Stéphane Courteau
Stéphane Courteau
Stéphane Courteau
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Evidence for Sub-Maximal Disks<br />
• Bottema (1997): stellar kinematics of galactic disks<br />
• Predicted by analytical models of galaxy formation<br />
(e.g. Mo, Mao, & White 1998). Assumes AC.<br />
• <strong>Courteau</strong> & Rix (1999), <strong>Courteau</strong> etal (2005): TF residuals<br />
Assumes AC.<br />
• Kregel et al. (2002): disk flattening of edge-on galaxies<br />
• Trott & Webster (2002): lensing + rotation curve<br />
constraints<br />
• Dutton et al. (2005): mass modeling with stellar population<br />
constraints, including barred galaxies. Assumes AC.<br />
V disk /V tot ≤ 0.6 M DM /M tot ≥ 0.7<br />
(on average at 2.2 disk scale lengths)
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