From the 3 of 36 linked papers with an AI index.
1 citations · 1 across the 13 of their papers we have counts for
17 papers · 1 filter
PolySwyft: sequential simulation-based nested sampling
Kilian H. Scheutwinkel, Will Handley, Christoph Weniger +1
We present PolySwyft, a novel, non-amortised simulation-based inference framework that unites the strengths of nested sampling (NS) and neural ratio estimation (NRE) to tackle chal…
Narrowing the discovery space of the cosmological 21-cm signal using multi-wavelength constraints
Jiten Dhandha, Anastasia Fialkov, Thomas Gessey-Jones +6
The cosmic 21-cm signal is a promising probe of the early Universe, owing to its sensitivity to the thermal state of the neutral intergalactic medium (IGM) and properties of the fi…
Exploring One-point Statistics in HERA Phase I Data: Effects of Foregrounds and Systematics on Measuring One-Point Statistics
Honggeun Kim, Jacqueline N. Hewitt, Nicholas S. Kern +61
Measuring one-point statistics in redshifted 21 cm intensity maps offers an opportunity to explore non-Gaussian features of the early universe. We assess the impact of instrumental…
Capturing System Drift with Time Series Calibration for Global 21-cm Cosmology Experiments
Christian J. Kirkham, Dominic J. Anstey, Eloy de Lera Acedo
To achieve the sensitivity required to detect signals from neutral hydrogen from the Cosmic Dawn and Epoch of Reionisation it is critical to have a well-calibrated instrument which…
Bayesian Anomaly Detection for Ia Cosmology: Automating SALT3 Data Curation
S. A. K. Leeney, W. J. Handley, H. T. J. Bevins +1
Precision cosmology with Type Ia supernovae (SNe Ia) requires robust quality control of large, heterogeneous datasets. Current data processing often relies on manual, subjective re…
Quantifying the Impact of Lunar and Planetary Occultation on Experimental Global 21 cm Cosmology
Joe H. N. Pattison, Dominic J. Anstey, Eloy de Lera Acedo
The global 21 cm signal from the hyperfine transition of cosmic atomic hydrogen is theorised to track the state of the early Universe via the analysis of its absorption and emissio…