2 papers
astro-ph.GA2026
EMU/GAMA: A statistical perspective on active galactic nuclei diagnostics
J. Prathap, A. M. Hopkins, R. Carvajal +19
While it is well known that galaxies are composites of many emission processes, quantifying the various contributions remains challenging. In this work, we use unsupervised machine…
astro-ph.GA2025
Identification of Anomalous E+A Galaxies in GAMA Using an Isolation Forest
Kieran Broadbelt, Kevin Pimbblet, Daniel J. Farrow
We implement an outlier detection model, an Isolation Foest (iForest), to uncover anomalous objects in the Galaxy and Mass Assembly Fourth Data Release (GAMA DR4). The iForest algo…