This thesis describes the implementation and on-sky demonstration of high-resolution integral-field spectroscopy for extreme adaptive optics systems that are used to find and characterize... Show moreThis thesis describes the implementation and on-sky demonstration of high-resolution integral-field spectroscopy for extreme adaptive optics systems that are used to find and characterize exoplanets. For this work the Leiden EXoplanet Instrument (LEXI) was build, which is a visiting instrument for the William Herschel Telescope on La Palma. LEXI was used a pathfinder for testing new technology. The potential of these technqiues have been demonstrated with the observations of PDS 70 by the MUSE instruments, where we have characterized a proto-planet and found a second proto-planet in the same system. The proposed techniques in this thesis can be implemented on future instruments and telescopes for the characterization of exoplanets. Show less
Although the guitar has been part of the classical music tradition for centuries, writing for the guitar remains a formidable challenge for many composers. Where orchestral instruments have a long... Show moreAlthough the guitar has been part of the classical music tradition for centuries, writing for the guitar remains a formidable challenge for many composers. Where orchestral instruments have a long history of scoring guides that help composers develop their craft, the number of studies dedicated to guitar scoring remains scarce. This has led to a myriad of scoring problems in guitar works written by non-guitarist composers, often evidenced in unplayable passages and underdeveloped textures. The present study aims to fill this gap by establishing and developing guidelines for effective use of the classical guitar__s scoring potential. These guidelines are described through the sound-cell-texture chain, a model introduced in this study that identifies building blocks for guitar scoring that are believed to give the composer access to the scoring potential for the guitar. The second aim of this study is to use the findings of the research to compose a set of new guitar etudes. Show less
