Zobrazeno 1 - 10
of 1 609
pro vyhledávání: '"Stéphan, G."'
Publikováno v:
Sol Phys 299, 161 (2024)
Maps of the magnetic field at the Sun's surface are commonly used as boundary conditions in space-weather modeling. However, continuous observations are only available from the Sun's Earth-facing side. One commonly used approach to mitigate the lack
Externí odkaz:
http://arxiv.org/abs/2411.18701
Autor:
Heinemann, Stephan G., Owens, Mathew J., Temmer, Manuela, Turtle, James A., Arge, Charles N., Henney, Carl J., Pomoell, Jens, Asvestari, Eleanna, Linker, Jon A., Downs, Cooper, Caplan, Ronald M., Hofmeister, Stefan J., Scolini, Camilla, Pinto, Rui F., Madjarska, Maria S.
Coronal holes are recognized as the primary sources of heliospheric open magnetic flux (OMF). However, a noticeable gap exists between in-situ measured OMF and that derived from remote sensing observations of the Sun. In this study, we investigate th
Externí odkaz:
http://arxiv.org/abs/2402.12805
High-speed solar wind streams (HSSs) interact with the preceding ambient solar wind to form Stream Interaction Regions (SIRs), which are a primary source of recurrent geomagnetic storms. However, HSSs may also encounter and subsequently interact with
Externí odkaz:
http://arxiv.org/abs/2402.08065
Autor:
Asvestari, Eleanna, Temmer, Manuela, Caplan, Ronald M., Linker, Jon A., Heinemann, Stephan G., Pinto, Rui F., Henney, Carl J., Arge, Charles N., Owens, Mathew J., Madjarska, Maria S., Pomoell, Jens, Hofmeister, Stefan J., Scolini, Camilla, Samara, Evangelia
A plethora of coronal models, from empirical to more complex magnetohydrodynamic (MHD) ones, are being used for reconstructing the coronal magnetic field topology and estimating the open magnetic flux. However, no individual solution fully agrees wit
Externí odkaz:
http://arxiv.org/abs/2311.04024
Autor:
Heinemann, Stephan G., Hofmeister, Stefan J., Turtle, James A., Pomoell, Jens, Asvestari, Eleanna, Sterling, Alphonse C., Diercke, Andrea, Downs, Cooper
Publikováno v:
A&A 679, A100 (2023)
The understanding of the solar magnetic coronal structure is tightly linked to the shape of open field regions, specifically coronal holes. A dynamically evolving coronal hole coincides with the local restructuring of open to closed magnetic field, w
Externí odkaz:
http://arxiv.org/abs/2309.11100
Autor:
Undseth, Brennan, Pietx-Casas, Oriol, Raymenants, Eline, Mehmandoost, Mohammad, Mądzik, Mateusz T., Philips, Stephan G. J., de Snoo, Sander L., Michalak, David J., Amitonov, Sergey V., Tryputen, Larysa, Wuetz, Brian Paquelet, Fezzi, Viviana, Esposti, Davide Degli, Sammak, Amir, Scappucci, Giordano, Vandersypen, Lieven M. K.
Publikováno v:
Phys. Rev. X 13, 041015 (2023)
As spin-based quantum processors grow in size and complexity, maintaining high fidelities and minimizing crosstalk will be essential for the successful implementation of quantum algorithms and error-correction protocols. In particular, recent experim
Externí odkaz:
http://arxiv.org/abs/2304.12984
Semiconductor spin qubits demonstrated single-qubit gates with fidelities up to $99.9\%$ benchmarked in the single-qubit subspace. However, tomographic characterizations reveals non-negligible crosstalk errors in a larger space. Additionally, it was
Externí odkaz:
http://arxiv.org/abs/2211.16241
Autor:
Oranchuk, Dustin J. a, ⁎, Bodkin, Stephan G. a, b, Boncella, Katie L. a, Harris-Love, Michael O. a
Publikováno v:
In Journal of Sport and Health Science November 2024 13(6):820-840
Autor:
Samara, Evangelia, Magdalenic, Jasmina, Rodriguez, Luciano, Heinemann, Stephan G., Georgoulis, Manolis K., Hofmeister, Stefan J., Poedts, Stefaan
Publikováno v:
A&A 662, A68 (2022)
It has long been known that the high-speed stream (HSS) peak velocity at Earth directly depends on the area of the coronal hole (CH) on the Sun. Different degrees of association between the two parameters have been shown by many authors. In this stud
Externí odkaz:
http://arxiv.org/abs/2204.00368
Autor:
Hofmeister, Stefan Johann, Asvestari, Eleanna, Guo, Jingnan, Heidrich-Meisner, Verena, Heinemann, Stephan G., Magdalenic, Jasmina, Poedts, Stefaan, Samara, Evangelia, Temmer, Manuela, Vennerstrom, Susanne, Veronig, Astrid, Vršnak, Bojan, Wimmer-Schweingruber, Robert
Publikováno v:
A&A, 659, A190 (2022)
We derive a simple analytical model for the propagation of HSSs from the Sun to Earth and thereby show how the area of coronal holes and the size of their boundary regions affect the HSS velocity, temperature, and density near Earth. We presume that
Externí odkaz:
http://arxiv.org/abs/2203.15689