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- Centre National de la Recherche ScientifiqueFR493 papers
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158 papers · 1 filter
Black hole lightning due to particle acceleration at subhorizon scales
MAGIC Collaboration, J. Aleksić, S. Ansoldi +151
Supermassive black holes with masses of millions to billions of solar masses are commonly found in the centers of galaxies. Astronomers seek to image jet formation using radio inte…
Non-Markovianity hinders Quantum Darwinism
F. Galve, R. Zambrini, S. Maniscalco
In this Letter we investigate Quantum Darwinism and the emergence of a classical world from the quantum one in connection with the spectral properties of the environment. We use a…
Doppler images and the underlying dynamo. The case of AF Leporis
S. P. Järvinen, R. Arlt, T. Hackman +6
The (Zeeman-)Doppler imaging studies of solar-type stars very often reveal large high-latitude spots. This also includes F stars that possess relatively shallow convection zones, i…
INTEGRAL 11-year hard X-ray survey above 100 keV
Roman A. Krivonos, Sergey S. Tsygankov, Alexander A. Lutovinov +3
We present results of all sky survey, performed with data acquired by the IBIS telescope onboard the INTEGRAL observatory over eleven years of operation, at energies above 100 keV.…
Spectroscopic study of solar twins and analogues
Juliet Datson, Chris Flynn, Laura Portinari
Context. Many large stellar surveys have been and are still being carried out, providing huge amounts of data, for which stellar physical parameters will be derived. Solar twins an…
Some properties of a class of elliptic partial differential operators
Shaolin Chen, Matti Vuorinen
We prove Schwarz-Pick type estimates and coefficient estimates for a class of elliptic partial differential operators introduced by Olofsson. Then we apply these results to obtain…