184 citations · 2.2k across the 65 of their papers we have counts for
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LIMFAST. V. Probing Reionization with the Synergy Between 21 cm and Photometric Galaxy Surveys
Guochao Sun, Adam Lidz, Tzu-Ching Chang +4
Cross-correlating the 21\,cm signal from intergalactic neutral hydrogen with the galaxy distribution is a powerful probe of the Epoch of Reionization and the physical mechanisms dr…
CIBER galaxy cross-correlations reveal a bright, low-redshift NIR background
Richard M. Feder, Grigory Heaton, James J. Bock +7
We perform the first tomographic analysis of near-IR extragalactic background light (EBL) anisotropies, cross-correlating CIBER 1.1 and 1.8 m imager data with photometric galaxy…
First Results from HERA Phase II
The HERA Collaboration, Zuhra Abdurashidova, Tyrone Adams +83
We report the first upper limits on the power spectrum of 21-cm fluctuations during the Epoch of Reionization and Cosmic Dawn from Phase II of the Hydrogen Epoch of Reionization Ar…
Sensitivity of the Global 21-cm Signal to Dark Matter-Baryon Scattering
Aryan Rahimieh, Priyank Parashari, Rui An +3
With current and upcoming experiments on the horizon, the global 21-cm signal can open up new avenues for probing dark matter (DM) physics at redshifts that are otherwise inaccessi…
CIBER 4th flight fluctuation analysis: Measurements of near-IR auto- and cross-power spectra on arcminute to sub-degree scales
Richard M. Feder, James J. Bock, Yun-Ting Cheng +10
We present new anisotropy measurements in the near-infrared (NIR) for angular multipoles using imaging data at 1.1 m and 1.8 m from the fourth flight of the C…
: 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…
LIMFAST. III. Timing Cosmic Reionization with the 21 cm and Near-Infrared Backgrounds
Guochao Sun, Adam Lidz, Tzu-Ching Chang +2
The timeline of cosmic reionization remains uncertain despite sustained efforts to study how the ionizing output of early galaxies shaped the intergalactic medium (IGM). Using the…
The relative constraining power of the high- 21-cm dipole and monopole signals
Jordan Mirocha, Chris Anderson, Tzu-Ching Chang +2
The 21-cm background is a promising probe of early star formation and black hole activity. While a slew of experiments on the ground seek to detect the 21-cm monopole and spatial f…
Reionization after JWST: a photon budget crisis?
Julian B. Muñoz, Jordan Mirocha, John Chisholm +2
New James Webb Space Telescope (JWST) observations are revealing the first galaxies to be prolific producers of ionizing photons, which we argue gives rise to a tension between dif…
Exploring the role of the halo mass function for inferring astrophysical parameters during reionisation
Bradley Greig, David Prelogović, Jordan Mirocha +3
The detection of the 21-cm signal at will reveal insights into the properties of the first galaxies responsible for driving reionisation. To extract this information, w…
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…
Machine-learning recovery of foreground wedge-removed 21-cm light cones for high- galaxy mapping
Jacob Kennedy, Jonathan Colaço Carr, Samuel Gagnon-Hartman +3
Upcoming experiments will map the spatial distribution of the 21-cm signal over three-dimensional volumes of space during the Epoch of Reionization (EoR). Several methods have been…
Breaking degeneracies in the first galaxies with clustering
Julian B. Muñoz, Jordan Mirocha, Steven Furlanetto +1
The high-redshift galaxy UV luminosity function (UVLF) has become essential for understanding the formation and evolution of the first galaxies. Yet, UVLFs only measure galaxy abun…
Improved Constraints on the 21 cm EoR Power Spectrum and the X-Ray Heating of the IGM with HERA Phase I Observations
The HERA Collaboration, Zara Abdurashidova, Tyrone Adams +92
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…
Structure Formation and the Global 21-cm Signal in the Presence of Coulomb-like Dark Matter-Baryon Interactions
Trey Driskell, Ethan O. Nadler, Jordan Mirocha +6
Many compelling dark matter (DM) scenarios feature Coulomb-like interactions between DM particles and baryons, in which the cross section for elastic scattering scales with relativ…
Seeking dark matter with -ray attenuation
José Luis Bernal, Andrea Caputo, Gabriela Sato-Polito +2
The flux of high-energy astrophysical rays is attenuated by the production of electron-positron pairs from scattering off of extragalactic background light (EBL). We use the mo…
Prospects for 21cm-Galaxy Cross-Correlations with HERA and the Roman High-Latitude Survey
Paul La Plante, Jordan Mirocha, Adélie Gorce +2
The cross-correlation between the 21 cm field and the galaxy distribution is a potential probe of the Epoch of Reionization (EoR). The 21 cm signal traces neutral gas in the interg…
A galaxy-free phenomenological model for the 21-cm power spectrum during reionization
Jordan Mirocha, Julian B. Muñoz, Steven R. Furlanetto +2
Upper limits from the current generation of interferometers targeting the 21-cm signal from high redshifts have recently begun to rule out physically realistic, though still extrem…
Constraining Warm Dark Matter and Pop III stars with the Global 21-cm Signal
Joshua J. Hibbard, Jordan Mirocha, David Rapetti +3
Upcoming ground and space-based experiments may have sufficient accuracy to place significant constraints upon high-redshift star formation, Reionization, and dark matter (DM) usin…
HERA Phase I Limits on the Cosmic 21-cm Signal: Constraints on Astrophysics and Cosmology During the Epoch of Reionization
The HERA Collaboration, Zara Abdurashidova, James E. Aguirre +81
Recently, the Hydrogen Epoch of Reionization Array (HERA) collaboration has produced the experiment's first upper limits on the power spectrum of 21-cm fluctuations at z~8 and 10.…
Global 21cm Absorption Signal from Superconducting Cosmic Strings
Roxane Thériault, Jordan T. Mirocha, Robert Brandenberger
Superconducting cosmic strings emit electromagnetic waves between the times of recombination and reionization. Hence, they have an effect on the global 21cm signal. We compute the…
Global 21-cm Cosmology from the Farside of the Moon
Jack Burns, Stuart Bale, Richard Bradley +12
One of the last unexplored windows to the cosmos, the Dark Ages and Cosmic Dawn, can be opened using a simple low frequency radio telescope from the stable, quiet lunar farside to…
The importance of galaxy formation histories in models of reionization
Jordan Mirocha, Paul La Plante, Adrian Liu
Upcoming galaxy surveys and 21-cm experiments targeting high redshifts are highly complementary probes of galaxy formation and reionization. However, in order to exped…
Systematic uncertainties in models of the cosmic dawn
Jordan Mirocha, Henri Lamarre, Adrian Liu
Models of the reionization and reheating of the intergalactic medium (IGM) at redshifts continue to grow more sophisticated in anticipation of near-future 21-cm, cosm…