Zobrazeno 1 - 10
of 158
pro vyhledávání: '"Cheung, Mark C."'
Studying the magnetic field properties on the solar surface is crucial for understanding the solar and heliospheric activities, which in turn shape space weather in the solar system. Surface Flux Transport (SFT) modelling helps us to simulate and ana
Externí odkaz:
http://arxiv.org/abs/2409.01744
We present a new simulation setup using the MURaM radiative Magnetohydrodynamic (MHD) code that allows to study the formation of collisional polarity inversion lines (cPILs) in the photosphere and the coronal response including flares. In this scheme
Externí odkaz:
http://arxiv.org/abs/2303.05299
We review the surface flux transport model for the evolution of magnetic flux patterns on the Sun's surface. Our underlying motivation is to understand the model's prediction of the polar field (or axial dipole) strength at the end of the solar cycle
Externí odkaz:
http://arxiv.org/abs/2303.01209
Autor:
Barnes, Graham, DeRosa, Marc L., Jones, Shaela I., Arge, Charles N., Henney, Carl J., Cheung, Mark C. M.
The concept of surface-flux transport (SFT) is commonly used in evolving models of the large-scale solar surface magnetic field. These photospheric models are used to determine the large-scale structure of the overlying coronal magnetic field, as wel
Externí odkaz:
http://arxiv.org/abs/2302.06496
We present a method of conducting data-driven simulations of solar active regions and flux emergence with the MURaM radiative magnetohydrodynamics (MHD) code. The horizontal electric field derived from the full velocity and magnetic vectors, is imple
Externí odkaz:
http://arxiv.org/abs/2301.07621
Autor:
Bobra, Monica G., Barnes, Will T., Chen, Thomas Y., Cheung, Mark C. M., Hayes, Laura A., Ireland, Jack, Janvier, Miho, Kirk, Michael S. F., Mason, James P., Mumford, Stuart J., Wright, Paul J.
We recommend that NASA maintain and fund science platforms that enable interactive and scalable data analysis in order to maximize the scientific return of data collected from space-based instruments.
Comment: Heliophysics 2050 White Paper
Comment: Heliophysics 2050 White Paper
Externí odkaz:
http://arxiv.org/abs/2301.00878
Autor:
Mandal, Sudip, Peter, Hardi, Chitta, Lakshmi Pradeep, Cuadrado, Regina A., Schühle, Udo, Teriaca, Luca, Solanki, Sami K., Harra, Louise, Berghmans, David, Auchère, Frédéric, Parenti, Susanna, Zhukov, Andrei N., Buchlin, Éric, Verbeeck, Cis, Kraaikamp, Emil, Rodriguez, Luciano, Long, David M., Schwanitz, Conrad, Barczynski, Krzysztof, Pelouze, Gabriel, Smith, Philip J., Liu, Wei, Cheung, Mark C.
Publikováno v:
A&A 670, L3 (2023)
The solar chromosphere hosts a wide variety of transients, including dynamic fibrils (DFs) that are characterised as elongated, jet-like features seen in active regions, often through H$\alpha$ diagnostics. So far, these features have been difficult
Externí odkaz:
http://arxiv.org/abs/2212.05025
Autor:
Panesar, Navdeep K., Hansteen, Viggo H., Tiwari, Sanjiv K., Cheung, Mark C. M., Berghmans, David, Müller, Daniel
We report high-resolution, high-cadence observations of five small-scale coronal jets in an on-disk quiet Sun region observed with Solar Orbiter's EUI/\hri\ in 174 \AA. We combine the \hri\ images with the EUV images of SDO/AIA and investigate magnet
Externí odkaz:
http://arxiv.org/abs/2211.06529
Autor:
Salvatelli, Valentina, Santos, Luiz F. G. dos, Bose, Souvik, Neuberg, Brad, Cheung, Mark C. M., Janvier, Miho, Jin, Meng, Gal, Yarin, Baydin, Atilim Gunes
Publikováno v:
ApJ 937 (2022) 100
The Solar Dynamics Observatory (SDO), a NASA multi-spectral decade-long mission that has been daily producing terabytes of observational data from the Sun, has been recently used as a use-case to demonstrate the potential of machine learning methodol
Externí odkaz:
http://arxiv.org/abs/2208.09512
Autor:
Upendran, Vishal, Tigas, Panagiotis, Ferdousi, Banafsheh, Bloch, Teo, Cheung, Mark C. M., Ganju, Siddha, Bhatt, Asti, McGranaghan, Ryan M., Gal, Yarin
Geomagnetically Induced Currents (GICs) arise from spatio-temporal changes to Earth's magnetic field which arise from the interaction of the solar wind with Earth's magnetosphere, and drive catastrophic destruction to our technologically dependent so
Externí odkaz:
http://arxiv.org/abs/2205.12734