Zobrazeno 1 - 10
of 150
pro vyhledávání: '"George H. Fisher"'
Autor:
George H. Fisher, M. D. Kazachenko, Daniel Price, Brian T. Welsch, J. Pomoell, Erkka Lumme, Emilia Kilpua
Context. Data-driven, time-dependent magnetofrictional modeling has proved to be an efficient tool for studying the pre-eruptive build-up of energy for solar eruptions, and sometimes even the ejection of coronal flux ropes during eruptions. However,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4bb95f7d4ca7c9c17136f7cd4e63620
http://hdl.handle.net/10138/344330
http://hdl.handle.net/10138/344330
Knowledge of electric fields in the photosphere is required to calculate the electromagnetic energy flux through the photosphere and set up boundary conditions for data-driven magnetohydrodynamic (MHD) simulations of solar eruptions. Recently, the PD
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9fad970c1c26fb74afbbf22dd133e11
http://arxiv.org/abs/2106.10579
http://arxiv.org/abs/2106.10579
Publikováno v:
The Astrophysical Journal Supplement Series. 254:1
Recent efforts coupling our Sun-to-Earth magnetohydrodynamics (MHD) model and lower-corona magnetofrictional (MF) model are described. Our Global Heliospheric MHD (GHM) model uses time-dependent three-component magnetic field data from the lower-coro
Autor:
Erkka Lumme, Brian T. Welsch, Maria D. Kazachenko, Emilia Kilpua, George H. Fisher, Jens Pomoell
Publikováno v:
Solar Physics
We study how the input-data cadence affects the photospheric energy and helicity injection estimates in eruptive NOAA Active Region 11158. We sample the novel 2.25-minute vector magnetogram and Dopplergram data from the Helioseismic and Magnetic Imag
Autor:
Maria D. Kazachenko, Mark C. M. Cheung, Marc L. DeRosa, Xudong Sun, Brian T. Welsch, George H. Fisher, Erkka Lumme, David J. Bercik
We describe the PDFI_SS software library, which is designed to find the electric field at the Sun's photosphere from a sequence of vector magnetogram and Doppler velocity measurements, and estimates of horizontal velocities obtained from local correl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e1c6dd684f93a108d8735b76c131370
Autor:
Erkka Lumme, Maria D. Kazachenko, Marc L. DeRosa, Keiji Hayashi, Brian T. Welsch, Mark C. M. Cheung, J. Todd Hoeksema, David J. Bercik, B. J. Lynch, Yang Liu, William P. Abbett, George H. Fisher, Xudong Sun
Publikováno v:
The Astrophysical Journal Supplement Series. 250:28
The Coronal Global Evolutionary Model (CGEM) provides data-driven simulations of the magnetic field in the solar corona to better understand the build-up of magnetic energy that leads to eruptive events. The CGEM project has developed six capabilitie
Autor:
Livio Luongo, Biagio D'Aniello, Antimo D'Aniello, Anna Scandurra, Serena Boccella, Carmela Belardo, Rosaria Romano, Monica Iannotta, Laura Magliozzi, Francesca Guida, Vito de Novellis, Ida Marabese, Claudio Arra, Antonio Barbieri, George H. Fisher, Sabatino Maione
Depressive symptoms and other neuropsychiatric dysfunctions are common in neurodegenerative disorders, including chronic pain and dementia. A correlation between the β-amyloid protein accumulation and the development of depression has been suggested
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03dc804846631ccc4de4a6e4fa19664d
http://hdl.handle.net/11588/682643
http://hdl.handle.net/11588/682643
Autor:
S. Masson, Yan Li, George H. Fisher, Spiro K. Antiochos, C. R. DeVore, Janet G. Luhmann, Benjamin J. Lynch
Publikováno v:
Journal of Geophysical Research Space Physics
Journal of Geophysical Research Space Physics, 2016, 121 (11), pp.10,677-10,697. ⟨10.1002/2016JA023432⟩
Journal of Geophysical Research Space Physics, American Geophysical Union/Wiley, 2016, 121 (11), pp.10,677-10,697. ⟨10.1002/2016JA023432⟩
Journal of Geophysical Research Space Physics, 2016, 121 (11), pp.10,677-10,697. ⟨10.1002/2016JA023432⟩
Journal of Geophysical Research Space Physics, American Geophysical Union/Wiley, 2016, 121 (11), pp.10,677-10,697. ⟨10.1002/2016JA023432⟩
Stealth coronal mass ejections (CMEs) are events in which there are almost no observable signatures of the CME eruption in the low corona but often a well-resolved slow flux rope CME observed in the coronagraph data. We present results from a three-d