Modeling a high velocity LMC. The formation of the Magellanic Stream
| Autor: | C. Mastropietro, Victor P. Debattista, C. C. Popescu |
|---|---|
| Přispěvatelé: | Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
Physics
Proper motion Milky Way Dark matter Astrophysics (astro-ph) Astronomy FOS: Physical sciences Astronomy and Astrophysics Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Galaxy Galactic halo Space and Planetary Science Magellanic Stream Tidal force Astrophysics::Solar and Stellar Astrophysics Halo Astrophysics::Earth and Planetary Astrophysics Large Magellanic Cloud [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Astrophysics::Galaxy Astrophysics |
| Zdroj: | IAU Symposium The Magellanic System: Stars, Gas, and Galaxies, IAU Symposium 256 The Magellanic System: Stars, Gas, and Galaxies, IAU Symposium 256, Jul 2008, Keele, United Kingdom, United Kingdom. pp.117-121, ⟨10.1017/S1743921308028330⟩ |
| DOI: | 10.1017/S1743921308028330⟩ |
| Popis: | 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 LMC's disk forming a trailing Stream that extends more than 120 degrees from the Cloud. Tidal forces elongate the satellite's disk but do not affect its vertical structure. No stars become unbound showing that tidal stripping is almost effectiveless. 6 pages, 3 figures. To be published in proceedings of IAU Symposium No. 256: The Magellanic System: Stars, Gas, and Galaxies, Jacco Th. van Loon & Joana M. Oliveira, eds. 2009 (Cambridge: Cambridge University Press) |
| Databáze: | OpenAIRE |
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