Zobrazeno 1 - 10
of 6 408
pro vyhledávání: '"Demoulin A"'
Autor:
Berriot, Etienne, Démoulin, Pascal, Alexandrova, Olga, Zaslavsky, Arnaud, Maksimovic, Milan, Nicolaou, Georgios
This study focuses on a radial alignment between Parker Solar Probe (PSP) and Solar Orbiter (SolO) on the 29$^{\text{th}}$ of April 2021 (during a solar minimum), when the two spacecraft were respectively located at $\sim 0.075$ and $\sim 0.9$~au fro
Externí odkaz:
http://arxiv.org/abs/2412.09395
Autor:
Dakeyo, J-B., Rouillard, A. P., Réville, V., Démoulin, P., Maksimovic, M., Chapiron, A., Pinto, R. F., Louarn, P.
Publikováno v:
A&A 691, A77 (2024)
The properties of the solar wind measured in-situ in the heliosphere are largely controlled by energy deposition in the solar. Previous studies have shown that long duration and large scale magnetic structures show an inverse relation between the sol
Externí odkaz:
http://arxiv.org/abs/2408.06155
Publikováno v:
A&A 690, A242 (2024)
The present study provides statistical information on the coronal magnetic field and intensity properties of small-scale bright and faint loops in the quiet Sun. We aim to quantitatively investigate the morphological and topological properties of the
Externí odkaz:
http://arxiv.org/abs/2407.09769
This work introduces the Supervised Expectation-Maximization Framework (SEMF), a versatile and model-agnostic approach for generating prediction intervals in datasets with complete or missing data. SEMF extends the Expectation-Maximization algorithm,
Externí odkaz:
http://arxiv.org/abs/2405.18176
Multi spacecraft study with the Icarus model: Modelling the propagation of CMEs to Mercury and Earth
Autor:
Baratashvili, Tinatin, Grison, Benjamin, Schmieder, Brigitte, Demoulin, Pascal, Poedts, Stefaan
Publikováno v:
A&A 689, A98 (2024)
Coronal Mass Ejections (CMEs) are the main drivers of the disturbances in interplanetary space. Understanding the CME interior magnetic structure is crucial for advancing space weather studies. Assessing the capabilities of a numerical heliospheric m
Externí odkaz:
http://arxiv.org/abs/2405.17988
Autor:
Poisson, Mariano, Fuentes, Marcelo López, Mandrini, Cristina H., Démoulin, Pascal, Grings, Francisco
Active regions (ARs) appear in the solar atmosphere as a consequence of the emergence of magnetic flux-ropes (FR). In this study, we use Bayesian methods to analyze line-of-sight magnetograms of emerging ARs. We employ a FR model consisting of a half
Externí odkaz:
http://arxiv.org/abs/2405.12208
Causal asymmetry is based on the principle that an event is a cause only if its absence would not have been a cause. From there, uncovering causal effects becomes a matter of comparing a well-defined score in both directions. Motivated by studying ca
Externí odkaz:
http://arxiv.org/abs/2405.10371
Autor:
Baker, D., van Driel-Gesztelyi, L., James, A. W., Demoulin, P., To, A. S. H., Murabito, M., Long, D. M., Brooks, D. H., McKevitt, J., Laming, J. M., Green, L. M., Yardley, S. L., Valori, G., Mihailescu, T., Matthews, S. A., Kuniyoshi, H.
Within the coronae of stars, abundances of those elements with low first ionization potential (FIP) often differ from their photospheric values. The coronae of the Sun and solar-type stars mostly show enhancements of low-FIP elements (the FIP effect)
Externí odkaz:
http://arxiv.org/abs/2405.07755
In this work, we summarize the state-of-the-art methods in causal inference for extremes. In a non-exhaustive way, we start by describing an extremal approach to quantile treatment effect where the treatment has an impact on the tail of the outcome.
Externí odkaz:
http://arxiv.org/abs/2403.05331
Publikováno v:
A&A 686, A114 (2024)
Configurations where two spacecraft, such as Parker Solar Probe (PSP) and Solar Orbiter (SolO), are radially aligned provide opportunities to study the evolution of a single solar wind parcel during so called plasma line-ups. The most critical part o
Externí odkaz:
http://arxiv.org/abs/2402.12382