Sökning: "planet migration"

Visar resultat 6 - 10 av 18 uppsatser innehållade orden planet migration.

1. 6. How did Jupiter form?

   Kandidat-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

   Författare :Calle Ahlgren; [2019]
   Nyckelord :Planet formation; Planet migration; Physics and Astronomy;

   Sammanfattning : Two relatively new concepts in planetary science are planetary migration; wherein the planets migrate through the protoplanetary disk as they form, and pebble accretion; wherein the planetesimals which become terrestrial planets and giant planet cores grow through the accretion of small pebbles. Planetary migration has become a generally accepted concept but there is still much to be learned even about how it affected the formation of our own solar system. LÄS MER

3. 7. Linking Climate Change, Migration Patterns and Vulnerability: The case of Ndem, Senegal

   Master-uppsats, Lunds universitet/Avdelningen för Riskhantering och Samhällssäkerhet

   Författare :Giordano Margaglio; Anna Chesnier; [2019]
   Nyckelord :Climate Change; Internal Migration; Vulnerability; Sahel; Culture; Desertification; Drought; Ndem; West Africa; Earth and Environmental Sciences;

   Sammanfattning : Projections estimate that by 2050 hundreds of millions to a billion people will migrate elsewhere due to environmental reasons. The increasing frequency and intensity of natural hazards posed by climate change, as well as the slow-onset degradation of habitats all over the planet, will drive more and more species to migrate towards more habitable and safe environments. LÄS MER

4. 8. Influence of grain growth on the thermal structure of inner protoplanetary discs

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

   Författare :Sofia Savvidou; [2018]
   Nyckelord :protoplanetary disc; thermal structure; hydrodynamical simulations; grain size distribution; grain growth; opacity; iceline; Physics and Astronomy;

   Sammanfattning : Protoplanetary discs surround young stars for the first few million years after their formation and they are the birthplaces of planetary systems. The thermal structure of the discs is regulated by their dust content and the opacity that it provides. LÄS MER

5. 9. En varmare planet - ett kvinnoproblem: Kvinnors möjlighet att få skydd från klimatrelaterade katastrofer genom flyktingstatus alternativt den miljörättsliga principen om "Common But Differentiated Resposibilities"

   Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Juridiska institutionen; Lunds universitet/Juridiska fakulteten

   Författare :Josefine Andreasson; [2018]
   Nyckelord :folkrätt; klimatförändringar; migration; kvinnor; intersektionalitet; Law and Political Science;

   Sammanfattning : Migration is a considerable, as well as an inevitable, consequence of climate change. As the frequency and dimension of climate change events increase, climate induced migration will increase as well. Not all states have contributed equally to the anthropogenic climate change, nor do they face the same risks connected with it. LÄS MER

7. 10. 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