David J. McComas

Evolution and Geometry of the Heliotail across 14 yr of IBEX-Hi Observations (2009–2022): A Baseline for IMAP-era Heliotail Studies

Abstract IBEX-Hi observed four heliotail lobes above ∼2 keV: the energetic neutral atom (ENA)-suppressed port (P) and starboard (SB) near the ecliptic and the ENA-enhanced north (N) and south (S) at midlatitudes. They trace how the latitude-dependent solar wind (SW) and solar and...

Stationarity measure of solar wind in the outer heliosphere

The thermodynamic behavior of the solar wind (SW), particularly under non-Maxwellian conditions, is often described by kappa distributions. However, the role of pickup ions (PUIs) and their impact on thermodynamic stationarity in the outer heliosphere remains insufficiently quant...