HERA phase I limits on the cosmic 21 cm signal: constraints on astrophysics and cosmology during the epoch of reionization
Z Abdurashidova, JE Aguirre, P Alexander… - The Astrophysical …, 2022 - iopscience.iop.org
Abstract Recently, the Hydrogen Epoch of Reionization Array (HERA) has produced the
experiment's first upper limits on the power spectrum of 21 cm fluctuations at z∼ 8 and 10 …
experiment's first upper limits on the power spectrum of 21 cm fluctuations at z∼ 8 and 10 …
Studying cosmic dawn using redshifted HI 21-cm signal: A brief review
In this review article, we briefly outline our current understanding of the physics associated
with the HI 21-cm signal from cosmic dawn. We discuss different phases of cosmic dawn as …
with the HI 21-cm signal from cosmic dawn. We discuss different phases of cosmic dawn as …
Astrophysical constraints from the SARAS 3 non-detection of the cosmic dawn sky-averaged 21-cm signal
HTJ Bevins, A Fialkov, E de Lera Acedo… - Nature …, 2022 - nature.com
Observations of the redshifted 21-cm line of atomic hydrogen have provided several upper
limits on the 21-cm power spectrum and a tentative detection of the sky-averaged signal at …
limits on the 21-cm power spectrum and a tentative detection of the sky-averaged signal at …
Probing early Universe through redshifted 21-cm signal: Modeling and observational challenges
Cosmic dawn (CD) and the epoch of reionization (EoR) are the most important parts of
cosmic history during which the first luminous structures emerged. These first objects heated …
cosmic history during which the first luminous structures emerged. These first objects heated …
Constraining the X-ray heating and reionization using 21-cm power spectra with Marginal Neural Ratio Estimation
ABSTRACT Cosmic Dawn (CD) and Epoch of Reionization (EoR) are epochs of the
Universe which host invaluable information about the cosmology and astrophysics of X-ray …
Universe which host invaluable information about the cosmology and astrophysics of X-ray …
IGM damping wing constraints on the tail end of reionization from the enlarged XQR-30 sample
B Greig, A Mesinger, E Bañados… - Monthly Notices of …, 2024 - academic.oup.com
The attenuation of Lyα photons by neutral hydrogen in the intergalactic medium (IGM) at z≳
5 continues to be a powerful probe for studying the epoch of reionization. Given a framework …
5 continues to be a powerful probe for studying the epoch of reionization. Given a framework …
beorn: a fast and flexible framework to simulate the epoch of reionization and cosmic dawn
In this study, we introduce beorn (Bubbles during the Epoch of Reionization Numerical
Simulator), a publicly available python code that generates three-dimensional maps of the …
Simulator), a publicly available python code that generates three-dimensional maps of the …
Measuring the topology of reionization with Betti numbers
The distribution of ionized hydrogen during the epoch of reionization (EoR) has a complex
morphology. We propose to measure the 3D topology of ionized regions using the Betti …
morphology. We propose to measure the 3D topology of ionized regions using the Betti …
Cosmological forecast of the 21-cm power spectrum with the halo model of reionization
The 21-cm power spectrum of reionization is a promising probe for cosmology and
fundamental physics. Exploiting this new observable, however, requires fast predictors …
fundamental physics. Exploiting this new observable, however, requires fast predictors …
Marginal post-processing of Bayesian inference products with normalizing flows and kernel density estimators
Bayesian analysis has become an indispensable tool across many different cosmological
fields, including the study of gravitational waves, the cosmic microwave background, and the …
fields, including the study of gravitational waves, the cosmic microwave background, and the …