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Efficient simulation of discrete galaxy populations and associated radiation fields over the first billion years  featured image

Efficient simulation of discrete galaxy populations and associated radiation fields over the first billion years

A new physical model within the popular 21cmFAST simulation code that allows for the efficient generation of discrete galaxy populations and their associated radiation fields, over …

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Steven G. Murray
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The EDGES measurement disfavors an excess radio background during the cosmic dawn featured image

The EDGES measurement disfavors an excess radio background during the cosmic dawn

We re-analyze the same EDGES data that sparked a rush of interest in exotic dark matter models and excess radio backgrounds, finding that accounting for both the possibility of …

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Steven G. Murray
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matvis: a matrix-based visibility simulator for fast forward modelling of many-element 21 cm arrays featured image

matvis: a matrix-based visibility simulator for fast forward modelling of many-element 21 cm arrays

We introduce matvis, a GPU-accelerated matrix-based visibility simulator for many-element 21 cm arrays that allows simulation of mock observations on unprecedented scales.

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Steven G. Murray
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21cmSense v2: A modular open-source 21 cm sensitivity calculator featured image

21cmSense v2: A modular open-source 21 cm sensitivity calculator

A new method for computing the power of 21cm experiments to detect the cosmological 21cm signal.

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Steven G. Murray
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21cmEMU: an emulator of 21cmFAST summary observables featured image

21cmEMU: an emulator of 21cmFAST summary observables

We present 21cmEMU, a machine learning-based emulator of the popular 21cmFAST simulation code. 21cmEMU can rapidly generate predictions for summary observables like the global 21 …

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Steven G. Murray
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A Bayesian Calibration Framework for EDGES featured image

A Bayesian Calibration Framework for EDGES

How do uncertainties on the instrumental calibration affect the ability of EDGES to infer the cosmic 21cm signal?

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Steven G. Murray
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