Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"Debris discs"”.
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Secular Dynamics of Self-gravitating Debris Discs
Debris discs are the leftovers from the epoch of planetary formation, akin to the Solar System's asteroid and Kuiper belts. They preserve a record of the physical processes at work throughout the system's age, not least planet--disc interactions. Deciphering this record has become a central focus …
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The influence of planetary and stellar companions on debris discs
… 20% of main-sequence stars are known to host debris discs composed of planetesimals and the dust produced in their collisions. The structures of these discs can be constrained through spectral energy distribution (SED) modelling or direct imaging of the dust. Gravitational perturbations in a …
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EXOCOMETS AT LARGE ORBITAL RADII AND THEIR INWARD TRANSPORT IN DEBRIS DISCS
… down solids producing dust and giving rise to debris discs. Primitive asteroids and comets likely played a major role in the emergence of life on Earth through their delivery of volatiles early in the lifetime of our planet. Cometary impacts, therefore, could be a necessary condition for the …
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Planetesimal Belts in Misaligned Wide Stellar Binaries
… the surface density evolution of three narrow debris discs, as well as one wide disc, with a stellar companion at acomp = 878 au and an inclination of 88◦. It found that the EKM imprinted a petal shaped structure on the narrow discs due to the disc particles librating between a fixed set of …
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High-resolution studies of exoplanetesimal belt formation and evolution
Stars are born with gas-rich protoplanetary discs that typically survive for a few Myr before dispersing, after which they are left with the planetary bodies that formed within the protoplanetary system: planets, and belts of planetesimals (km-sized rocky and icy bodies). Planetesimals within belts …