This review article summarizes the advancement in the studies of Earth-affecting solar
transients in the last decade that encompasses most of solar cycle 24. It is a part of the effort …

The polytropic behavior describes the relationship between macroscopic properties of
plasma species and provides useful information in understanding physical mechanisms in …

The polytropic process characterizes the thermodynamics of space plasma particle
populations. The polytropic index, γ, is particularly important as it describes the …

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 …

We model the observed charge states of the elements C, O, Mg, Si, and Fe in the ejecta of
coronal mass ejections (CMEs). We concentrate on" halo" CMEs observed in situ by the …

Context. Extreme-ultraviolet (EUV) observations provide considerable insight into evolving
physical conditions in the active solar atmosphere. For a prescribed density and temperature …

Most earlier studies have been limited to estimating the kinematic evolution of coronal mass
ejections (CMEs), and only limited efforts have been made to investigate their …

Interplanetary coronal mass ejections (ICMEs) are large-scale, coherent magnetic structures
that play a pivotal role in heliospheric dynamics and space weather phenomena. Although …

Understanding the evolution of radial sizes and instantaneous expansion speeds of coronal
mass ejections (CMEs) is crucial for assessing their impact duration on Earth's environment …

Abstract The ISWAT (International Space Weather Action Teams) heliosphere clusters H1
and H2 have a focus on interplanetary space and its characteristics, especially on the large …