Sökning: "extinction ratio"
Visar resultat 1 - 5 av 32 avhandlingar innehållade orden extinction ratio.
1. Extinction in Molecular Clouds : Case of Barnard 335
Sammanfattning : The Bok globule B335 is a small molecular cloud in the solar neighbourhood near the galactic plane. The aim for this three-paper-study is to construct and analyze the extinction for this globule. The method we apply is to use the light from field stars behind the cloud in broadband filters ranging from UV to the mid-infrared. LÄS MER
2. Plasmonic Properties of Pt and Pd Nanodisks
Sammanfattning : .... LÄS MER
3. Genomic analysis of the process leading up to the extinction of the woolly mammoth
Sammanfattning : Species worldwide are subject to contractions in both abundance and geographical range, and their persistence in a changing environment may thus depend on the ability to survive in small and fragmented populations. Despite the urgent need to understand how extinction works, our knowledge of pre-extinction genetic processes is limited because techniques allowing population and conservation genomics to be studied in wild threatened populations have become available only recently. LÄS MER
4. Extragalactic extinction and spectral properties of Type Ia supernovae
Sammanfattning : The use of Type Ia supernovae as standardisable candles for probing cosmological parameters with high precision requires good knowledge about how the supernova light is affected along the line of sight and how the intrinsic brightness varies between objects. The work in this thesis addresses these topics. LÄS MER
5. Signal restoration with the nonlinear optical loop mirror
Sammanfattning : .... LÄS MER