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- Centre National de la Recherche ScientifiqueFR123 papers
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4 papers · 2 filters
The Equilibrium Structure of CDM Halos
Paul R. Shapiro, Ilian T. Iliev, Hugo Martel +2
Dark-matter halos are the scaffolding around which galaxies and clusters are built. They form when the gravitational instability of primordial density fluctuations causes regions w…
A Period and a Prediction for the Of?p Spectrum Alternator HD 191612
Nolan R. Walborn, Ian D. Howarth, Gregor Rauw +7
The observational picture of the enigmatic O-type spectrum variable HD191612 has been sharpened substantially. A symmetrical, low-amplitude light curve with a period near 540 d has…
Light Propagation in Inhomogeneous Universes. IV. Strong Lensing and Environmental Effects
Premana Premadi, Hugo Martel
We study the gravitational lensing of high-redshift sources in a LCDM universe. We have performed a series of ray-tracing experiments, and selected a subsample of cases of strong l…
Mechanical and Thermal Tests of the Containers of Liquid Mirrors
E. F. Borra, R. Content, G. Tremblay +2
We give a generic description of a liquid mirror system and summarize some practical information useful to making them. We compare laboratory measurements of deformations, due to t…