5 papers
Spherically Polarized Alfvén Waves and the Gosling Boost
Yuliang Ding, Marco Velli, Zesen Huang +6
Alfvén waves are thought to play critical roles in solar wind acceleration and plasma heating in the solar corona and inner heliosphere. Parker Solar Probe (PSP) has highlighted th…
Radial Evolution of Near-Sun Magnetic Switchbacks Alfvenicity, Occurrence Rate, and Size
Xiaolei Li, Chen Shi, Yuliang Ding
Magnetic switchbacks, characterized by reversals of magnetic field direction, are widely observed in the inner heliosphere by Parker Solar Probe (PSP). With PSP reaching perihelia…
What are Switchbacks?
Zesen Huang, Marco Velli, Yuliang Ding
We present a solitary Alfvén wave model that exhibits nontrivial three-dimensional twisting of open magnetic field lines while preserving constant . Embedded rotational discon…
Solitary Alfvén Waves
Zesen Huang, Marco Velli, Chen Shi +1
We present the solitary Alfvén wave as an ideal nonlinear Alfvénic solution in the solitary far-field limit and construct a three-dimensional numerical model -- an \emph{Alfvénon}.…
In situ Evidence of 5-minute Oscillations from Parker Solar Probe
Zesen Huang, Marco Velli, Olga Panasenco +19
The Sun's surface vibrates in characteristic 5-minute oscillations, known as p-modes, generated by sound waves trapped within the convection zone. Although these oscillations have…