302 citations · 1.9k across the 49 of their papers we have counts for
51 papers
Galaxy-to-galaxy stochasticity has a limited impact on reionization and the 21-cm signal at fixed mean emissivity
Shihai Zhu, Yuxiang Qin
Galaxy-to-galaxy stochasticity may be less important for reionization, IGM heating, and the 21-cm signal than commonly assumed. We find that most of its apparent impact arises beca…
Robust Ly forest constraints on reionization from semi-analytic galaxy formation models
Yuxiang Qin, J. Stuart B. Wyithe
The high-redshift Ly forest provides one of the most sensitive probes of the final stages of reionization, but its interpretation can depend on how the ionizing sources are mode…
Square Kilometer Array Synergies for the Epoch of Reionization and Cosmic Dawn
Anirban Chakraborty, Tirthankar R. Choudhury, Kanan K. Datta +15
Synergies with other instruments will be essential in making, verifying, and interpreting a detection of the cosmic 21-cm signal from the Epoch of Reionization (EoR) and Cosmic Daw…
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…
Impacts and Statistical Mitigation of Missing Data on the 21cm Power Spectrum: A Case Study with the Hydrogen Epoch of Reionization Array
Kai-Feng Chen, Michael J. Wilensky, Adrian Liu +66
The precise characterization and mitigation of systematic effects is one of the biggest roadblocks impeding the detection of the fluctuations of cosmological 21cm signals. Missing…
Percent-level timing of reionization: self-consistent, implicit-likelihood inference from XQR-30+ Ly forest data
Yuxiang Qin, Andrei Mesinger, David Prelogović +13
The Lyman alpha (Lya) forest in the spectra of z>5 quasars provides a powerful probe of the late stages of the Epoch of Reionization (EoR). With the recent advent of exquisite data…
The EDGES measurement disfavors an excess radio background during the cosmic dawn
Junsong Cang, Andrei Mesinger, Steven G. Murray +3
In 2018 the EDGES experiment claimed the first detection of the global cosmic 21cm signal, which featured an absorption trough centered around with a depth of approxima…
Mapping reionization bubbles in the JWST era I: empirical edge detection with Lyman alpha emission from galaxies
Ting-Yi Lu, Charlotte A. Mason, Andrei Mesinger +7
Ionized bubble sizes during reionization trace physical properties of the first galaxies. JWST's ability to spectroscopically confirm and measure Lyman-alpha (Ly) emission in su…
Reionization morphology and intrinsic velocity offsets allow transmission of Lyman-α emission from JADES-GS-z13-1-LA
Yuxiang Qin, J. Stuart B. Wyithe
We investigate the detectability of Lyman- (Ly) emission from galaxies at the onset of cosmic reionization, aiming to understand the conditions necessary for detecting high-r…
Damping Wing-Like Features in the Stacked Ly Forest: Potential Neutral Hydrogen Islands at
Yongda Zhu, George D. Becker, Sarah E. I. Bosman +28
Recent quasar absorption line observations suggest that reionization may end as late as . As a means to search for large neutral hydrogen islands at , we revisi…
IGM damping wing constraints on the tail end of reionisation from the enlarged XQR-30 sample
Bradley Greig, Andrei Mesinger, Eduardo Bañados +16
The attenuation of Ly photons by neutral hydrogen in the intergalactic medium (IGM) at continues to be a powerful probe for studying the epoch of reionisation. Given…
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…
Inferring astrophysical parameters using the 2D cylindrical power spectrum from reionisation
Bradley Greig, David Prelogović, Yuxiang Qin +2
Enlightening our understanding of the first galaxies responsible for driving reionisation requires detecting the 21-cm signal from neutral hydrogen. Interpreting the wealth of info…
Semi-analytic modelling of Pop. III star formation and metallicity evolution -- I. Impact on the UV luminosity functions at z = 9-16
Emanuele M. Ventura, Yuxiang Qin, Sreedhar Balu +1
We implemented Population III (Pop. III) star formation in mini-halos within the MERAXES semi-analytic galaxy formation and reionisation model, run on top of a N-body simulation wi…
A demonstration of the effect of fringe-rate filtering in the Hydrogen Epoch of Reionization Array delay power spectrum pipeline
Hugh Garsden, Philip Bull, Mike Wilensky +94
Radio interferometers targeting the 21cm brightness temperature fluctuations at high redshift are subject to systematic effects that operate over a range of different timescales. T…
Hydrogen Epoch of Reionization Array (HERA) Phase II Deployment and Commissioning
Lindsay M. Berkhout, Daniel C. Jacobs, Zuhra Abdurashidova +93
This paper presents the design and deployment of the Hydrogen Epoch of Reionization Array (HERA) phase II system. HERA is designed as a staged experiment targeting 21 cm emission m…
Constraints on the Evolution of the Ionizing Background and Ionizing Photon Mean Free Path at the End of Reionization
Frederick B. Davies, Sarah E. I. Bosman, Prakash Gaikwad +16
The variations in Ly forest opacity observed at between lines of sight to different background quasars are too strong to be caused by fluctuations in the density field a…
matvis: A matrix-based visibility simulator for fast forward modelling of many-element 21 cm arrays
Piyanat Kittiwisit, Steven G. Murray, Hugh Garsden +95
Detection of the faint 21 cm line emission from the Cosmic Dawn and Epoch of Reionisation will require not only exquisite control over instrumental calibration and systematics to a…
21cmEMU: an emulator of 21cmFAST summary observables
Daniela Breitman, Andrei Mesinger, Steven Murray +3
Recent years have witnessed rapid progress in observations of the Epoch of Reionization (EoR). These have enabled high-dimensional inference of galaxy and intergalactic medium (IGM…
Accelerated Formation of Ultra-Massive Galaxies in the First Billion Years
Mengyuan Xiao, Pascal Oesch, David Elbaz +35
Recent JWST observations have revealed an unexpected abundance of massive galaxy candidates in the early Universe, extending further in redshift and to lower luminosity than what h…
Probing Ultra-late Reionization: Direct Measurements of the Mean Free Path over
Yongda Zhu, George D. Becker, Holly M. Christenson +22
The mean free path of ionizing photons, , is a critical parameter for modeling the intergalactic medium (IGM) both during and after reionization. We present direct mea…
21cm signal sensitivity to dark matter decay
Gaétan Facchinetti, Laura Lopez-Honorez, Yuxiang Qin +1
The redshifted 21cm signal from the Cosmic Dawn is expected to provide unprecedented insights into early Universe astrophysics and cosmology. Here we explore how dark matter can he…
Inferring reionization and galaxy properties from the patchy kinetic Sunyaev-Zel'dovich signal
Ivan Nikolić, Andrei Mesinger, Yuxiang Qin +1
The patchy kinetic Sunyaev-Zel'dovich (kSZ) signal is an integral probe of the timing and morphology of the epoch of reionization (EoR). Recent observations have claimed a low sign…
Implications of JWST galaxies for galaxy formation at high redshift
Yuxiang Qin, Sreedhar Balu, J. Stuart B. Wyithe
Using a semi-analytic galaxy-formation model, we study analogues of 8 recently discovered JWST galaxies at . We select analogues from a cosmological simulation with a $…