Search for dissertations about: "Giant planets"
Showing result 1 - 5 of 17 swedish dissertations containing the words Giant planets.
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1. The Formation of Giant Planets
Abstract : 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. READ MORE
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2. Cooling the Envelopes of Gas Giants : Accretion, structure formation and observability
Abstract : We know now that discs of gas and dust, so-called protoplanetary discs, form planets as side-products of the naturally occurring star formation process throughout the Milky Way. Young, growing planets in such discs are commonly referred to as protoplanets. READ MORE
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3. 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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4. High-contrast imaging of low-mass companions and debris disks
Abstract : The search for exoplanets, i.e., planets orbiting other stars than the Sun, is a relatively new research field, but has already established itself as one of the most prolific and intriguing areas of astronomy. READ MORE
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5. Disentangling the Early History of the Solar System
Abstract : Giant planets form out of a disc of gas and dust – called protoplanetary disc -- that surrounded the protosun at the time of its formation. While the cores of giant planets were growing via planetesimal and pebble accretion, they started to interact with the gas in the protoplanetary disc. READ MORE