3 papers
astro-ph.IM2026
On the performance of pre-trained vision transformers for supernova spectral classification using different spectral representations
J. Serrano Bell, P. Gálvez Molina, V. Contreras Rojas +4
The spectroscopic classification of supernovae is a key component of time-domain astronomy and plays an important role in the identification of Type Ia events. The increasing volum…
astro-ph.SR2026
A search for new symbiotic stars in the Milky Way: Using machine learning techniques applied to photometric databases
V. Contreras Rojas, M. Jaque Arancibia, C. E. Ferreira Lopes +8
Symbiotic stars (SySts) are interacting binaries composed of a red giant transferring material to a hot compact star, typically a white dwarf. Although only about 300 systems are c…
astro-ph.GA2025
The role of bars in triggering active galactic nuclei galaxies
V. Marels, V. Mesa, M. Jaque Arancibia +4
Bars are considered an efficient mechanism for transporting gas toward the central regions of galaxies, potentially enhancing nuclear activity. However, the extent to which bars in…