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相关论文: Intermittency in Interplanetary Coronal Mass Eject…

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Interplanetary magnetic field magnitude fluctuations are notoriously more intermittent than velocity fluctuations in both fast and slow wind. This behaviour has been interpreted in terms of the anomalous scaling observed in passive scalars…

天体物理学 · 物理学 2009-11-13 Roberto Bruno , Vincenzo Carbone , Sandra Chapman , Bogdan Hnat , Alain Noullez , Luca Sorriso-Valvo

We report on the parallel analysis of the periodic behaviour of coronal mass ejections (CMEs) based on 21 years [1996 -- 2016] of observations with the SOHO/LASCO--C2 coronagraph, solar flares, prominences, and several proxies of solar…

太阳与恒星天体物理 · 物理学 2018-08-15 Tatiana Barlyaeva , Julien Wojak , Philippe Lamy , Brice Boclet , Imre Toth

In order to have a comprehensive view of the propagation and evolution of coronal mass ejections (CMEs) from the Sun to deep interplanetary space beyond 1 au, we carry out a kinematic analysis of 7 CMEs in solar cycle 23. The events are…

太阳与恒星天体物理 · 物理学 2019-09-25 Xiaowei Zhao , Ying D. Liu , Huidong Hu , Rui Wang

Interplanetary coronal mass ejections (ICMEs) are one of the main drivers for space weather disturbances. In the past, different approaches have been used to automatically detect events in existing time series resulting from solar wind in…

We present a new approach to combine remote observations and in situ data by STEREO/HI and Wind, respectively, to derive the kinematics and propagation directions of interplanetary coronal mass ejections (ICMEs). We used two methods,…

太阳与恒星天体物理 · 物理学 2012-02-07 T. Rollett , C. Möstl , M. Temmer , A. M. Veronig , C. J. Farrugia , H. K. Biernat

Propagation of coronal mass ejections (CMEs) from the Sun far into interplanetary space is not well understood due to limited observations. In this study we examine the propagation characteristics of two geo-effective CMEs, which occurred…

太阳与恒星天体物理 · 物理学 2017-03-08 Xiaowei Zhao , Ying D. Liu , Huidong Hu , Rui Wang

Using in situ measurements and remote-sensing observations, we study a coronal mass ejection (CME) that left the Sun on 9 July 2013 and impacted both Mercury and Earth while the planets were in radial alignment (within $3^\circ$). The CME…

空间物理 · 物理学 2020-05-06 N. Lugaz , R. M. Winslow , C. J. Farrugia

Interplanetary coronal mass ejections (ICMEs) often consist of a shock wave, sheath region, and ejecta region. The ejecta regions are divided into two broad classes: magnetic clouds (MC) that exhibit the characteristics of magnetic flux…

太阳与恒星天体物理 · 物理学 2020-09-30 Hongqiang Song , Jie Zhang , Xin Cheng , Gang Li , Qiang Hu , Leping Li , Shujun Chen , Ruisheng Zheng , Yao Chen

We investigate the relation between Forbush cosmic ray decrease recovery time and coronal mass ejection transit time between the Sun and Earth. We identify 17 Forbush decreases from ground based neutron count rates between 1978 and 2003…

天体物理学 · 物理学 2015-06-24 Robert F. Penna , Alice C. Quillen

In this paper, we review the preliminary results on the propagation effects and interplanetary consequences of fast and wide coronal mass ejection (CME) events, occurred during 18--25 June 2015, in the Sun-Earth distance range. The…

太阳与恒星天体物理 · 物理学 2016-03-14 P. K. Manoharan , D. Maia , A. Johri , M. S. Induja

We present here an overview of an important solar phenomenon with major implication for space weather and planetary life. The coronal mass ejections (CMEs) come from the Sun and expand in the heliosphere, becoming interplanetary coronal…

太阳与恒星天体物理 · 物理学 2014-06-13 Cristiana Dumitrache , Nedelia A. Popescu

The large scale features of the solar wind are examined in order to predict small scale features of turbulence in unexplored regions of the heliosphere. The strategy is to examine how system size, or effective Reynolds number, varies, and…

空间物理 · 物理学 2019-11-06 Tulasi N. Parashar , Manuel Cuesta , William H. Matthaeus

We present hydrodynamical simulations of interacting Coronal Mass Ejections in the Interplanetary medium (ICMEs). In these events, two consecutive CMEs are launched from the Sun in similar directions within an interval of time of a few…

太阳与恒星天体物理 · 物理学 2018-01-11 Tatiana Niembro , Alejandro Lara , Ricardo F. González , J. Cantó

We have investigated how the degree of imbalance in solar wind turbulence is modified by large-scale velocity shears in the solar wind plasma. The balance between counterpropagating Alfv\'enic fluctuations, which interact nonlinearly to…

空间物理 · 物理学 2023-03-29 Juska E. Soljento , Simon W. Good , Adnane Osmane , Emilia K. J. Kilpua

Sheaths ahead of coronal mass ejections (CMEs) are large heliospheric structures that form with CME expansion and propagation. Turbulent and compressed sheaths contribute to the acceleration of particles in the corona and in interplanetary…

As an important source for large geomagnetic storms, an "ICME-in-sheath" is a completely shocked interplanetary coronal mass ejection (ICME) stuck in the sheath between a shock and host ejecta. Typical characteristics are identified from…

太阳与恒星天体物理 · 物理学 2020-07-08 Ying D. Liu , Chong Chen , Xiaowei Zhao

Directly tracking an interplanetary coronal mass ejection (ICME) by widely separated spacecrafts is a great challenge. However, such an event could provide us a good opportunity to study the evolution of embedded Alfv\'enic fluctuations…

空间物理 · 物理学 2017-12-20 Hui Li , Chi Wang , John D. Richardson , Cui Tu

Coronal Mass Ejections (CMEs) are large-scale eruptions from the Sun into interplanetary space. Despite being major space weather drivers, our knowledge of the CME properties in the inner heliosphere remains constrained by the scarcity of…

太阳与恒星天体物理 · 物理学 2021-05-12 Camilla Scolini , Sergio Dasso , Luciano Rodriguez , Andrei N. Zhukov , Stefaan Poedts

The relative importance of different initiation mechanisms for coronal mass ejections (CMEs) on the Sun is uncertain. One possible mechanism is the loss of equilibrium of coronal magnetic flux ropes formed gradually by large-scale surface…

太阳与恒星天体物理 · 物理学 2014-11-20 A. R. Yeates , G. D. R. Attrill , Dibyendu Nandy , D. H. Mackay , P. C. H. Martens , A. A. van Ballegooijen

Interplanetary coronal mass ejections (ICMEs) are the interplanetary manifestations of solar eruptions. The overtaken solar wind forms a sheath of compressed plasma at the front of ICMEs. Magnetic clouds (MCs) are a subset of ICMEs with…

太阳与恒星天体物理 · 物理学 2016-08-10 J. J. Masías-Meza , S. Dasso , P. Démoulin , L. Rodriguez , M. Janvier