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Related papers: Polytropic behavior in the structures of Interplan…

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The thermodynamics of interplanetary coronal mass ejections (ICMEs) is often described using a polytropic process. Estimating the polytopic index ($\gamma$) allows us to quantify the expansion or compression of the ICME plasma arising from…

Solar and Stellar Astrophysics · Physics 2025-07-24 Debesh Bhattacharjee , Saikat Majumder , Prasad Subramanian

Interplanetary Coronal Mass Ejections (ICMEs) and High Speed Streams (HSSs) are noteworthy drivers of disturbance of interplanetary space. Interaction between them can cause several phenomena, such as; generation of waves, enhanced…

Space Physics · Physics 2022-10-11 Kalpesh Ghag , Anil Raghav , Zubair Shaikh , Georgios Nicolaou , Omkar Dhamane , Utsav Panchal

Interplanetary coronal mass ejections (ICMEs) are major drivers of heliospheric variability and can produce prolonged disturbances near Earth. Understanding their thermodynamic evolution is crucial for assessing their heat budget and…

Solar and Stellar Astrophysics · Physics 2025-12-18 Soumyaranjan Khuntia , Wageesh Mishra

Understanding the thermal and turbulence properties of interplanetary coronal mass ejections (ICMEs) is essential for analyzing their evolution and interactions with the surrounding medium. This study explores these characteristics across…

Solar and Stellar Astrophysics · Physics 2025-05-27 Soumyaranjan Khuntia , Wageesh Mishra

In this paper, a generic self-similar flux rope model is proposed to probe the internal state of CMEs in order to understand the thermodynamic process and expansion of CMEs in interplanetary space. Using this model, three physical…

Solar and Stellar Astrophysics · Physics 2014-11-20 Yuming Wang , Jie Zhang , Chenglong Shen

We find that the sheath regions between fast interplanetary coronal mass ejections (ICMEs) and their preceding shocks are often characterized by plasma depletion and mirror wave structures, analogous to planetary magnetosheaths. A case…

Space Physics · Physics 2007-05-23 Y. Liu , J. D. Richardson , J. W. Belcher , J. C. Kasper , R. M. Skoug

Solar wind measurements carried out by NASA's Wind spacecraft before, during and after the passing of an interplanetary coronal mass ejection (ICME) detected on 12-14 September 2014 have been used in order to examine several properties of…

Space Physics · Physics 2023-04-19 Roque Márquez Rodríguez , Luca Sorriso-Valvo , Emiliya Yordanova

Earlier studies on Coronal Mass Ejections (CMEs), using remote sensing and in situ observations, have attempted to determine some of the internal properties of CMEs, which were limited to a certain position or a certain time. For…

Solar and Stellar Astrophysics · Physics 2018-10-10 Wageesh Mishra , Yuming Wang

For the period July 2003 to August 2010, the interplanetary coronal mass ejection (ICME) catalogue maintained by Richardson and Cane lists 106 Earth-directed events, which have been measured in-situ by plasma and field instruments onboard…

Earth and Planetary Astrophysics · Physics 2015-10-14 S. Krauss , M. Temmer , A. M. Veronig , O. Baur , H. Lammer

Understanding turbulence in interplanetary coronal mass ejections (ICMEs) is fundamental to space plasma research and critical for assessing the impact of space weather on geospace. Turbulence governs energy cascade, plasma heating,…

Solar and Stellar Astrophysics · Physics 2026-04-29 Shibotosh Biswas , Ankush Bhaskar , SG Abitha , Omkar Dhamane , Sanchita Pal , Dibyendu Chakrabarty , Vipin K Yadav

Coronal mass ejections (CMEs) are large-scale expulsions of plasma and magnetic flux from the Sun's corona into the heliosphere. In interplanetary space they are referred to as interplanetary CMEs (ICMEs), often characterised by a shock, a…

Solar and Stellar Astrophysics · Physics 2026-04-03 Akanksha Dagore , Giuseppe Prete , Vincenzo Capparelli , Vincenzo Carbone , Fabio Lepreti

Observations of slow magneto-acoustic waves have been demonstrated to possess a number of applications in coronal seismology. Determination of the polytropic index ($\gamma$) is one such important application. Analysing the amplitudes of…

Solar and Stellar Astrophysics · Physics 2018-12-12 S. Krishna Prasad , J. O. Raes , T. Van Doorsselaere , N. Magyar , D. B. Jess

The interplanetary coronal mass ejections (ICMEs) can pose significant impacts on the Martian ionosphere, resulting in plasma depletion, variability, and escape to space. However, the connections between the ICMEs and the associated…

Space Physics · Physics 2023-11-07 L. Ram , D. Rout , R. Rathi , P. Withers , S. Sarkhel

Fast interplanetary coronal mass ejections (interplanetary CMEs, or ICMEs) are the drivers of strongest space weather storms such as solar energetic particle events and geomagnetic storms. The connection between space weather impacting…

Solar and Stellar Astrophysics · Physics 2017-03-15 Takuya Takahashi , Kazunari Shibata

The state of the space environment plays a significant role for forecasting of geomagnetic storms produced by disturbances of the solar wind (SW). Coronal mass ejections (CMEs) passing through the heliosphere often have a prolonged (up to…

Space Physics · Physics 2022-04-27 Vladimir Slemzin , Farid Goryaev , Denis Rodkin

Intermittency has been studied extensively in the fast and slow solar winds but to a far lesser extent in interplanetary coronal mass ejections (ICMEs). While ICMEs are often characterized by their relatively smooth, large-scale magnetic…

Solar and Stellar Astrophysics · Physics 2025-07-08 Julia Ruohotie , Simon Good , Christian Möstl , Emilia Kilpua

Intervals of enhanced turbulent fluctuations are typically less frequent within the magnetic cloud region of an interplanetary coronal mass ejection (ICME). We investigate two such intervals inside an ICME observed by the \textit{Wind}…

Coronal Mass Ejections (CMEs) are the most energetic expulsions of magnetized plasma from the Sun that play a crucial role in space weather dynamics. This study investigates the diverse kinematics and thermodynamic evolution of two CMEs…

Solar and Stellar Astrophysics · Physics 2023-10-11 Soumyaranjan Khuntia , Wageesh Mishra , Sudheer K Mishra , Yuming Wang , Jie Zhang , Shaoyu Lyu

Aims: We statistically investigate the plasma and magnetic field characteristics of the upstream regions of interplanetary coronal mass ejections (ICMEs) and their evolution as function of distance to the Sun in the inner heliosphere. We…

Solar and Stellar Astrophysics · Physics 2022-09-14 Manuela Temmer , Volker Bothmer

We investigate the kinetic properties of a typical fast-mode shock inside an interplanetary coronal mass ejection (ICME) observed on 1998 August 6 at 1 AU, including particle distributions and wave analysis with the in situ measurements…

Solar and Stellar Astrophysics · Physics 2018-05-30 Mingzhe Liu , Ying D. Liu , Zhongwei Yang , L. B. Wilson , Huidong Hu
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