HI intensity mapping with MeerKAT: A measurement of the 21-cm auto-spectrum on cosmological scales

arXiv:2610.12158 · astro-ph.CO · Submitted 2026-10-08 · Read on arXiv

astro-ph.CO

Submitted: 2026-10-08

Updated: 2026-10-08

Terminology

• Clustering — 32× in this paper · explained in 2 episodes
• Consistency — 20× in this paper · explained in 3 episodes
• Calibration — 17× in this paper · explained in 7 episodes
• Abundance — 12× in this paper · explained in 1 episode
• Robustness — 8× in this paper · explained in 5 episodes
• Matter Power Spectrum — 6× in this paper · explained in 2 episodes
• 21-cm signal — 3× in this paper · explained in 1 episode
• Accuracy — 3× in this paper · explained in 1 episode
• Benchmark — 3× in this paper · explained in 2 episodes
• Velocity Dispersion — 3× in this paper · explained in 2 episodes
• Bayesian Inference — 2× in this paper · explained in 5 episodes
• Degeneracy — 2× in this paper · explained in 3 episodes
• Frequency Dependence — 2× in this paper · explained in 2 episodes
• Principal Component Analysis — 2× in this paper
• Systematic Bias — 2× in this paper · explained in 3 episodes
• Trace — 2× in this paper · explained in 2 episodes
• Alignment — 1× in this paper · explained in 1 episode
• Anti-correlation — 1× in this paper · explained in 3 episodes
• Aperture — 1× in this paper · explained in 1 episode
• Bayesian Framework — 1× in this paper · explained in 3 episodes
• Computational Biology — 1× in this paper · explained in 2 episodes
• Cooperation — 1× in this paper · explained in 2 episodes
• Core — 1× in this paper · explained in 2 episodes
• Galaxy and Mass Assembly — 1× in this paper
• Signal-to-noise ratio (SNR) — 1× in this paper · explained in 2 episodes

Sources

• Revealing cosmological fluctuations in 21cm intensity maps with MeerKLASS: from maps to power spectra
• The Super-Sample Covariance of Line-Intensity Mapping Power Spectrum
• A Measurement of CO(3-2) Line Emission from eBOSS Galaxies at $z\sim 0.5$ using Planck Data
• MeerKLASS: MeerKAT Large Area Synoptic Survey
• Semi-empirical constraints on the HI mass function of star-forming galaxies and $\Omega_{\rm HI}$ at $z\sim 0.37$ from interferometric surveys

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