Motion of icy grains originating in Saturn’s D-ring
Saturn's rings have long been thought to provide the planetary atmosphere with infalling material, affecting both its chemical composition and physical properties (e.g. temperature). As in-situ measurements of this material have been realized during the Grand Finale orbits of the Cassini spacec...
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Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen
2023
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ftuppsalauniv:oai:DiVA.org:uu-515416 2023-12-24T10:24:55+01:00 Motion of icy grains originating in Saturn’s D-ring Kolokotronis, Apostolos 2023 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-515416 eng eng Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen Uppsala universitet, Institutionen för fysik och astronomi FYSAST FYSPROJ1326 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-515416 info:eu-repo/semantics/openAccess Fusion Plasma and Space Physics plasma och rymdfysik Student thesis info:eu-repo/semantics/bachelorThesis text 2023 ftuppsalauniv 2023-11-29T23:31:56Z Saturn's rings have long been thought to provide the planetary atmosphere with infalling material, affecting both its chemical composition and physical properties (e.g. temperature). As in-situ measurements of this material have been realized during the Grand Finale orbits of the Cassini spacecraft, icy grains falling from the innermost, D ring, towards the planet have been detected. In this work we are simulating the trajectories of these grains, starting from the D ring, moving under the influence of the planetary magnetic and gravitational fields. The atmospheric drag force that acts on them while traveling through the Saturn's atmosphere is also implemented and the grains apart from losing kinetic energy, are also getting sublimated. Our results suggest that in a constant electric potential of typical values for the ambient plasma around Saturn, the grains tend to move towards the southern hemisphere, with the negatively charged ones ending up in low to mid latitudes, whereas the positive ones follow a spiraling motion and fall close to the south pole. Bachelor Thesis South pole Uppsala University: Publications (DiVA) South Pole |
institution |
Open Polar |
collection |
Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
Fusion Plasma and Space Physics plasma och rymdfysik |
spellingShingle |
Fusion Plasma and Space Physics plasma och rymdfysik Kolokotronis, Apostolos Motion of icy grains originating in Saturn’s D-ring |
topic_facet |
Fusion Plasma and Space Physics plasma och rymdfysik |
description |
Saturn's rings have long been thought to provide the planetary atmosphere with infalling material, affecting both its chemical composition and physical properties (e.g. temperature). As in-situ measurements of this material have been realized during the Grand Finale orbits of the Cassini spacecraft, icy grains falling from the innermost, D ring, towards the planet have been detected. In this work we are simulating the trajectories of these grains, starting from the D ring, moving under the influence of the planetary magnetic and gravitational fields. The atmospheric drag force that acts on them while traveling through the Saturn's atmosphere is also implemented and the grains apart from losing kinetic energy, are also getting sublimated. Our results suggest that in a constant electric potential of typical values for the ambient plasma around Saturn, the grains tend to move towards the southern hemisphere, with the negatively charged ones ending up in low to mid latitudes, whereas the positive ones follow a spiraling motion and fall close to the south pole. |
format |
Bachelor Thesis |
author |
Kolokotronis, Apostolos |
author_facet |
Kolokotronis, Apostolos |
author_sort |
Kolokotronis, Apostolos |
title |
Motion of icy grains originating in Saturn’s D-ring |
title_short |
Motion of icy grains originating in Saturn’s D-ring |
title_full |
Motion of icy grains originating in Saturn’s D-ring |
title_fullStr |
Motion of icy grains originating in Saturn’s D-ring |
title_full_unstemmed |
Motion of icy grains originating in Saturn’s D-ring |
title_sort |
motion of icy grains originating in saturn’s d-ring |
publisher |
Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen |
publishDate |
2023 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-515416 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
FYSAST FYSPROJ1326 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-515416 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1786200168170782720 |