2 papers
astro-ph.GA2025
Danger Zone: Establishing Buffers for Enhanced Classification in BPT Diagrams
Changhyun Cho, Ahmad Nemer, Ivan Yu. Katkov +1
This study utilizes unsupervised machine learning, specifically the uniform manifold approximation and projection (UMAP) algorithm, to classify optical spectra originating from sta…
astro-ph.GA2025
SDSS-V LVM: Resolving Physical Conditions in the Trifid Nebula
Natascha Sattler, J. Eduardo Méndez-Delgado, Kathryn Kreckel +18
The chemical abundance of the interstellar medium sets the initial conditions for star formation and provides a probe of chemical galaxy evolution models. However, unresolved inhom…