Coronal Mass Ejections and Non-recurrent Forbush Decreases

被引：80

作者：

Belov, A. ^{[1
]}

Abunin, A. ^{[1
]}

Abunina, M. ^{[1
]}

Eroshenko, E. ^{[1
]}

Oleneva, V. ^{[1
]}

Yanke, V. ^{[1
]}

Papaioannou, A. ^{[2
,3
]}

Mavromichalaki, H. ^{[2
]}

Gopalswamy, N. ^{[4
]}

Yashiro, S. ^{[5
]}

机构：

[1] Russian Acad Sci, IZMIRAN, Moscow, Russia

[2] Univ Athens, Dept Phys, Nucl & Particle Phys Sect, Athens 11528, Greece

[3] Natl Observ Athens, IAASARS, Athens, Greece

[4] NASA, GSFC, Heliophys Div, Greenbelt, MD 20771 USA

[5] Catholic Univ Amer, Washington, DC 20064 USA

来源：

SOLAR PHYSICS | 2014年 / 289卷 / 10期

关键词：

Forbush decreases; Coronal mass ejections; Solar wind; Interplanetary coronal mass ejections; Neutron monitors; COSMIC-RAY MODULATION; SOLAR-WIND DISTURBANCES; MISSION; STEREO; FLARES;

D O I：

10.1007/s11207-014-0534-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Coronal mass ejections (CMEs) and their interplanetary counterparts (interplanetary coronal mass ejections, ICMEs) are responsible for large solar energetic particle events and severe geomagnetic storms. They can modulate the intensity of Galactic cosmic rays, resulting in non-recurrent Forbush decreases (FDs). We investigate the connection between CME manifestations and FDs. We used specially processed data from the worldwide neutron monitor network to pinpoint the characteristics of the recorded FDs together with CME-related data from the detailed online catalog based upon the Solar and Heliospheric Observatory (SOHO)/Large Angle and Spectrometric Coronagraph (LASCO) data. We report on the correlations of the FD magnitude to the CME initial speed, the ICME transit speed, and the maximum solar wind speed. Comparisons between the features of CMEs (mass, width, velocity) and the characteristics of FDs are also discussed. FD features for halo, partial halo, and non-halo CMEs are presented and discussed.

引用

页码：3949 / 3960

页数：12

共 43 条

[1] Interactive database of cosmic ray anisotropy (DB-A10) [J].