Research Highlights
Research Highlights
Local Time Variability of Gravity Wave Activity Revealed by SABER Temperature Observations
D. Koshin, N. M. Pedatella, A. K. Smith, and H.-L. Liu investigate diurnal variability in gravity wave activity, which is an indication of the interaction between gravity waves and tides using satellite observations
MHD simulations of CME with associated prominence eruption
Yuhong Fan uses magnetohydrodynamic (MHD) simulations to find the formation of a prominence-cavity system that qualitatively reproduces several observed features including the cavity, the prominence “horns”, and the central “cavity” enclosed in the “horns” above the prominence.
Efficiency of Electromagnetic Energy Transfer from Solar Wind to Ionosphere through Magnetospheric Ultra-Low Frequency Waves
Dong Lin, Michael Hartinger, William Lotko, Wenbin Wang, Xueling Shi, Bharat Kunduri, Viacheslav Merkin, Kareem Sorathia, Kevin Pham, and Michael Wiltberger use a first-principles computational model that can resolve the fundamental physics related to the low frequency plasma waves, to carry out idealized numerical experiments to investigate the electromagnetic energy flow in response to undulating solar wind. The theoretical study provides new understanding of the significance of the electromagnetic energy flow and its dependence on different parameters.
The ASPIICS solar coronagraph aboard the Proba-3 formation flying mission. Scientific objectives and instrument design
Sarah Gibson, et. al. describe the scientific objectives and instrument design of the ASPIICS coronagraph launched aboard the Proba-3 mission of the European Space Agency (ESA) on 5 December 2024.
The Long-term Trend of Thermospheric Compositions from Whole Atmospheric Simulation and Satellite Observation
Chih-Ting Hsu, Wenbin Wang, Liying Qian, Ercha Aa, Joe Mclnerney, Shun-Rong Zhang, Yongliang Zhang, Anastasia Newheart, Dong Lin examine the long-term trend of column-integrated atomic oxygen to molecular nitrogen ratio, O/N2, in the upper atmosphere and investigates the cause of this long-term trend in O/N2.
Analysis Of Short-term Solar Activity Variability and Estimating Timings of Next Enhanced Bursts
Juie Shetye and Mausumi Dikpati present a novel machine-learning-based hybrid forecasting strategy for predicting next enhanced burst of solar activity. This hybrid forecast-system combines numerical, statistical, and machine-learning techniques to detect the occurrence of the next bursts of solar activity.
The Yin-Yang Magnetic Flux Eruption (Yin-Yang-MFE) Code: A Global Corona Magnetohydrodynamic Code with the Yin-Yang grid
Hongyang Luo and Yuhong Fan describe the numerical algorithms of a global magnetohydrodynamic (MHD) code utilizing the Yin-Yang grid, called the Yin-Yang Magnetic Flux Eruption (Yin-Yang-MFE) code, suitable for modeling the large-scale dynamical processes of the solar corona and the solar wind. It is a single-fluid MHD code taking into account the non-adiabatic effects of the solar corona, including the electron heat conduction, optically thin radiative cooling, and empirical coronal heating.
Using the Hanle Effect in Mg II k to Quantify the Open Flux above the Solar Poles
Ryan A. Hofmann, David Afonso Delgado, Rebecca Centeno, Roberto Casini, Matthias Rempel, Tanausu del Pino Aleman test the use of the Mg II resonant lines for measurement of the magnetic field at the top of the chromosphere of polar coronal holes (CHs).
The Striated Solar Photosphere Observed at 0.″03 Resolution
Matthias Rempel, et al., analyze images acquired with the Visible Broadband Imager using the G-band channel to investigate the characteristics of fine-scale striations in the photosphere and compare them with state-of-the-art radiation-MHD simulations at similar spatial resolution. The striation patterns can be used as valuable diagnostics for studying the finest-scale structure of the photospheric magnetic field.