10 papers
Local Interstellar Flow Parameters from the First Intersection of IMAP-Lo's Parameter Tubes
Nathan A. Schwadron, Mitchell M. Shen, Fatemeh Rahmanifard +24
The Sun's motion through the interstellar medium creates a flow of interstellar neutral (ISN) atoms through the heliosphere. ISN He, due to its high universal abundance and relativ…
Turbulence and its Potential Impact on Solar Chromospheric and Coronal Heating
Gary P. Zank, Xiaocan Li, Krishna Khanal +8
Low-frequency turbulence in the solar chromosphere remains poorly understood. We address 1) the sources of low-frequency turbulence that potentially heat the chromosphere, and 2) h…
Proton Temperature Anisotropy Across Interplanetary Shocks: A Statistical Analysis with WIND observations
Zeping Jin, Lingling Zhao, Xingyu Zhu +6
Interplanetary (IP) shocks efficiently modify the proton temperature anisotropy of the solar wind. Analyzing ~800 IP shocks observed by the Wind spacecraft from 1997-2024, we prese…
Conversion Layer Controls the Evolution of Magnetic Deflections Near the Alfven Surface
Dominic Payne, Mojtaba Akhavan-Tafti, Joshua Goodwill +10
We examine the statistics of Alfvenic deflections in both sub-Alfvenic and super-Alfvenic solar wind with particular focus on a common parameter that underlies the definition of sw…
Nature of Transonic Sub-Alfvénic Turbulence and Density Fluctuations in the Near-Sun Solar Wind: Insights from Magnetohydrodynamic Simulations and Nearly-Incompressible Models
Giuseppe Arrò, Hui Li, Gary P. Zank +2
Recent Parker Solar Probe measurements have revealed that solar wind (SW) turbulence transits from a subsonic to a transonic regime near the Sun, while remaining sub-Alfvénic. The…
Parallel and perpendicular diffusion of energetic particles in the near-Sun solar wind observed by Parker Solar Probe
Nibuna Siranjeevi Madam Subashchandar, Lingling Zhao, Andreas Shalchi +6
We investigate energetic particle diffusion in the inner heliosphere (approximately 0.06-0.3 AU) explored by Parker Solar Probe (PSP). Parallel (kappa_parallel) and perpendicular (…