Coronal Shock Waves, EUV Waves, and Their Relation to CMEs. III. Shock-Associated CME/EUV Wave in an Event with a Two-Component EUV Transient

被引：36

作者：

Grechnev, V. V. ^{[1
]}

Afanasyev, A. N. ^{[1
]}

Uralov, A. M. ^{[1
]}

Chertok, I. M. ^{[2
]}

Eselevich, M. V. ^{[1
]}

Eselevich, V. G. ^{[1
]}

Rudenko, G. V. ^{[1
]}

Kubo, Y. ^{[3
]}

机构：

[1] Inst Solar Terr Phys SB RAS, Irkutsk 664033, Russia

[2] Pushkov Inst Terr Magnetism Ionosphere & Radio Wa, Troitsk 142190, Moscow Region, Russia

[3] Natl Inst Informat & Commun Technol, Tokyo, Japan

来源：

SOLAR PHYSICS | 2011年 / 273卷 / 02期

关键词：

Coronal mass ejections; low coronal signatures; initiation and propagation; Radio bursts; type II; Waves; shock; EXTREME-ULTRAVIOLET WAVE; SOLAR ACTIVE-REGION; EIT WAVES; MORETON WAVES; QUADRATURE OBSERVATIONS; SOHO/EIT OBSERVATIONS; RADIO OBSERVATIONS; MAGNETIC-FIELD; MASS EJECTION; STEREO;

D O I：

10.1007/s11207-011-9781-y

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

On 17 January 2010, STEREO-B observed in extreme ultraviolet (EUV) and white light a large-scale dome-shaped expanding coronal transient with perfectly connected off-limb and on-disk signatures. Veronig et al. (Astrophys. J. Lett. 716, L57, 2010) concluded that the dome was formed by a weak shock wave. We have revealed two EUV components, one of which corresponded to this transient. All of its properties found from EUV, white light, and a metric type II burst match expectations for a freely expanding coronal shock wave, including correspondence with the fast-mode speed distribution, while the transient sweeping over the solar surface had a speed typical of EUV waves. The shock wave was presumably excited by an abrupt filament eruption. Both a weak shock approximation and a power-law fit match kinematics of the transient near the Sun. Moreover, the power-law fit matches the expansion of the CME leading edge up to 24 solar radii. The second, quasi-stationary EUV component near the dimming was presumably associated with a stretched CME structure; no indications of opening magnetic fields have been detected far from the eruption region.

引用

页码：461 / 477

页数：17

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