Sökning: "planet-planet scattering"

Hittade 4 uppsatser innehållade orden planet-planet scattering.

  1. 1. Effects of planetary radius contraction on scattering

    Kandidat-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

    Författare :Viktor Hrannar Jónsson; [2020]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : The observed high orbital eccentricities of many giant exoplanets is thought to be the result of gravitational scattering between planets. Outcomes of planet-planet scattering can result in some planets being lost by ejections into interstellar space, or collisions between planets or with the star. LÄS MER

  3. 2. Stars Eating Planets

    Master-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

    Författare :John Wimarsson; [2020]
    Nyckelord :Earth and planetary astrophysics; planetary dynamics; planet-planet scattering; planet consumption; Physics and Astronomy;

    Sammanfattning : In a phase of instability during the dynamical evolution of some multiple exoplanetary systems, exchange of angular momentum and/or energy through gravitational interactions between planets will lead to alterations of their orbital properties. In some cases, planetary orbits end up crossing, which leads to close encounters between two planets. LÄS MER

  4. 3. Mean Motion Resonances and Planetary Scattering

    Master-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Författare :Erik Dahlöf; [2018]
    Nyckelord :mean motion resonance; orbit resonance; planetary dynamics; planet-planet scattering; planetary scattering; eccentricity; inclination; planet systems; disturbing force; orbit dynamics; orbital elements; planets; exoplanets; scattering phase; relaxation; dynamical instabilities; N-body; protoplanetary disk; planet migration; eccentricity damping; inclination damping; planet-disk interactions; Physics and Astronomy;

    Sammanfattning : The observed distribution of giant exoplanet eccentricities and inclinations are significantly larger than what is measured for their Solar system analogues, Jupiter and Saturn. Since the first observations of exoplanets, planet-planet scattering has been proposed as a possible mechanism for exciting the eccentricities and inclinations of giant exoplanets. LÄS MER

  5. 4. The Stability of Observed Multiple-Planet Systems

    Master-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Författare :Karl Wahlberg Jansson; [2012]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : Solen är inte den enda stjärnan med planeter i universum. Sedan 1995, då den första extra-solära planeten upptäcktes, har 770 exoplaneter observerats och fler upptäcks hela tiden. Enligt teorier om hur planeter formas föds gasjättar med cirkulära, vida banor långt från sin stjärna precis som planeterna i solsystemet. LÄS MER