Data and supporting software for A Catalog of Double-peaked Narrow Emission-line Galaxies in DESI DR1

This repository accompanies the manuscript “A Catalog of Double-peaked Narrow Emission-line Galaxies in DESI DR1”(AAS81778) and provides the Python code used to train the two-stage CNN–BiLSTM classification models, together with the associated labeled data sets and final candidate catalog. The file stage1_peak_nopeak_13436.csv contains the 13,436 labeled spectra used for the first-stage peak/no-peak classification task, stage2_single_double_9255.csv contains the 9,255 labeled spectra used for the second-stage single-/double-peaked classification task, and double_peak_emissionline_candidate.csv contains the final catalog of 26,582 spatially unique narrow-line kinematic candidates obtained after applying the full selection pipeline described in the manuscript. The paper is currently under submission, and the manuscript information will be updated once it becomes available.