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7 papers · 2 filters
Infrared Detection and Characterization of Debris Disks, Exozodiacal Dust, and Exoplanets: The FKSI Mission Concept
W. C. Danchi, R. K. Barry, B. Lopez +17
The Fourier-Kelvin Stellar Interferometer (FKSI) is a mission concept for a nulling interferometer for the near-to-mid-infrared spectral region. FKSI is conceived as a mid-sized st…
Nulling interferometry: impact of exozodiacal clouds on the performance of future life-finding space missions
D. Defrère, O. Absil, R. den Hartog +2
Earth-sized planets around nearby stars are being detected for the first time by ground-based radial velocity and space-based transit surveys. This milestone is opening the path to…
Spectroscopic determination of the fundamental parameters of 66 B-type stars in the field-of-view of the CoRoT satellite
K. Lefever, J. Puls, T. Morel +3
We aim to determine the fundamental parameters of a sample of B stars with apparent visual magnitudes below 8 in the field-of-view of the CoRoT space mission, from high-resolution…
Calibration of force actuators on an adaptive secondary prototype
Davide Ricci, Armando Riccardi, Daniela Zanotti
In the context of the Large Binocular Telescope project, we present the results of force actuator calibrations performed on an adaptive secondary prototype called P45, a thin defor…
Extreme coronagraphy with an adaptive hologram Simulations of exo-planet imaging
D. Ricci, H. Le Coroller, A. Labeyrie
Aims. We present a solution to improve the performance of coronagraphs for the detection of exo-planets. Methods. We simulate numerically several kinds of coronagraphic systems, wi…
On posterior probability and significance level: application to the power spectrum of HD49933 observed by CoRoT
T. Appourchaux, R. Samadi, M. -A. Dupret
We emphasize that the mention of the significance level when rejecting the null hypothesis (H0) which assumes that what is observed is pure noise) can mislead one to think that the…