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- Centre National de la Recherche ScientifiqueFR955 papers
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11 papers · 2 filters
A BCool survey of stellar magnetic cycles
S. Bellotti, P. Petit, S. V. Jeffers +6
The magnetic cycle on the Sun consists of two consecutive 11-yr sunspot cycles and exhibits a polarity reversal around sunspot maximum. Although solar dynamo theories have progress…
Solar flares in the Solar Orbiter era: Short-exposure EUI/FSI observations of STIX flares
Hannah Collier, Laura A. Hayes, Stefan Purkhart +10
Aims: This paper aims to demonstrate the importance of short-exposure extreme ultraviolet (EUV) observations of solar flares in the study of particle acceleration, heating and ener…
Transient Upstream Mesoscale Structures: Drivers of Solar-Quiet Space Weather
Primož Kajdič, Xóchitl Blanco-Cano, Lucile Turc +12
In recent years, it has become increasingly clear that space weather disturbances can be triggered by transient upstream mesoscale structures (TUMS), independently of the occurrenc…
Euclid: High-precision imaging astrometry and photometry from Early Release Observations. I. Internal kinematics of NGC 6397 by combining Euclid and Gaia data
M. Libralato, L. R. Bedin, M. Griggio +175
The instruments at the focus of the Euclid space observatory offer superb, diffraction-limited imaging over an unprecedented (from space) wide field of view of 0.57 deg. This e…
Spatial distributions of EUV brightenings in the quiet-Sun
C. J. Nelson, L. A. Hayes, D. Müller +16
The identification of large numbers of localised transient EUV brightenings, with small spatial scales, in the quiet-Sun corona has been one of the key early results from Solar Orb…
A multi-instrument study of ultraviolet bursts and associated surges in AR 12957
C. J. Nelson, D. Calchetti, A. Gandorfer +6
The relationship between UV Bursts and solar surges is complex, with these events sometimes being observed together and sometimes being observed independently. Why this sporadic as…