Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Pomoell, Jens"'
Autor:
Wagner, Andreas, Price, Daniel J., Bourgeois, Slava, Daei, Farhad, Pomoell, Jens, Poedts, Stefaan, Kumari, Anshu, Barata, Teresa, Erdélyi, Robertus, Kilpua, Emilia K. J.
We investigate the effect of data-driving on flux rope eruptivity in magnetic field simulations by analysing fully data-driven modelling results of active region (AR) 12473 and AR11176, as well as preforming relaxation runs for AR12473 (found to be e
Externí odkaz:
http://arxiv.org/abs/2410.18672
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
Alfv\'enic fluctuations, as modelled by the non-linear interactions of Alfv\'en waves of various scales, are seen to dominate solar wind turbulence. However, there is also a non-negligible component of non-Alfv\'enic fluctuations. The Els\"asser form
Externí odkaz:
http://arxiv.org/abs/2402.09250
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:
Sishtla, Chaitanya Prasad, Jebaraj, Immanuel Christopher, Pomoell, Jens, Magyar, Norbert, Pulupa, Marc, Kilpua, Emilia, Bale, Stuart D.
The nonlinear evolution of Alfv\'en waves in the solar corona leads to the generation of Alfv\'enic turbulence. This description of the Alfv\'en waves involves parametric instabilities where the parent wave decays into slow mode waves giving rise to
Externí odkaz:
http://arxiv.org/abs/2312.10398
Autor:
Wagner, Andreas, Bourgeois, Slava, Kilpua, Emilia K. J., Sarkar, Ranadeep, Price, Daniel J., Kumari, Anshu, Pomoell, Jens, Poedts, Stefaan, Barata, Teresa, Erdélyi, Robertus, Oliveira, Orlando, Gafeira, Ricardo
We present a magnetic flux rope (FR) extraction tool for solar coronal magnetic field modelling data, which builds upon the methodology from Wagner et al. (2023). We apply the scheme to magnetic field simulations of active regions AR12473 and AR11176
Externí odkaz:
http://arxiv.org/abs/2312.00673
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:
Palmerio, Erika, Maharana, Anwesha, Lynch, Benjamin J., Scolini, Camilla, Good, Simon W., Pomoell, Jens, Isavnin, Alexey, Kilpua, Emilia K. J.
We present observations and modeling results of the propagation and impact at Earth of a high-latitude, extended filament channel eruption that commenced on 2015 July 9. The coronal mass ejection (CME) that resulted from the filament eruption was ass
Externí odkaz:
http://arxiv.org/abs/2310.05846
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
Publikováno v:
A&A 679, A54 (2023)
Alfv\'enic fluctuations of various scales are ubiquitous in the corona; their non-linear interactions and eventual turbulent cascade result in an important heating mechanism that accelerates the solar wind. These fluctuations may be processed by larg
Externí odkaz:
http://arxiv.org/abs/2309.06266