmic ray depleted region formed behind the shock in this event. We also compare the geometry derived from cosmic rays with that derived from in situ interplanetary magnetic field (IMF) observations using a Magnetic Flux Rope model.

引用

页码：L198031 / 5

页数：5

共 9 条

[1] CME geometry in relation to cosmic ray anisotropy [J].

Bieber, JW ;

Evenson, P .

GEOPHYSICAL RESEARCH LETTERS, 1998, 25 (15) :2955-2958

[2] Coronal mass ejections and forbush decreases [J].

Cane, HV .

SPACE SCIENCE REVIEWS, 2000, 93 (1-2) :55-77

[3]

FUJIMOTO K, 1984, 9 COSM RAY RES LAB

[4]

IHARA A, 2003, 28 INT COSM RAY C, V6, P3557

[5] Physics of interplanetary magnetic flux ropes: Toward prediction of geomagnetic storms [J].

Marubashi, K .

SPACE WEATHER: PHYSICS AND APPLICATIONS, 2000, 26 (01) :55-66

[6] Precursors of geomagnetic storms observed by the muon detector network [J].

Munakata, K ;

Bieber, JW ;

Yasue, S ;

Kato, C ;

Koyama, M ;

Akahane, S ;

Fujimoto, K ;

Fujii, Z ;

Humble, JE ;

Duldig, ML .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2000, 105 (A12) :27457-27468

[7]

MUNAKATA K, 2003, 28 INT COSM RAY C, V6, P3561

[8]

MUNAKATA K, 2001, 27 INT COSM RAY C, V9, P3494

[9]

MUNAKATA K, 2004, IN PRESS ADV SPACE R

← 1 →