The first computations of the compressible energy transfer rate from∼ 0.2 up to∼ 1.7 au is
obtained using Parker Solar Probe (PSP), Time History of Events and Macroscale …

We derive annual sky maps of the proton temperature in the inner heliosheath (IHS), and
track their temporal evolution over the years 2009–2016 of Interstellar Boundary Explorer …

The acceleration of the solar coronal plasma to supersonic speeds is one of the most
fundamental yet unresolved problems in heliophysics. Despite the success of Parker's …

Many questions remain about the compressibility of solar wind turbulence with respect to its
origins and properties. Low plasma beta (ratio of thermal to magnetic pressure) …

We present an observational analysis of the electron thermal energy budget using data from
Parker Solar Probe. We use the macroscopic moments, obtained from our fits to the …

We develop the kappa-tail fitting technique, which analyzes observations of power-law tails
of distributions and energy flux spectra, and connects them to theoretical modeling of kappa …

The paper develops a theoretical relationship between the polytropic index and the
temperature anisotropy that may characterize space plasmas. The derivation is based on the …

The solar wind is a magnetized and turbulent plasma. Its turbulence is often dominated by
Alfvénic fluctuations and often deemed as nearly incompressible far away from the Sun, as …

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 …

Alfvénic fluctuations are widespread and crucial in various physical processes of space &
astrophysical plasma. However, their role in heating and work done remains unexplored …