English
Related papers

Related papers: Distinct polytropic behavior of plasma during ICME…

200 papers

Interplanetary space is characteristically structured mainly by high-speed solar wind streams emanating from coronal holes and transient disturbances such as coronal mass ejections (CMEs). While high-speed solar wind streams pose a…

Solar and Stellar Astrophysics · Physics 2017-02-01 Manuela Temmer , Martin A. Reiss , Ljubomir Nikolic , Stefan J. Hofmeister , Astrid M. Veronig

We present the first statistical analysis of complexity changes affecting the magnetic structure of interplanetary coronal mass ejections (ICMEs), with the aim of answering the questions: How frequently do ICMEs undergo magnetic complexity…

Solar and Stellar Astrophysics · Physics 2022-03-14 Camilla Scolini , Réka M. Winslow , Noé Lugaz , Tarik M. Salman , Emma E. Davies , Antoinette B. Galvin

In a two-week period between February and March of 2015, a series of interplanetary coronal mass ejections (ICMEs) and (solar energetic particles) SEPs made contact with Mars. The interactions were observed by several spacecraft, including…

Context: Late on 2013 August 19, a coronal mass ejection (CME) erupted from an active region located near the far-side central meridian from Earth's perspective. The event and its accompanying shock were remotely observed by the STEREO-A,…

We investigate the turbulent properties of 12 interplanetary coronal mass ejections (ICMEs) observed by Solar Orbiter between 0.29 and 1.0 AU. We analyze fluctuation power, spectral indices, break scales, and correlations between magnetic…

Solar and Stellar Astrophysics · Physics 2026-01-13 Jyoti Sheoran , Supratik Banerjee , Vaibhav Pant , Dipankar Banerjee , M. Saleem Khan

Coronal and interplanetary shock waves produced by coronal mass ejections (CMEs) are major drivers of space-weather phenomena, inducing major changes in the heliospheric radiation environment and directly perturbing the near-Earth…

Solar and Stellar Astrophysics · Physics 2023-04-12 Manon Jarry , Alexis P. Rouillard , Illya Plotnikov , Athanasios Kouloumvakos , Alexander Warmuth

We analyze proton bulk parameters derived from Ulysses observations and investigate the polytropic behavior of solar wind protons over a wide range of heliocentric distances and latitudes. The large-scale variations of the proton density…

Space Physics · Physics 2023-05-10 Georgios Nicolaou , George Livadiotis , David J. McComas

We report radial speed evolution of interplanetary coronal mass ejections (ICMEs) detected by the SOHO/LASCO coronagraph, interplanetary scintillation (IPS) at 327 MHz, and in-situ observations. In this study, we analyze solar wind…

Solar and Stellar Astrophysics · Physics 2014-12-09 Tomoya Iju , Munetoshi Tokumaru , Ken'ichi Fujiki

In situ observations of interplanetary (IP) coronal mass ejections (ICMEs) and IP shocks are important to study as they are the main components of the solar activity. Hundreds of IP shocks have been detected by various space missions at…

Despite helium abundance (AHe = nH/nHe) is ~ 8 % at the solar photospheric/chromospheric heights, AHe can be found to exceed 8% in interplanetary coronal mass ejections (ICMEs) on many occasions. Although various factors like interplanetary…

Solar and Stellar Astrophysics · Physics 2022-05-04 Yogesh , D. Chakrabarty , N. Srivastava

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

The dynamic evolution of coronal mass ejection (CME) in interplanetary space generates highly turbulent, compressed, and heated shock-sheath. This region furnishes a unique environment to study the turbulent fluctuations at the small scales…

Solar and Stellar Astrophysics · Physics 2022-09-13 Anil Raghav , Zubair Shaikh , Omkar Dhamane , Kalpesh Ghag , Prathmesh Tari , Utsav Panchal

The interaction between the radio plasma ejected by the active nucleus of a galaxy and the surrounding medium is a key process that can have a strong impact on the interstellar medium of the galaxy and hence on galaxy evolution. The closest…

Astrophysics of Galaxies · Physics 2015-11-10 F. Santoro , J. B. R. Oonk , R. Morganti , T. Oosterloo

In this work, we establish an ICME list from 1996 to 2014 based on the in-situ observations from the WIND and ACE satellites. Based on this ICME list, we extend the statistical analysis of the ICMEs to the solar maximum phase of solar cycle…

Solar and Stellar Astrophysics · Physics 2016-10-05 Yutian Chi , Chenglong Shen , Yuming Wang , Pinzhong Ye , S. Wang

We present multi-point in situ observations of a complex sequence of coronal mass ejections (CMEs) which may serve as a benchmark event for numerical and empirical space weather prediction models. On 2010 August 1, instruments on various…

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…

Solar and Stellar Astrophysics · Physics 2020-07-08 Ying D. Liu , Chong Chen , Xiaowei Zhao

Interplanetary coronal mass ejections (ICMEs) observed by the MESSENGER (MES) and Venus Express (VEX) spacecraft have been catalogued and analysed. The ICMEs were identified by a relatively smooth rotation of the magnetic field direction…

Space Physics · Physics 2016-01-20 S. W. Good , R. J. Forsyth

In collision-poor plasmas from space, e.g., the solar wind and planetary magnetospheres, the kinetic anisotropy of the plasma particles is expected to be regulated by the kinetic instabilities. Driven by an excess of ion (proton)…

Space Physics · Physics 2016-05-12 S. M. Shaaban , M. Lazar , S. Poedts , A. Elhanbaly

Interplanetary coronal mass ejections (ICMEs) have low proton beta across a broad range of heliocentric distances and a magnetic flux rope structure at large scales, making them a unique environment for studying solar wind fluctuations.…

Solar and Stellar Astrophysics · Physics 2023-10-17 S. W. Good , O. K. Rantala , A. -S. M. Jylhä , C. H. K. Chen , C. Möstl , E. K. J. Kilpua

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…

Solar and Stellar Astrophysics · Physics 2016-08-10 J. J. Masías-Meza , S. Dasso , P. Démoulin , L. Rodriguez , M. Janvier