the magellanic clouds and dsph satellites. vienna, april 10-12
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The Magellanic Clouds and dSph satellites.Vienna, April 10-12
Chiara Mastropietro LMU Munich
A. Burkert (LMU) & B.Moore (UniZH)
Ram pressure induced star formation
LMC Parkes HI survey (Stavely-Smith et al. 2003)
HI TIDAL FEATURES ??
Smooth old stars distribution (near IR) out to 9 kpcNo signs of spiral arms (van der Marel 2001)
20 kpc
20 kpc
Age < 0.5 Gyr Age < 1 Gyr
Cioni et al. 2000 (DENIS survey)
Age < 25 Myr
X-ray emission (ROSAT)
De Boer et al. 1997 Bow shock induced star formation
Blondiau et al. 1997
NGC 5746 Chandra X-ray detection T~0.4 keV(Pedersen et al. 2006)
OVI absorption lines
through the Galactic halo
(Sembach et al. 2002)
Mastropietro et al. 2004
Putman et al. 2002
Mastropietro et al. 2004
c = 9.5 v200 = 40 km/s = 0.074 Mdisk/Mdark = 0.1 Mgas = 0.5 Mdisk RHI = 8 Rd Q = 3 Npart = 750000
Mastropietro, Burkert & Moore in prep.
Nhot =2e6
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