Lunch talk on Dec. 2, 2019
PARSEC: New evolutionary tracks/isochrones with alpha-enhancement and a new bolometric correction database
Speaker: Xiaoting Fu (PKU)
Venue: Room 2111, SWIFAR Building
Time: 12:30 PM, Monday, December 2, 2019
Precise studies on the Galactic bulge, thick disk, and multiple populations of globular cluster require stellar model with alpha enhancement and various helium contents. It is also important for extra- Galactic study to have alpha enhanced population synthesis. For this purpose we expand PARSEC model from solar-scaled composition to alpha enhanced mixtures. The new model closes the gap between the observation and model prediction on the RGB bump. Recently we also bring a homogeneousand stellar bolometric correction databse online, which provide a SED-based extinction and different atmosphere models.