Centrum Astronomii
Wydział Fizyki, Astronomii i Informatyki Stosowanej, Uniwersytet Mikołaja Kopernika

Post-AGB Evolution Much Faster Than Previously Phought

Gęsicki K., Zijlstra A. A., Miller Bertolami M. M.
2017

For 32 central stars of PNe we present their parameters interpolated among new evolutionary sequences. The derived stellar final masses are confined between 0.53 and 0.58 M⊙ in good agreement with the peak in the white dwarf mass distribution. Consequently, the inferred star formation history of the Galactic bulge is well restricted between 3 and 11 Gyr and is compatible with other published studies. The new evolutionary tracks proved very good as a tool for analysis of late stages of stars life. The results provide a compelling confirmation of the accelerated post-AGB evolution.