Limb-darkening measurements for a cool red giant in microlensing event OGLE 2004-BLG-482

Abstrakt

A detailed analysis of OGLE 2004-BLG-482, a relatively high-magnification single-lens microlensing event that exhibits clear extended-source effects, is presented. These events are relatively rare, but they potentially contain unique information on the stellar atmosphere properties of their source star, as shown in this study.

Klíčová slova

• Limb-darkening measurements
• cool red giant
• gravitational microlensing
• OGLE 2004-BLG-482