Speaker
Dr
Maosheng Xiang
(NAOC)
Description
The talk will introduce our efforts on studying the assemblage and evolution history of the Galactic disk with LAMOST. This includes a brief introduction to the LAMOST value-added catalogues, which contain robust estimates of stellar atmospheric parameters (Teff, logg, [Fe/H]), absolute magnitudes Mv, alpha-element to iron abundance ratio [a/Fe], carbon [C/H] and nitrogen abundance [N/H] yielded by LSP3, as well as interstellar extinction, distance, and kinematic parameters inferred based on the LSP3 parameters. I will then present robust stellar age estimates for millions of LAMOST stars. Finally, I will introduce scientific explorations on the stellar mass distribution, spatial structure and metallicity distribution of the Galactic disk using mono-age stellar populations from LAMOST.
Primary author
Dr
Maosheng Xiang
(NAOC)
