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