Search for dissertations about: "satellites"
Showing result 21 - 25 of 151 swedish dissertations containing the word satellites.
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21. Formation and Early Evolution of Planetary Systems
Abstract : Over the past 20 years we have discovered that exoplanets are common in the Galaxy, and are far more diverse than anyone expected. Half of all Sun-like stars are accompanied by at least one super-Earth (a planet with a size between Earth and Neptune), many planets have very high eccentricities indicative of a dynamical origin, and a small fraction of stars are accompanied by hot Jupiters, whose origin is poorly understood. READ MORE
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22. Turbulence-Assisted Planetary Growth : Hydrodynamical Simulations of Accretion Disks and Planet Formation
Abstract : The current paradigm in planet formation theory is developed around a hierarquical growth of solid bodies, from interstellar dust grains to rocky planetary cores. A particularly difficult phase in the process is the growth from meter-size boulders to planetary embryos of the size of our Moon or Mars. READ MORE
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23. Formation of Pebble-Pile Planetesimals and the Interior Structure of Comets
Abstract : Planets form in protoplanetary discs of gas, dust and ice around newborn stars. In the Solar System, not only planets are found as a result from the time of planet formation, but also remnant planetesimals in the form of asteroids, Kuiper belt objects and comets. Recent observations, e.g. READ MORE
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24. Optical remote sensing of the middle atmosphere from satellites - DOAS retrievals of O3 and NO2 from Odin/OSIRIS limb-scattering measurements
Abstract : .... READ MORE
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25. Metallicity determination of M dwarfs
Abstract : M dwarfs constitute around 70% of all stars in the local Galaxy. Their multitude together with their long main-sequence lifetimes make them important for studies of global properties of the Galaxy such as the initial mass function or the structure and kinematics of stellar populations. READ MORE