Detection, instance segmentation, and classification for astronomical surveys with deep learning (deepdisc): detectron2 implementation and demonstration with …

G Merz, Y Liu, CJ Burke, PD Aleo, X Liu… - Monthly Notices of …, 2023 - academic.oup.com
The next generation of wide-field deep astronomical surveys will deliver unprecedented
amounts of images through the 2020s and beyond. As both the sensitivity and depth of …

Denoising diffusion probabilistic models to predict the density of molecular clouds

D Xu, JC Tan, CJ Hsu, Y Zhu - The Astrophysical Journal, 2023 - iopscience.iop.org
We introduce the state-of-the-art deep-learning denoising diffusion probabilistic model as a
method to infer the volume or number density of giant molecular clouds (GMCs) from …

Detection of stellar wakes in the Milky Way: A deep learning approach

S Põder, J Pata, M Benito, IA Asensio… - Astronomy & …, 2025 - aanda.org
Context. Due to poor observational constraints on the low-mass end of the subhalo mass
function, the detection of dark matter (DM) subhalos on sub-galactic scales would provide …

Accurately Estimating Redshifts from CSST Slitless Spectroscopic Survey Using Deep Learning

X Zhou, Y Gong, X Zhang, N Li, XM Meng… - The Astrophysical …, 2024 - iopscience.iop.org
Abstract Chinese Space Station Telescope (CSST) has the capability to conduct a slitless
spectroscopic survey simultaneously with a photometric survey. The spectroscopic survey …

Reconstructing Galaxy Cluster Mass Maps using Score-based Generative Modeling

A Hsu, M Ho, J Lin, C Markey, M Ntampaka… - arXiv preprint arXiv …, 2024 - arxiv.org
We present a novel approach to reconstruct gas and dark matter projected density maps of
galaxy clusters using score-based generative modeling. Our diffusion model takes in mock …

A Machine-learning Approach to Assessing the Presence of Substructure in Quasar-host Galaxies Using the Hyper Suprime-cam Subaru Strategic Program

C Nagele, JD Silverman, T Hartwig, J Li… - The Astrophysical …, 2023 - iopscience.iop.org
The conditions under which galactic nuclear regions become active are largely unknown,
although it has been hypothesized that secular processes related to galaxy morphology …

Score-matching neural networks for improved multi-band source separation

ML Sampson, P Melchior, C Ward… - arXiv preprint arXiv …, 2024 - arxiv.org
We present the implementation of a score-matching neural network that represents a data-
driven prior for non-parametric galaxy morphologies. The gradients of this prior can be …

Denoising Diffusion Probabilistic Models to Predict the Number Density of Molecular Clouds in Astronomy

D Xu, J Tan, CJ Hsu, Y Zhu - ICLR 2023 Workshop on Physics for Machine … - openreview.net
Denoising Diffusion Probabilistic Models (DDPMs) have become the mainstream generative
approach in the Machine Learning and Computer Vision area, achieving state-of-the-art …