Search for dissertations about: "telescopes"
Showing result 1 - 5 of 73 swedish dissertations containing the word telescopes.
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1. Supernovae seen through gravitational telescopes
Abstract : Galaxies, and clusters of galaxies, can act as gravitational lenses and magnify the light of objects behind them. The effect enables observations of very distant supernovae, that otherwise would be too faint to be detected by existing telescopes, and allows studies of the frequency and properties of these rare phenomena when the universe was young. READ MORE
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2. Probing the early Universe with B-mode polarization : The Spider instrument, optical modelling and non-Gaussianity
Abstract : One of the main goals of modern observational cosmology is to constrain or detect a stochastic background of primordial gravitational waves. The existence of such a background is a generic prediction of the inflationary paradigm: the leading explanation for the universe's initial perturbations. READ MORE
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3. Optics for Earth Observation Instruments
Abstract : The optical system is an essential part of every remote sensing instrument used for detecting electromagnetic waves. Careful design, fabrication and characterization is therefore crucial, especially for satellite-borne missions where the possibility of post-launch repairs is highly limited. READ MORE
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4. Extremely Large Telescopes Optical Design and Wavefront Correction
Abstract : An overview of the state of art within optical design of large astronomical telescopes is given. Recent advances within the field are presented. The importance of new computer-controlled mirror-polishing methods is emphasized. READ MORE
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5. Adaptive Optics in Integrated Modeling of Telescopes
Abstract : This thesis present the implementation of a modular adaptive optics (AO) model, as part of an integrated model of extremely large telescopes (ELTs). The purpose of the project has been to establish knowledge within integrated modeling, with emphasis on adaptive optics. READ MORE