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- Centre National de la Recherche ScientifiqueFR299 papers
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91 papers · 1 filter
Subaru and Swift observations of V652 Herculis: resolving the photospheric pulsation
C. S. Jeffery, D. Kurtz, H. Shibahashi +4
High resolution spectroscopy with the Subaru High Dispersion Spectrograph, and Swift ultraviolet photometry are presented for the pulsating extreme helium star V652\,Her. Swift pro…
Thermal-history dependent magnetoelastic transition in (Mn,Fe)2(P,Si)
X. F. Miao, L. Caron, Z. Gercsi +4
The thermal-history dependence of the magnetoelastic transition in (Mn,Fe)2(P,Si) compounds has been investigated using high-resolution neutron diffraction. As-prepared samples dis…
Stable Umbral Chromospheric Structures
V. M. J. Henriques, E. Scullion, M. Mathioudakis +3
Aims. To understand the morphology of the chromosphere in sunspot umbra. We investigate if the horizontal structures observed in the spectral core of the Ca II H line are ephemeral…
Adaptive Mechanism for Distributed Opportunistic Scheduling
Andres Garcia-Saavedra, Albert Banchs, Pablo Serrano +1
Distributed Opportunistic Scheduling (DOS) techniques have been recently proposed to improve the throughput performance of wireless networks. With DOS, each station contends for th…
A global Nullstellensatz for ideals of Denjoy-Carleman functions
Francesca Acquistapace, Fabrizio Broglia, Andreea Nicoara
We prove a Nullstellensatz result for global ideals of Denjoy-Carleman functions in both finitely generated and infinitely generated cases.
The energetics of a global shock wave in the low solar corona
David M. Long, Deborah Baker, David R. Williams +3
As the most energetic eruptions in the solar system, coronal mass ejections (CMEs) can produce shock waves at both their front and flanks as they erupt from the Sun into the helios…