Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Rouillard, Alexis P."'
Autor:
Réville, Victor, Jasinski, Jamie M., Velli, Marco, Strugarek, Antoine, Brun, Allan Sacha, Murphy, Neil, Regoli, Leonardo H., Rouillard, Alexis, Varela, Jacobo
M-type stars are the most common stars in the universe. They are ideal hosts for the search of exoplanets in the habitable zone (HZ), as their small size and low temperature make the HZ much closer in than their solar twins. Harboring very deep conve
Externí odkaz:
http://arxiv.org/abs/2410.01621
Autor:
Jarry, Manon, Dresing, Nina, Rouillard, Alexis P., Plotnikov, Illya, Vainio, Rami, Palmroos, Christian, Kouloumvakos, Athanasios, Vuorinen, Laura
Shock waves driven by fast and wide coronal mass ejections (CMEs) are highly efficient particle accelerators involved in the production of solar energetic particle (SEP) events. The gradual SEP event measured by STEREO-A and B on October 11, 2013 had
Externí odkaz:
http://arxiv.org/abs/2406.07058
Autor:
Poirier, Nicolas, Réville, Victor, Rouillard, Alexis P., Kouloumvakos, Athanasios, Valette, Emeline
Publikováno v:
A&A 677, A108 (2023)
We analyse the signature and origin of transient structures embedded in the slow solar wind, and observed by the Wide-Field Imager for Parker Solar Probe (WISPR) during its first ten passages close to the Sun. WISPR provides a new in-depth vision on
Externí odkaz:
http://arxiv.org/abs/2307.05294
We investigate the origin of mesoscale structures in the solar wind called microstreams defined as enhancements in solar wind speed and temperature that last several hours. They were first clearly detected in Helios and Ulysses solar wind data and ar
Externí odkaz:
http://arxiv.org/abs/2307.02210
Autor:
Réville, Victor, Poirier, Nicolas, Kouloumvakos, Athanasios, Rouillard, Alexis P., Pinto, Rui F., Fargette, Naïs, Indurain, Mikel, Fournon, Raphaël, James, Théo, Pobeda, Raphaël, Scoul, Cyril
We present a new 3D MHD heliospheric model for space-weather forecasting driven by boundary conditions defined from white-light observations of the solar corona. The model is based on the MHD code PLUTO, constrained by an empirical derivation of the
Externí odkaz:
http://arxiv.org/abs/2303.14972
Autor:
Jarry, Manon, Rouillard, Alexis P., Plotnikov, Illya, Kouloumvakos, Athanasios, Warmuth, Alexander
Publikováno v:
A&A 672, A127 (2023)
Coronal and interplanetary shock waves produced by coronal mass ejections (CMEs) are major drivers of space-weather phenomena, inducing major changes in the heliospheric radiation environment and directly perturbing the near-Earth environment, includ
Externí odkaz:
http://arxiv.org/abs/2303.08663
The last 60 years of space exploration have shown that the interplanetary medium is continually perturbed by a myriad of different solar winds and storms that transport solar material across the whole heliosphere. If there is a consensus on the sourc
Externí odkaz:
http://arxiv.org/abs/2208.11637
The preferential orientation of magnetic switchbacks, implications for solar magnetic flux transport
Autor:
Fargette, Naïs, Lavraud, Benoit, Rouillard, Alexis P., Réville, Victor, Bale, Stuart D., Kasper, Justin
Publikováno v:
A&A 663, A109 (2022)
We investigate the orientation of the magnetic field deflections in switchbacks (SB) to determine if they are characterised by a possible preferential orientation. We compute the deflection angles of the magnetic field relative to the Parker spiral d
Externí odkaz:
http://arxiv.org/abs/2203.14591
Autor:
Badman, Samuel T., Brooks, David H., Poirier, Nicolas, Warren, Harry P., Petrie, Gordon, Rouillard, Alexis P., Arge, C. Nick, Bale, Stuart D., Aguero, Diego de Pablos, Harra, Louise, Jones, Shaela I., Kouloumvakos, Athanasios, Riley, Pete, Panasenco, Olga, Velli, Marco, Wallace, Samantha
Global coronal models seek to produce an accurate physical representation of the Sun's atmosphere which can be used, for example, to drive space weather models. Assessing their accuracy is a complex task and there are multiple observational pathways
Externí odkaz:
http://arxiv.org/abs/2201.11818
Autor:
Nitta, Nariaki V., Mulligan, Tamitha, Kilpua, Emilia K. J., Lynch, Benjamin J., Mierla, Marilena, O'Kane, Jennifer, Pagano, Paolo, Palmerio, Erika, Pomoell, Jens, Richardson, Ian G., Rodriguez, Luciano, Rouillard, Alexis P., Sinha, Suvadip, Srivastava, Nandita, Talpeanu, Dana-Camelia, Yardley, Stephanie L., Zhukov, Andrei N.
Publikováno v:
Space Sci Rev 217, 82 (2021)
Geomagnetic storms are an important aspect of space weather and can result in significant impacts on space- and ground-based assets. The majority of strong storms are associated with the passage of interplanetary coronal mass ejections (ICMEs) in the
Externí odkaz:
http://arxiv.org/abs/2110.08408