activity
20162026
most citedSun-like stars produce superflares roughly once per century

34 citations · 115 across the 14 of their papers we have counts for

collaborators

14 papers

astro-ph.IM2026

White paper on the relevance of the European Solar Telescope (EST) for the French heliophysics

E. Pariat, Q. Noraz, B. Perri +61

The project of the European Solar Telescope aims to provide a state-of-the art infrastructure to study the Sun and its interactions with Earth and the heliosphere. This 4.2m apertu…

astro-ph.SR2026

Sungrazer comets as analogs of star-planet magnetic interactions

L-S. Guité, A. Strugarek, A. J. Finley +5

Star-planet magnetic interactions (SPMIs) can transfer energy from an exoplanet to its host star via Alfvén waves when the planet orbits within a sub-Alfvénic stellar wind. Similar…

astro-ph.SR2026

Chromospheric turbulence as a regulator of stellar wind mass flux

Munehito Shoda, Tom Van Doorsselaere, Allan Sacha Brun

The mass flux of solar and stellar winds is a key quantity for stellar evolution and space weather, yet its physical regulation mechanism remains an unsolved problem. In particular…

astro-ph.SR2026

POP-CORN: Validation of a new coronal hole detection tool based on neural networks

K. H. P. Henadhira Arachchige, B. Perri, A. S. Brun

The properties and spatial distribution of large-scale structures of the solar corona determine the observed solar wind structure at 1 au. Coronal holes are a major source of fast…

astro-ph.SR2026★ 1 cited

Formation and rising phase of a flux rope through data-constrained simulations

M. V. Sieyra, A. Strugarek, A. Prasad +8

Context. Data-constrained models incorporate observed photospheric magnetic fields. However, due to the lack of magnetic field information in the rest of the solar atmosphere, mode…

astro-ph.SR2026

Energetics and Emission in a Simulated Solar Flare Initialised by a Non-Force Free Magnetic Field

W. Bate, M. Gordovskyy, A. Prasad +7

Solar flare simulations are commonly initialised using non-linear force free field (NLFF) extrapolations derived from photospheric vector magnetograms. However, the force free assu…

astro-ph.SR2025★ 6 cited

Forecasting the solar cycle using variational data assimilation: validation on cycles 22 to 25

L. Jouve, C. P. Hung, A. S. Brun +5

Forecasting future solar activity has become crucial in our modern world, where intense eruptive phenomena mostly occurring during solar maximum are likely to be strongly damaging…

astro-ph.EP2024★ 4 cited

Ohmic heating in the upper atmosphere of hot exoplanets The influence of a time-varying magnetic field

A. Strugarek, A. García Muñoz, A. S. Brun +1

Exoplanets on close-in orbit are subject to intense X-ray and ultraviolet (XUV) irradiation from their star. Their atmosphere therefore heats up, sometimes to the point where it th…

astro-ph.SR2024★ 34 cited

Sun-like stars produce superflares roughly once per century

Valeriy Vasilyev, Timo Reinhold, Alexander I. Shapiro +7

Stellar superflares are energetic outbursts of electromagnetic radiation, similar to solar flares but releasing more energy, up to erg on main sequence stars. It is unkno…

astro-ph.SR2024

Impact of far-side structures observed by Solar Orbiter on coronal and heliospheric wind simulations

Barbara Perri, Adam Finley, Victor Réville +4

Solar Orbiter provides unique capabilities to understand the heliosphere. In particular, it has made observations of the far-side of the Sun and provides unique information to impr…

astro-ph.SR2024

How well does surface magnetism represent deep Sun-like star dynamo action?

Adam J. Finley, Sacha A. Brun, Antoine Strugarek +1

For Sun-like stars, the generation of toroidal magnetic field from poloidal magnetic field is an essential piece of the dynamo mechanism powering their magnetism. Previous authors…

astro-ph.EP2023★ 13 cited

On Earth's habitability over the Sun's main-sequence history: joint influence of space weather and Earth's magnetic field evolution

J. Varela, A. S. Brun, A. Strugarek +3

The aim of this study is to analyze the Earth habitability with respect to the direct exposition of the Earth atmosphere to the solar wind along the Suns evolution on the main sequ…

astro-ph.SR2022★ 29 cited

Stirring the Base of the Solar Wind: On Heat Transfer and Vortex Formation

Adam J. Finley, Sacha A. Brun, Mats Carlsson +3

Current models of the solar wind must approximate (or ignore) the small-scale dynamics within the solar atmosphere, however these are likely important in shaping the emerging wave-…

astro-ph.SR2016★ 28 cited

Characterizing the feedback of magnetic field on the differential rotation of solar-like stars

J. Varela, A. Strugarek, A. S. Brun

The aim of this article is to study how the differential rotation of solar-like stars is influenced by rotation rate and mass in presence of magnetic fields generated by a convecti…