Generalised Visibility ILC: a new foreground mitigation strategy for interferometric HI intensity mapping in the low-redshift Universe

arXiv:2609.19276 · astro-ph.CO · Submitted 2026-09-16 · Read on arXiv

astro-ph.CO

Submitted: 2026-09-16

Updated: 2026-09-16

Comments: 25 pages, 23 figures, submitted to MNRAS

Code: https://github.com/abonaldi/TRECS

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

Clustering — 12× in this paper · explained in 2 episodes
Mean Squared Error — 5× in this paper
Generalised Visibility Internal Linear Combination — 3× in this paper
Hybrid Approach — 3× in this paper · explained in 4 episodes
Principal Component Analysis — 3× in this paper
Akaike Information Criterion — 2× in this paper
Aperture — 2× in this paper · explained in 1 episode
Consistency — 2× in this paper · explained in 3 episodes
Frequency Dependence — 2× in this paper · explained in 2 episodes
Marchenko-Pastur Criterion — 2× in this paper
Principal Component Analysis (PCA) — 2× in this paper · explained in 4 episodes
AGN — 1× in this paper · explained in 1 episode
Cosmic Microwave Background — 1× in this paper
Epoch of Reionisation — 1× in this paper
Fast Fourier Transform — 1× in this paper
Higher-order statistics — 1× in this paper · explained in 2 episodes
Reconstruction Error — 1× in this paper · explained in 2 episodes
Sparsity — 1× in this paper · explained in 4 episodes
Square Kilometre Array Observatory — 1× in this paper
Star Formation Rate (SFR) — 1× in this paper · explained in 5 episodes
Weak Lensing — 1× in this paper · explained in 2 episodes

Sources

Related papers