Sökning: "Exoplanets"
Visar resultat 1 - 5 av 16 avhandlingar innehållade ordet Exoplanets.
1. Atmospheric Species and Spectral Radiation in Terrestrial Exoplanets : Implications for Astrobiology
Sammanfattning : The physical properties of the planets and their parent stars are fundamental in the composition of atmospheres and radiative environments, which fundamentally determine their surface temperature and habitability. The atmospheric composition and radiation play a vital role in the emergence of life. LÄS MER
2. Debris disks from an astronomical and an astrobiological viewpoint
Sammanfattning : In this licentiate thesis, I consider debris disks from an observational, astronomical viewpoint, but also discuss a potential astrobiological application. Debris disks are essentially disks of dust and rocks around main-sequence stars, analogue to the Kuiper- or the asteroid belt in our solar system. LÄS MER
3. The Formation of Giant Planets
Sammanfattning : Giant planets form embedded in a protoplanetary disc around a young star. Close to the midplane a large fraction of the available mass in solids is found in particles of cm to dm in size, which drift towards the star due to friction with the surrounding gas. LÄS MER
4. High Resolution Transmission Spectroscopy of Exoplanets
Sammanfattning : 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. LÄS MER
5. Stellar surface structures and the astrometric search for exoplanets
Sammanfattning : Not available.... LÄS MER