National Institute of Astrophysics, Optics and Electronics

Detection of HI Holes in NGC 6946 Using Artificial Intelligence: New Candidates from moment-0 Maps

The automated detection of HI holes in galaxy disks has been a long-standing challenge in extragalactic radio astronomy and has become increasingly urgent due to the large data volumes generated by current and forthcoming large-area HI surveys. Conventional approaches based on vi...

Characterization of Orbits in Bars in Disc Galaxies Using Fourier Frequencies

Abstract Bars are among the most prominent dynamical structures in disc galaxies, yet their long-term evolution and the orbital families that sustain them remain only partially understood. In this work, we introduce a new methodology based on frozen potentials combined with Fouri...