8 citations · 18 across the 6 of their papers we have counts for
6 papers
Characterizing the Observational Properties of the Sun's High-latitude m=1 Inertial Mode
Boyang Ding, Junwei Zhao, Ruizhu Chen +3
Low-m inertial modes have been recently discovered in the Sun's high-latitude regions. In this study, we characterize the observational properties of the m = 1 mode by analyzing ti…
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…
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…
On Strengthening of the Solar f-mode Prior to Active Region Emergence Using the Fourier-Hankel Analysis
Matthias Waidele, Markus Roth, Nishant Singh +1
Recent results of Singh et al. (2016) show that the emergence of an active region (AR) can be seen in a strengthening of the f-mode power up to two days prior of the region's forma…
Absorption of high frequency oscillations and its relation to emissivity reduction
Matthias Waidele, Markus Roth, Gangadharan Vigeesh +1
Sunspots are known to be strong absorbers of solar oscillation modal power. The most convincing way to demonstrate this is done via Fourier-Hankel decomposition (FHD), where the lo…
Investigation of surface effects of simple flux tubes using numerical simulations
M. Waidele, M. Roth
We use the SPARC code for MHD simulations with monolithic flux tubes of varying subsurface topology. Our studies involve the interactions of waves caused by a single source with su…