Research

Galactic archaeology with survey data, dynamics, chemistry, and machine learning.

Research interests include stellar abundances, Galactic evolution, spectroscopic surveys, Gaia-based dynamics, and deep learning applications for large astronomical data sets.

Theme 01

Milky Way formation and ex-situ stellar components

This work develops deep-learning approaches to identify ex-situ stars using 6D kinematics and actions from Gaia DR3.

The analysis maps ex-situ star distributions in radial and vertical directions and estimates their proportions within the Galactic disk and halo.

Theme 02

Galactic bar dynamics and angular momentum transfer

This work studies a rotating stellar component in the bulge and halo through neural-network classification applied to Gaia DR3.

Test-particle simulations with an axisymmetric background potential and a decelerating central bar are used to interpret angular-momentum transfer mechanisms.

Theme 03

Stellar parameters and elemental abundances

Neural-network models are used to estimate stellar parameters and elemental abundances from low-resolution LAMOST DR8 spectra for 1.2 million giants.

The resulting value-added catalog supports investigations of the Milky Way's chemical evolution.

Theme 04

Machine learning and AI for astronomy

Neural networks and deep learning are core methods for classification and stellar-parameter inference from large astronomical surveys.

Additional professional activity includes participation in meetings or schools related to astrostatistics, machine learning, data visualization, and AI-driven discovery in physics and astrophysics.