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11 papers · 1 filter
Current status of PAPYRUS : the pyramid based adaptive optics system at LAM/OHP
Muslimov E., Levraud N., Chambouleyron V. +23
The Provence Adaptive optics Pyramid Run System (PAPYRUS) is a pyramid-based Adaptive Optics (AO) system that will be installed at the Coude focus of the 1.52m telescope (T152) at…
Experimental validation of active control of low-order aberrations with a Zernike sensor through a Lyot coronagraph
Raphaël Pourcelot, Mamadou N'Diaye, Emiel H. Por +11
Future large segmented space telescopes and their coronagraphic instruments are expected to provide the resolution and sensitivity to observe Earth-like planets with a 10^10 contra…
Bogolyubov's averaging theorem applied to the Kramers-Henneberger Hamiltonian
Elena Floriani, Jonathan Dubois, Cristel Chandre
We apply Bogolyubov's averaging theorem to the motion of an electron of an atom driven by a linearly polarized laser field in the Kramers-Henneberger frame. We provide estimates of…
Evolution of the galaxy merger fraction in the CLAUDS+HSC-SSP deep fields
Nathalie Thibert, Marcin Sawicki, Andy Goulding +3
We estimate the evolution of the galaxy-galaxy merger fraction for galaxies over in the 18.6 deg deep CLAUDS+HSC-SSP surveys. We do…
Testing the predictions of axisymmetric distribution functions of galactic dark matter with hydrodynamical simulations
Mihael Petač, Julien Lavalle, Arturo Núñez-Castiñeyra +1
Signal predictions for galactic dark matter (DM) searches often rely on assumptions on the DM phase-space distribution function (DF) in halos. This applies to both particle (e.g. $…
The X-CLASS survey: A catalogue of 1646 X-ray-selected galaxy clusters up to z1.5
E. Koulouridis, N. Clerc, T. Sadibekova +25
Cosmological probes based on galaxy clusters rely on cluster number counts and large-scale structure information. X-ray cluster surveys are well suited for this purpose, since they…