Search for dissertations about: "astronomy"
Showing result 1 - 5 of 536 swedish dissertations containing the word astronomy.
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1. High Resolution Transmission Spectroscopy of Exoplanets
Abstract : A large number of exoplanets has been observed in the last three decades, but still for most of them we know comparatively little about the atmospheres of these distant planets. This is of particular interest as there exist types of planets that don't have an analogy in our own solar system, like hot Jupiters or super Earths. READ MORE
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2. Taking possession of astronomy : Frontispieces and illustrated title pages in 17th-century books on astronomy
Abstract : The thesis is a survey of 291 frontispieces and illustrated title pages in European books on astronomy from the 17th century. It is a quantitative and qualitative survey of how motifs are related to consumption, identification and display. READ MORE
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3. Chemical Abundance Analysis of Population II Stars : The Summary Includes a Background in General Astronomy
Abstract : We are made of stardust in the sense that most atomic nuclei around us have been formed by stars. Stars synthesise new elements and expel them to the interstellar medium, from which later new generations of stars are born. We can map this chemical evolution by analysing the atmospheric contents of old Galactic halo stars. READ MORE
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4. Gas Production in Distant Comets
Abstract : Molecular spectroscopy at radio wavelengths is a tool well suited for studying the composition and outgassing kinematics of cometary comae. This is particularly true for distant comets, i.e. comets at heliocentric distances greater than a few AU, where the excitation of molecules is inefficient other than for rotational energy levels. READ MORE
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5. Methods of Multi-Conjugate Adaptive Optics for Astronomy
Abstract : This work analyses several aspects of multi-conjugate adaptive optics (MCAO) for astronomy. The research ranges from fundamental and technical studies for present-day MCAO projects, to feasibility studies of high-order MCAO instruments for the extremely large telescopes (ELTs) of the future. READ MORE