MAPPING THE GALACTIC BULGE Manuela Zoccali
MAPPING THE GALACTIC BULGE Manuela Zoccali
MAPPING THE GALACTIC BULGE Manuela Zoccali
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The bulge metallicity distributionb=–4°<strong>Zoccali</strong>+ (2008)► broad metallicity distribution► radial gradient along the minor axisin the OUTER bulgeb=–6°<strong>Zoccali</strong>+ (2008)b=–8°Johnson+ (2011)b=–12°<strong>Zoccali</strong>+ (2008)[Fe/H]► Bekki & Tsujimoto (2011)Bekki & Tsujimoto (2011) proposes a2-disk model for the bulge, to explain bothvertical gradients and cylindrical rotation