Journal Club//2009 4th quarterJournal Club on 27/10/09Prescriptions for convection in 2D (axisymmetric) stellar models By Pierre Lesaffre (ENS) Room D18 (2nd floor) at ENS, 24 rue Lhomond, 13:00 to 13:45 Last update 10-21-2009 03:08 pm / Henrik LatterJournal Club on 17/11/09Modeling a high velocity LMC: The formation of the Magellanic Stream By Chiara Mastropietro (Observatoire de Paris) Room D18 (2nd floor) at ENS, 24 rue Lhomond, 13:00 to 13:45 I use high resolution N-body/SPH simulations to model the new proper motion of the Large Magellanic Cloud (LMC) within the Milky Way (MW) halo and investigate the effects of gravitational and hydrodynamical forces on the formation of the Magellanic Stream (MS). Both the LMC and the MW are fully self consistent galaxy models embedded in extended cuspy LCDM dark matter halos. I find that ram-pressure from a low density ionized halo is sufficient to remove a large amount of gas from the satellite's disk forming a trailing Stream that extends more than 120 degree from the Cloud. The morphology of the Stream is used to test different density profiles of the hot gaseous halo surrounding the MW. Tidal forces elongate the LMC's disk but do not affect its vertical structure. No stars become unbound showing that tidal stripping is almost effectiveless. Last update 11-10-2009 05:38 pm / Henrik LatterJournal Club on 14/12/09Simulations of fine-scale structure in Saturn's rings By Henrik Latter (LRA, ENS) Room D18 (2nd floor) at ENS, 24 rue Lhomond, 13:00 to 13:30
Last update 12-10-2009 11:02 am / Henrik LatterJournal Club archives
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