Zobrazeno 1 - 10
of 133
pro vyhledávání: '"Manchester, Ward"'
Autor:
Jin, Meng, Li, Gang, Nitta, Nariaki, Liu, Wei, Petrosian, Vahe, Manchester, Ward, Cohen, Christina, Effenberger, Frederic, Ding, Zheyi, Pesce-Rollins, Melissa, Omodei, Nicola, Gopalswamy, Nat
Shocks driven by coronal mass ejections (CMEs) are primary drivers of gradual solar energetic particle (SEP) events, posing significant risks to space technology and astronauts. Concurrently, particles accelerated at these shocks may also propagate b
Externí odkaz:
http://arxiv.org/abs/2409.18020
We give a gentle introduction to solar imaging data, focusing on the challenges and opportunities of data-driven approaches for solar eruptions. The various solar phenomenon prediction problems that might benefit from statistical methods are presente
Externí odkaz:
http://arxiv.org/abs/2405.12331
Autor:
Huang, Zhenguang, Toth, Gabor, Huang, Jia, Sachdeva, Nishtha, van der Holst, Bart, Manchester, Ward B.
A potential field solution is widely used to extrapolate the coronal magnetic field above the Sun's surface to a certain height. This model applies the current-free approximation and assumes that the magnetic field is entirely radial beyond the sourc
Externí odkaz:
http://arxiv.org/abs/2403.01712
The physics of solar flares occurring on the Sun is highly complex and far from fully understood. However, observations show that solar eruptions are associated with the intense kilogauss fields of active regions, where free energies are stored with
Externí odkaz:
http://arxiv.org/abs/2401.14345
Autor:
Zhao, Lulu, Sokolov, Igor, Gombosi, Tamas, Lario, David, Whitman, Kathryn, Huang, Zhenguang, Toth, Gabor, Manchester, Ward, van der Holst, Bart, Sachdeva, Nishtha
In this paper, we demonstrate the applicability of the data-driven and self-consistent solar energetic particle model, Solar-wind with FIeld-lines and Energetic-particles (SOFIE), to simulate acceleration and transport processes of solar energetic pa
Externí odkaz:
http://arxiv.org/abs/2309.16903
Multi-channel imaging data is a prevalent data format in scientific fields such as astronomy and biology. The structured information and the high dimensionality of these 3-D tensor data makes the analysis an intriguing but challenging topic for stati
Externí odkaz:
http://arxiv.org/abs/2301.11203
Autor:
Sachdeva, Nishtha, Manchester, Ward B, Sokolov, Igor, Huang, Zhenguang, Pevtsov, Alexander, Bertello, Luca, Pevtsov, Alexei A., Toth, Gabor, van der Holst, Bart
We explore model performance for the Alfven Wave Solar atmosphere Model (AWSoM) with near-real-time (NRT) synoptic maps of the photospheric vector magnetic field. These maps, produced by assimilating data from the Helioseismic Magnetic Imager (HMI) o
Externí odkaz:
http://arxiv.org/abs/2212.05138
Autor:
Aktukmak, Mehmet, Sun, Zeyu, Bobra, Monica, Gombosi, Tamas, Manchester, Ward B., Chen, Yang, Hero, Alfred
In this paper, we consider incorporating data associated with the sun's north and south polar field strengths to improve solar flare prediction performance using machine learning models. When used to supplement local data from active regions on the p
Externí odkaz:
http://arxiv.org/abs/2212.01730
Autor:
Huang, Zhenguang, Toth, Gabor, Sachdeva, Nishtha, Zhao, Lulu, van der Holst, Bartholomeus, Sokolov, Igor, Manchester, Ward, Gombosi, Tamas
We describe our first attempt to systematically simulate the solar wind during different phases of the last solar cycle with the Alfv\'en Wave Solar atmosphere Model (AWSoM) developed at the University of Michigan. Key to this study is the determinat
Externí odkaz:
http://arxiv.org/abs/2210.02501
Autor:
Hazra, Gopal, Vidotto, Aline A., Carolan, Stephen, D'Angelo, Carolina Villarreal, Manchester, Ward
High-energy stellar irradiation can photoevaporate planetary atmospheres, which can be observed in spectroscopic transits of hydrogen lines. For the exoplanet HD189733b, multiple observations in the Ly-$\alpha$ line have shown that atmospheric evapor
Externí odkaz:
http://arxiv.org/abs/2111.04531