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Did Leo I collide with the Magellanic Clouds?

Wempe, Ewoud (2018) Did Leo I collide with the Magellanic Clouds? Bachelor's Thesis, Astronomy.


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Because of its high velocity at its large distance, Leo I could be unbound. Although it is rare to have unbound satellites at Leo I’s distance, a possible explanation for this would be that it had an encounter with the Magellanic Clouds. In this thesis, this possibility is explored. For a combination of possible Galactic potentials and Magellanic Clouds profiles, the probability that the Magellanic Clouds had an encounter with Leo I was evalu- ated. Few such orbits were found: in the model where an encounter was most likely (this model combines heavy Magellanic Clouds with a light Milky Way), only 4.36% of the realizations satisfied the strong encounter criterion. When only considering realizations where the LMC and Leo I are not currently at their minimum distance, the probability becomes 9.98%.

Item Type: Thesis (Bachelor's Thesis)
Supervisor name: Helmi, A.
Degree programme: Astronomy
Thesis type: Bachelor's Thesis
Language: English
Date Deposited: 26 Aug 2018
Last Modified: 01 Oct 2018 09:57

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