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

Abstract

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.

Keywords

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