296 citations · 1.5k across the 42 of their papers we have counts for
42 papers
Observed Power and Frequency Variations of Solar Rossby Waves with Solar Cycles
M. Waidele, Junwei Zhao
Several recent studies utilizing different helioseismic methods have confirmed the presence of large-scale vorticity waves known as solar Rossby waves within the Sun. Rossby waves…
Assessing the Observability of Deep Meridional Flow Cells in the Solar Interior
J. R. Fuentes, Bradley W. Hindman, Junwei Zhao +6
Meridional circulation regulates the Sun's interior dynamics and magnetism. While it is well accepted that meridional flows are poleward at the Sun's surface, helioseismic observat…
Non-zero phase-shifts of acoustic waves in the lower solar atmosphere measured from realistic simulations and their role in local helioseismology
M. Waidele, Junwei Zhao, I. N. Kitiashvili
Previous studies analyzing the evanescent nature of acoustic waves in the lower solar atmosphere, up to 300\,km above the photosphere, have shown an unexpected phase shift of an or…
Inferring Maps of the Sun's Far-side Unsigned Magnetic Flux from Far-side Helioseismic Images using Machine Learning Techniques
Ruizhu Chen, Junwei Zhao, Shea Hess Webber +3
Accurate modeling of the Sun's coronal magnetic field and solar wind structures require inputs of the solar global magnetic field, including both the near and far sides, but the Su…
Phase Shifts Measured in Evanescent Acoustic Waves above the Solar Photosphere and Their Possible Impacts to Local Helioseismology
Junwei Zhao, S. P. Rajaguru, Ruizhu Chen
A set of 464-min high-resolution high-cadence observations were acquired for a region near the Sun's disk center using the Interferometric BI-dimensional Spectrometer (IBIS) instal…
Long-Term Variation of Helioseismic Far-Side Images and What Causes It
Junwei Zhao, Grace Y. Jing, Ruizhu Chen
A new time--distance far-side imaging technique was recently developed by utilizing multiple multi-skip acoustic waves. The measurement procedure is applied to 11 years of Doppler…