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ABSTRACT Speckles dominate shot noise within the halo of adaptively corrected bright star images and, consequently, impose severe limits on ground‐based attempts to directly detect planets around… (More)
Abstract Hydrogen is a promising renewable fuel for transportation and domestic applications. Many systems have been investigated in order to improve the maximum hydrogen storage capacity… (More)
This research was designed to provide the HSE with a better understanding of the nature and dynamics of public perceptions of the risks associated with major hazard sites in the light of current… (More)
Preface 1. Astronomical sources 2. Observational limits 3. Telescopes 4. Seeing, speckles, and scintillation 5. Spectrographs 6. Dilute apertures 7. Single channelled detectors 8. Multi-channelled… (More)
The transmission modes of a fiber introduce an unstable intensity distribution in high-resolution spectra which cannot be eliminated by flat-fielding because the pattern is sensitive to any small… (More)
A program of precision radial velocity measurements using a RL1872 F/30 Reticon as detector and absorption lines of HF for reference (see Campbell and Walker 1979) is being pursued at both CFHT and… (More)