Prospects for precision cosmology with the 21 cm signal from the dark ages

R Mondal, R Barkana - Nature Astronomy, 2023 - nature.com
The 21 cm signal from the dark ages provides a potential new probe of fundamental
cosmology. While exotic physics could be discovered, here we quantify the expected …

First results from hera phase i: Upper limits on the epoch of reionization 21 cm power spectrum

Z Abdurashidova, JE Aguirre, P Alexander… - The Astrophysical …, 2022 - iopscience.iop.org
We report upper limits on the Epoch of Reionization 21 cm power spectrum at redshifts 7.9
and 10.4 with 18 nights of data (∼ 36 hr of integration) from Phase I of the Hydrogen Epoch …

Improved constraints on the 21 cm EoR power spectrum and the X-ray heating of the IGM with HERA phase I observations

T Adams, JE Aguirre, P Alexander, ZS Ali… - The Astrophysical …, 2023 - iopscience.iop.org
We report the most sensitive upper limits to date on the 21 cm epoch of reionization power
spectrum using 94 nights of observing with Phase I of the Hydrogen Epoch of Reionization …

The impact of the first galaxies on cosmic dawn and reionization

JB Munoz, Y Qin, A Mesinger, SG Murray… - Monthly Notices of …, 2022 - academic.oup.com
The formation of the first galaxies during cosmic dawn and reionization (at redshifts z= 5–
30), triggered the last major phase transition of our universe, as hydrogen evolved from cold …

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 …

Cosmic mysteries and the hydrogen 21-cm line: bridging the gap with lunar observations

A Fialkov, T Gessey-Jones… - … Transactions of the …, 2024 - royalsocietypublishing.org
The hydrogen 21-cm signal is predicted to be the richest probe of the young Universe,
including those eras known as the cosmic Dark Ages, the Cosmic Dawn (when the first star …

[HTML][HTML] The search for radio emission from the exoplanetary systems 55 Cancri, υ Andromedae, and τ Boötis using LOFAR beam-formed observations

JD Turner, P Zarka, JM Grießmeier, J Lazio… - Astronomy & …, 2021 - aanda.org
Context. The detection of radio emissions from exoplanets will open up a vibrant new
research field. Observing planetary auroral radio emission is the most promising method to …

Astraeus I: the interplay between galaxy formation and reionization

A Hutter, P Dayal, G Yepes, S Gottlöber… - Monthly Notices of …, 2021 - academic.oup.com
We introduce a new self-consistent model of galaxy evolution and reionization, astraeus
(seminumerical r A diative tran S fer coupling of galaxy forma T ion and R eionization in N …

Constraining the intergalactic medium at z ≈ 9.1 using LOFAR Epoch of Reionization observations

R Ghara, SK Giri, G Mellema, B Ciardi… - Monthly Notices of …, 2020 - academic.oup.com
We derive constraints on the thermal and ionization states of the intergalactic medium (IGM)
at redshift≈ 9.1 using new upper limits on the 21-cm power spectrum measured by the …

An intensity mapping detection of aggregate CO line emission at 3 mm

GK Keating, DP Marrone, GC Bower… - The Astrophysical …, 2020 - iopscience.iop.org
We present a detection of molecular gas emission at z∼ 1–5 using the technique of line
intensity mapping. We make use of a pair of 3 mm interferometric data sets, the first from the …