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20042026
most citedImproved constraints on dark energy from Chandra X-ray observations of the largest relaxed galaxy clusters

634 citations · 6.2k across the 103 of their papers we have counts for

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Showing astro-ph.COShow all

57 papers · 1 filter

astro-ph.CO2025

Emulating Global 21 cm Cosmology Observations from the Lunar Far Side to Achieve Quick and Reliable Physical Constraints

J. Dorigo Jones, J. O. Burns, D. Rapetti +3

Efforts are underway to measure the global 21 cm signal from neutral hydrogen, which is a powerful probe of the early universe, using NASA radio telescopes on the far side of the M…

astro-ph.CO2025

The Wrath of KAN: Enabling Fast, Accurate, and Transparent Emulation of the Global 21 cm Cosmology Signal

J. Dorigo Jones, B. Reyes, D. Rapetti +3

Based on the Kolmogorov-Arnold Network (KAN), we present a novel emulator of the global 21 cm cosmology signal, , that provides extremely fast training speed whil…

astro-ph.CO2024

: A Fast Memory-based Emulator of the Global 21 cm Signal with Unprecedented Accuracy

J. Dorigo Jones, S. M. Bahauddin, D. Rapetti +2

Neural network (NN) emulators of the global 21 cm signal need emulation error much less than the observational noise in order to be used to perform unbiased Bayesian parameter infe…

astro-ph.CO2023

Validating posteriors obtained by an emulator when jointly-fitting mock data of the global 21-cm signal and high-z galaxy UV luminosity function

J. Dorigo Jones, D. Rapetti, J. Mirocha +3

Although neural-network-based emulators enable efficient parameter estimation in 21-cm cosmology, the accuracy of such constraints is poorly understood. We employ nested sampling t…

astro-ph.CO2023★ 1 cited

Fitting and Comparing Galactic Foreground Models for Unbiased 21-cm Cosmology

Joshua J. Hibbard, David Rapetti, Jack O. Burns +2

Accurate detection of the cosmological 21-cm global signal requires galactic foreground models which can remove power over ~. Although foreground and global signal models una…

astro-ph.CO2022★ 14 cited

X-ray morphology of cluster-mass haloes in self-interacting dark matter

Xuejian Shen, Thejs Brinckmann, David Rapetti +4

We perform cosmological zoom-in simulations of relaxed cluster-mass haloes with the inclusion of adiabatic gas in the cold dark matter (CDM) and self-interacting dark matter (…