Publications (92)
Intensity Mapping with Carbon Monoxide Emission Lines and the Redshifted 21 cm Line
Adam Lidz, Steven R. Furlanetto, S. Peng Oh +4
We quantify the prospects for using emission lines from rotational transitions of the CO molecule to perform an `intensity mapping' observation at high redshift during the Epoch of…
Squared-field cross-correlation between kinetic Sunyaev-Zel'dovich effect and 21-cm intensity mapping
Zi-Yan Yuwen, Yu-Er Jiang, Yin-Zhe Ma +3
Neutral hydrogen (HI) 21-cm intensity mapping is an effective method to track the distribution of baryonic matter, and extract astrophysical and cosmological information. The 21-cm…
CMBPol Mission Concept Study: Reionization Science with the Cosmic Microwave Background
Matias Zaldarriaga, Loris Colombo, Eiichiro Komatsu +6
We summarize existing constraints on the epoch of reionization and discuss the observational probes that are sensitive to the process. We focus on the role large scale polarization…
Boosting Line Intensity Map Signal-to-Noise with the Ly- Forest Cross-Correlation
Mahdi Qezlou, Simeon Bird, Adam Lidz +6
We forecast the prospects for cross-correlating future line intensity mapping (LIM) surveys with the current and future Ly- forest data. We use large cosmological hydrodynamic…
Forecasting the cross correlation of Terahertz Intensity Mapper [CII] line intensity maps with Euclid galaxies
Justin S. Bracks, Ryan P. Keenan, Shubh Agrawal +24
We forecast that the Terahertz Intensity Mapper (TIM) cross-correlated with Euclid's Fornax deep field (EDF-F), TIMEDF-F, will detect the [CII]-galaxy cross-power spectrum…
The Two-Halo Term in Stacked Thermal Sunyaev-Zel'dovich Measurements: Implications for Self-Similarity
J. Colin Hill, Eric J. Baxter, Adam Lidz +2
The relation between the mass and integrated electron pressure of galaxy group and cluster halos can be probed by stacking maps of the thermal Sunyaev-Zel'dovich (tSZ) effect. Perh…
Astrophysics and Cosmology with Line-Intensity Mapping
Ely D. Kovetz, Patrick C. Breysse, Adam Lidz +9
Line-Intensity Mapping is an emerging technique which promises new insights into the evolution of the Universe, from star formation at low redshifts to the epoch of reionization an…
The Signatures of Large-scale Temperature and Intensity Fluctuations in the Lyman-alpha Forest
Matthew McQuinn, Lars Hernquist, Adam Lidz +1
It appears inevitable that reionization processes would have produced large-scale temperature fluctuations in the intergalactic medium. Using toy temperature models and detailed he…
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…
Line-Intensity Mapping: 2017 Status Report
Ely D. Kovetz, Marco P. Viero, Adam Lidz +45
Following the first two annual intensity mapping workshops at Stanford in March 2016 and Johns Hopkins in June 2017, we report on the recent advances in theory, instrumentation and…
Modeling the Intergalactic Medium during the Epoch of Reionization
Adam Lidz
A major goal of observational and theoretical cosmology is to observe the largely unexplored time period in the history of our universe when the first galaxies form, and to interpr…
HeII Reionization and its Effect on the IGM
Matthew McQuinn, Adam Lidz, Matias Zaldarriaga +4
Observations of the intergalactic medium (IGM) suggest that quasars reionize HeII in the IGM at z ~ 3. We have run a set of 190 and 430 comoving Mpc simulations of HeII being reion…
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…
Constraints on Quasar Lifetimes and Beaming from the HeII Lyman-alpha Forest
Steven Furlanetto, Adam Lidz
We show that comparisons of HeII Lyman-alpha forest lines of sight to nearby quasar populations can strongly constrain the lifetimes and emission geometry of quasars. By comparing…
Signatures of Accreting Black Holes in Line Intensity Mapping
Erika Ogata, Kana Moriwaki, Adam Lidz +2
Line-intensity mapping (LIM) has attracted growing attention as a powerful technique for probing the large-scale distribution of galaxies and the cosmic history of star formation t…
How to Search for Islands of Neutral Hydrogen in the IGM
Matthew Malloy, Adam Lidz
Observations of the Lyman-alpha (Ly-) forest may allow reionization to complete as late as , provided the ionization state of the intergalactic medium (IGM) is suff…
Widespread Extended [CII] Emission in High-Redshift Galaxies: Insights from the FIRE-2 Cosmological Zoom-in Simulations
Lun-Jun Liu, Guochao Sun, Andreas L. Faisst +2
Recent ALMA observations reveal diffuse [CII] emission ("[CII] halos") extending to kpc in galaxies at . These measurements provide new insights into high-red…
Measuring the EoR Power Spectrum Without Measuring the EoR Power Spectrum
Angus Beane, Francisco Villaescusa-Navarro, Adam Lidz
The large-scale structure of the Universe should soon be measured at high redshift during the Epoch of Reionization (EoR) through line-intensity mapping. A number of ongoing and pl…
Simulations and Analytic Calculations of Bubble Growth During Hydrogen Reionization
Oliver Zahn, Adam Lidz, Matthew McQuinn +4
We present results from a large volume simulation of Hydrogen reionization. We combine 3d radiative transfer calculations and an N-body simulation, describing structure formation i…
Primordial Non-Gaussianity and Reionization
Adam Lidz, Eric J. Baxter, Peter Adshead +1
The statistical properties of the primordial perturbations contain clues about the origins of those fluctuations. Although the Planck collaboration has recently obtained tight cons…
A New Framework for ISM Emission Line Models: Connecting Multi-Scale Simulations Across Cosmological Volumes
Shengqi Yang, Adam Lidz, Andrew Benson +7
The JWST and ALMA have detected emission lines from the ionized interstellar medium (ISM) in some of the first galaxies at . These measurements present an opportunity…
Non-Gaussianity and Excursion Set Theory: Halo Bias
Peter Adshead, Eric J. Baxter, Scott Dodelson +1
We study the impact of primordial non-Gaussianity generated during inflation on the bias of halos using excursion set theory. We recapture the familiar result that the bias scales…
Astro2020 Science White Paper: Insights Into the Epoch of Reionization with the Highly-Redshifted 21-cm Line
Steven Furlanetto, Chris L. Carilli, Jordan Mirocha +47
The epoch of reionization, when photons from early galaxies ionized the intergalactic medium about a billion years after the Big Bang, is the last major phase transition in the Uni…
The Implications of a Pre-reionization 21 cm Absorption Signal for Fuzzy Dark Matter
Adam Lidz, Lam Hui
The EDGES experiment recently announced evidence for a broad absorption feature in the sky-averaged radio spectrum around 78 MHz, as may result from absorption in the 21 cm line by…
The THESAN project: Lyman-alpha intensity mapping of cosmic reionization
Mouza Almualla, Aaron Smith, Rahul Kannan +6
Line Intensity Mapping (LIM) has garnered attention as a powerful cosmological probe, with next-generation instruments such as SPHEREx preparing to map the evolution of large-scale…
Probing bursty star formation by cross-correlating extragalactic background light and galaxy surveys
Guochao Sun, Adam Lidz, Andreas L. Faisst +1
Understanding the star formation rate (SFR) variability and how it depends on physical properties of galaxies is important for developing and testing the theory of galaxy formation…
Prospects for - Cross-Correlations during Reionization
Meng Zhou, Paul La Plante, Adam Lidz +2
The 21\,cm line and the patchy kinetic Sunyaev-Zel'dovich (kSZ) effect are promising and complementary probes of the Epoch of Reionization (EoR). A challenge for cross-correlating…
LIMFAST. IV. Learning High-Redshift Galaxy Formation from Multiline Intensity Mapping with Implicit Likelihood Inference
Guochao Sun, Tri Nguyen, Claude-André Faucher-Giguère +5
By opening up new avenues to statistically constrain astrophysics and cosmology with large-scale structure observations, the line intensity mapping (LIM) technique calls for novel…
The Co-Formation of Spheroids and Quasars Traced in their Clustering
Philip F. Hopkins, Adam Lidz, Lars Hernquist +4
We compare observed clustering of quasars and galaxies as a function of redshift, mass, luminosity, & color/morphology, to constrain models of quasar fueling and spheroid-BH co-evo…
Tomography of the Cosmic Dawn and Reionization Eras with Multiple Tracers
Tzu-Ching Chang, Angus Beane, Olivier Dore +41
The Cosmic Dawn and Reionization epochs remain a fundamental but challenging frontier of astrophysics and cosmology. We advocate a large-scale, multi-tracer approach to develop a c…
Reionization Models Classifier using 21cm Map Deep Learning
Sultan Hassan, Adrian Liu, Saul Kohn +3
Next-generation 21cm observations will enable imaging of reionization on very large scales. These images will contain more astrophysical and cosmological information than the power…
Beyond Lyman-alpha: Constraints and Consistency Tests from the Lyman-beta Forest
Mark Dijkstra, Adam Lidz, Lam Hui
Absorption between the rest-frame wavelengths of 973 and 1026 Angstroms in quasar spectra arises from two sources (apart from occasional metals): one is due to Lyman-alpha (Lya) ab…
On Removing Interloper Contamination from Intensity Mapping Power Spectrum Measurements
Adam Lidz, Jessie Taylor
Line intensity mapping experiments seek to trace large scale structure by measuring the spatial fluctuations in the combined emission, in some convenient spectral line, from indivi…
The 21 cm-kSZ-kSZ Bispectrum during the Epoch of Reionization
Paul La Plante, Adam Lidz, James Aguirre +1
The high-redshift 21 cm signal from the Epoch of Reionization (EoR) is a promising observational probe of the early universe. Current- and next-generation radio interferometers suc…
The ALMA Spectroscopic Survey in the HUDF: Constraining cumulative CO emission at with power spectrum analysis of ASPECS LP data from 84 to 115 GHz
Bade Uzgil, Chris Carilli, Adam Lidz +12
We present a power spectrum analysis of the ALMA Spectroscopic Survey Large Program (ASPECS LP) data from 84 to 115 GHz. These data predominantly probe small-scale fluctuations ($k…
Signatures of metal-free star formation in Planck 2015 Polarization Data
V Miranda, Adam Lidz, Chen He Heinrich +1
Standard analyses of the reionization history of the universe from Planck cosmic microwave background (CMB) polarization measurements consider only the overall optical depth to ele…
Probing Cosmic Magnetism with Rotation Measure-Squared-Galaxy Cross-Correlations
Zekai Zhang, Adam Lidz
We present a new approach for extracting information about cosmic magnetic fields using cross-correlations between extragalactic Faraday rotation measure (RM) catalogs and galaxy s…
Fuzzy Dark Matter Halo Mass Functions at Cosmic Dawn
Raghunath Ghara, Adam Lidz, Daniel Grin +1
In fuzzy dark matter (FDM) cosmological models, wave effects impact astrophysical length scales, suppressing the abundance of small mass dark matter halos, and delaying the earlies…
Adding Context to JWST Surveys with Current and Future 21cm Radio Observations
Adam P. Beardsley, Miguel F. Morales, Adam Lidz +2
Infrared and radio observations of the Epoch of Reionization promise to revolutionize our understanding of the cosmic dawn, and major efforts with the JWST, MWA and HERA are underw…
Efficient simulations of ionized ISM emission lines: A detailed comparison between the FIRE high-redshift suite and observations
Shengqi Yang, Adam Lidz, Aaron Smith +2
The Atacama Large Millimeter/Submillimeter Array (ALMA) in the sub-millimeter and the James Webb Space Telescope (JWST) in the infrared have achieved robust spectroscopic detection…
Gravitational Lensing as Signal and Noise in Lyman-alpha Forest Measurements
Marilena LoVerde, Stefanos Marnerides, Lam Hui +2
In Lyman-alpha forest measurements it is generally assumed that quasars are mere background light sources which are uncorrelated with the forest. Gravitational lensing of the quasa…
Probing Reionization with the 21 cm-Galaxy Cross Power Spectrum
Adam Lidz, Oliver Zahn, Steven Furlanetto +3
The cross-correlation between high redshift galaxies and 21 cm emission from the high redshift intergalactic medium (IGM) promises to be an excellent probe of the Epoch of Reioniza…
Astro 2020 Science White Paper: Fundamental Cosmology in the Dark Ages with 21-cm Line Fluctuations
Steven Furlanetto, Judd D. Bowman, Jordan Mirocha +43
The Dark Ages are the period between the last scattering of the cosmic microwave background and the appearance of the first luminous sources, spanning approximately 1100 < z < 30.…
On Modeling and Measuring the Temperature of the z~5 IGM
Adam Lidz, Matthew Malloy
The temperature of the low-density intergalactic medium (IGM) at high redshift is sensitive to the timing and nature of hydrogen and HeII reionization, and can be measured from Lym…
Mapping Cosmic Dawn and Reionization: Challenges and Synergies
Marcelo A. Alvarez, Anastasia Fialkov, Paul La Plante +47
Cosmic dawn and the Epoch of Reionization (EoR) are among the least explored observational eras in cosmology: a time at which the first galaxies and supermassive black holes formed…
Detecting the Rise and Fall of 21 cm Fluctuations with the Murchison Widefield Array
Adam Lidz, Oliver Zahn, Matthew McQuinn +2
We forecast the sensitivity with which the Murchison Widefield Array (MWA) can measure the 21 cm power spectrum of cosmic hydrogen, using radiative transfer simulations to model re…
Rise of the forsaken relics: connecting present-day stellar streams and phase-mixed galaxies to the Epoch of Reionization
Aritra Kundu, Robyn Sanderson, Adam Lidz +6
The `near-far' approach to studying reionization leverages the star formation histories of the Milky Way (MW) or Local Group (LG) galaxies, derived from resolved photometry, to inf…
A Measurement of the Galaxy Group-Thermal Sunyaev-Zel'dovich Effect Cross-Correlation Function
Vinu Vikram, Adam Lidz, Bhuvnesh Jain
Stacking cosmic microwave background (CMB) maps around known galaxy clusters and groups provides a powerful probe of the distribution of hot gas in these systems via the Sunyaev-Ze…
Tightening Constraints from the Lyman Alpha Forest with the Flux Probability Distribution Function
Adam Lidz, Katrin Heitmann, Lam Hui +3
The analysis of the Lyman-alpha forest of absorption lines in quasar spectra has emerged as a potentially powerful technique to constrain the linear matter power spectrum. In most…
Astro2020 Science White Paper: First Stars and Black Holes at Cosmic Dawn with Redshifted 21-cm Observations
Jordan Mirocha, Daniel Jacobs, Josh Dillon +39
The "cosmic dawn" refers to the period of the Universe's history when stars and black holes first formed and began heating and ionizing hydrogen in the intergalactic medium (IGM).…
Identifying Ionized Regions in Noisy Redshifted 21 cm Data Sets
Matthew Malloy, Adam Lidz
One of the most promising approaches for studying reionization is to use the redshifted 21 cm line. Early generations of redshifted 21 cm surveys will not, however, have the sensit…
The Luminosity Dependence of Quasar Clustering
Adam Lidz, Philip F. Hopkins, Thomas J. Cox +2
We investigate the luminosity dependence of quasar clustering, inspired by numerical simulations of galaxy mergers that incorporate black hole growth. These simulations have motiva…
The prospects for observing [OIII] 52 micron emission from galaxies during the Epoch of Reionization
Shengqi Yang, Adam Lidz, Gergö Popping
The [OIII] 88 m fine structure emission line has been detected into the Epoch of Reionization (EoR) from star-forming galaxies at redshifts with ALMA. These…
Towards Constraints on Dark Energy from Absorption Spectra of Close Quasar Pairs
Adam Lidz, Lam Hui, Arlin P. S. Crotts +1
A comparison between the line of sight power spectrum of absorption in the Lyman-alpha forest and the cross power spectrum between the absorption in neighboring lines of sight offe…
Cosmology with the Highly Redshifted 21cm Line
Adrian Liu, James Aguirre, Yacine Ali-Haimoud +47
In addition to being a probe of Cosmic Dawn and Epoch of Reionization astrophysics, the 21cm line at is also a powerful way to constrain cosmology. Its power derives from sev…
Reionization and high-redshift galaxies: the view from quasar absorption lines
George D. Becker, James S. Bolton, Adam Lidz
Determining when and how the first galaxies reionized the intergalactic medium (IGM) promises to shed light on both the nature of the first objects and the cosmic history of baryon…
Cosmology from the Highly-Redshifted 21 cm Line
Steven Furlanetto, Adam Lidz, Abraham Loeb +26
One of the next decade's most exciting prospects is to explore the cosmic "dark ages," during which the first stars in the Universe formed, with the 21 cm line of neutral hydrogen.…
The Effects of Patchy Reionization on Satellite Galaxies of the Milky Way
Ragnhild Lunnan, Mark Vogelsberger, Anna Frebel +3
We combine the high-resolution Aquarius simulations with three-dimensional models of reionization based on the initial density field of the Aquarius parent simulation, Millennium-I…
Analytical Estimates of Gravitational Wave Background Anisotropies from Shot Noise and Large-Scale Structure in Pulsar Timing Arrays
Meng-Xiang Lin, Adam Lidz, Chung-Pei Ma
An important next step for pulsar timing arrays (PTAs) is to measure anisotropies in the gravitational wave background (GWB) at nano-Hz frequencies. We calculate the expecte…
Signatures of high-redshift galactic outflows in the thermal Sunyaev Zel'dovich effect
Guochao Sun, Steven R. Furlanetto, Adam Lidz
Anisotropies of the Sunyaev Zel'dovich (SZ) effect serve as a powerful probe of the thermal history of the universe. At high redshift, hot galactic outflows driven by supernovae (S…
Extracting bias using the cross-bispectrum: An EoR and 21 cm-[CII]-[CII] case study
Angus Beane, Adam Lidz
The amplitude of redshifted 21 cm fluctuations during the Epoch of Reionization (EoR) is expected to show a distinctive "rise and fall" behavior with decreasing redshift as reioniz…
Quasar Proximity Zones and Patchy Reionization
Adam Lidz, Matthew McQuinn, Matias Zaldarriaga +2
Lyman-alpha forest absorption spectra towards quasars at z ~ 6 show regions of enhanced transmission close to their source. Several authors have argued that the apparently small si…
An analytic model for OIII fine structure emission from high redshift galaxies
Shengqi Yang, Adam Lidz
Recent ALMA measurements have revealed bright OIII 88 micron line emission from galaxies during the Epoch of Reionization (EoR) at redshifts as large as . We introduce an…
Astrophysics from the Highly-Redshifted 21 cm Line
Steven Furlanetto, Adam Lidz, Abraham Loeb +26
The cosmic dark ages and the epoch of reionization, during which the first generations of stars and galaxies formed, are among the most compelling frontiers of extragalactic astrop…
The wedge bias in reionization 21-cm power spectrum measurements
Hannes Jensen, Suman Majumdar, Garrelt Mellema +3
A proposed method for dealing with foreground emission in upcoming 21-cm observations from the epoch of reionization is to limit observations to an uncontaminated window in Fourier…
A Measurement of Small Scale Structure in the 2.2 < z < 4.2 Lyman-alpha Forest
Adam Lidz, C. -A. Faucher-Giguere, Aldo Dall'Aglio +5
The amplitude of fluctuations in the Ly-a forest on small spatial scales is sensitive to the temperature of the IGM and its spatial fluctuations. The temperature of the IGM and its…
The Impact of The IGM on High-Redshift Lyman Alpha Emission Lines
Mark Dijkstra, Adam Lidz, Stuart Wyithe
We calculate the impact of the intergalactic medium (IGM) on the observed Lyman alpha lines (hereafter Lya) emitted by galaxies in an ionised IGM at z>4. Our model accounts for gas…
Higher Order Contributions to the 21 cm Power Spectrum
Adam Lidz, Oliver Zahn, Matthew McQuinn +3
We consider the contribution of 3rd and 4th order terms to the power spectrum of 21 cm brightness temperature fluctuations during the epoch of reionization, which arise because the…
Intensity mapping from the sky: synergizing the joint potential of [OIII] and [CII] surveys at reionization
Hamsa Padmanabhan, Patrick Breysse, Adam Lidz +1
We forecast the ability of future-generation experiments to detect the fine-structure lines of the carbon and oxygen ions, [CII] and [OIII] in intensity mapping (IM) from the Epoch…
Future Constraints on the Reionization History and the Ionizing Sources from Gamma-ray Burst Afterglows
Adam Lidz, Tzu-Ching Chang, LluÃs Mas-Ribas +1
We forecast the reionization history constraints, inferred from Lyman-alpha damping wing absorption features, for a future sample of gamma-ray burst (GRB) afte…
Astro2020 Science White Paper: Synergies Between Galaxy Surveys and Reionization Measurements
Steven Furlanetto, Adam Beardsley, Chris L. Carilli +47
The early phases of galaxy formation constitute one of the most exciting frontiers in astrophysics. It is during this era that the first luminous sources reionize the intergalactic…
The Impact of Temperature Fluctuations on the Lyman-alpha Forest Power Spectrum
Kamson Lai, Adam Lidz, Lars Hernquist +1
We explore the impact of spatial fluctuations in the intergalactic medium temperature on the Lyman-alpha forest flux power spectrum near z ~ 3. We develop a semianalytic model to e…
Cross-correlations as a cosmological carbon monoxide detector
Anthony Pullen, Tzu-Ching Chang, Olivier Dore +1
We present a new procedure to measure the large-scale carbon monoxide (CO) emissions across cosmic history. As a tracer of large-scale structure (LSS), the CO gas content as a func…
The Star Formation Efficiency During Reionization as Inferred from the Hubble Frontier Fields
Jackson Sipple, Adam Lidz
A recent ultraviolet luminosity function (UVLF) analysis in the Hubble Frontier Fields, behind foreground lensing clusters, has helped solidify estimates of the faint-end of the $z…
On the Detectability of the Hydrogen 3-cm Fine Structure Line from the EoR
Mark Dijkstra, Adam Lidz, Jonathan R. Pritchard +4
A soft ultraviolet radiation field, 10.2 eV < E <13.6 eV, that permeates neutral intergalactic gas during the Epoch of Reionization (EoR) excites the 2p (directly) and 2s (indirect…
Prospects for kSZ-Galaxy Cross-Correlations during Reionization
Paul La Plante, Jackson Sipple, Adam Lidz
We explore a new approach for extracting reionization-era contributions to the kinetic Sunyaev-Zel'dovich (kSZ) effect. Our method utilizes the cross-power spectrum between filtere…
Measuring Galaxy Clustering and the Evolution of [CII] Mean Intensity with far-IR Line Intensity Mapping During 0.5 < z < 1.5
Bade D. Uzgil, James E. Aguirre, Charles M. Bradford +1
Infrared fine-structure emission lines from trace metals are powerful diagnostics of the interstellar medium in galaxies. We explore the possibility of studying the redshifted far-…
What do observations of the Lyman-alpha fraction tell us about reionization?
Jessie Taylor, Adam Lidz
An appealing approach for studying the reionization history of the Universe is to measure the redshift evolution of the Lyman-alpha fraction, the percentage of Lyman-break selected…
Probing the Neutral Fraction of the IGM with GRBs during the Epoch of Reionization
Matthew McQuinn, Adam Lidz, Matias Zaldarriaga +2
We show that near-infrared observations of the red side of the Ly-alpha line from a single gamma ray burst (GRB) afterglow cannot be used to constrain the global neutral fraction o…
How Neutral is the Intergalactic Medium at z ~ 6?
Adam Lidz, Lam Hui, Matias Zaldarriaga +1
Recent observations of high redshift quasar spectra reveal long gaps with little flux. A small or no detectable flux does not by itself imply the intergalactic medium (IGM) is neut…
Do cosmological simulations reproduce the [OIII] 88 m line emission and properties of JWST-discovered galaxies at ?
Shengqi Yang, Adam Lidz, Hui Li +3
Recent ALMA observations of the [OIII] 88 m line provide spectroscopic confirmation of two JWST photometric candidates, GS-z14 and GHZ2, at and , respectively.…
The Cross-Correlation of High-Redshift 21 cm and Galaxy Surveys
Steven Furlanetto, Adam Lidz
We study the detectability of the cross-correlation between 21 cm emission from the intergalactic medium and the galaxy distribution during (and before) reionization. We show that…
Fuzzy Dark Matter Constraints from the Hubble Frontier Fields
Jackson Sipple, Adam Lidz, Daniel Grin +1
In fuzzy dark matter (FDM) cosmologies, the dark matter consists of ultralight bosons ( eV). The astrophysically large de Broglie wavelengths of such particles h…
Analytical strong line diagnostics and their redshift evolution
Shengqi Yang, Adam Lidz, Andrew Benson +3
The \textit{JWST} is allowing new measurements of gas-phase metallicities in galaxies between cosmic noon and cosmic dawn. The most robust approach uses luminosity ratios between t…
The morphology of HII regions during reionization
Matthew McQuinn, Adam Lidz, Oliver Zahn +3
It is possible that the properties of HII regions during reionization depend sensitively on many poorly constrained quantities (the nature of the ionizing sources, the clumpiness o…
Fuzzy Dark Matter and the 21cm Power Spectrum
Dana Jones, Skyler Palatnick, Richard Chen +2
We model the 21cm power spectrum across the Cosmic Dawn and the Epoch of Reionization (EoR) in fuzzy dark matter (FDM) cosmologies. The suppression of small mass halos in FDM model…
Is the Radio Source Dipole from NVSS Consistent with the CMB and CDM?
Yun-Ting Cheng, Tzu-Ching Chang, Adam Lidz
The dipole moment in the angular distribution of the cosmic microwave background (CMB) is thought to originate from the Doppler effect and our motion relative to the CMB frame. Obs…
Line-Intensity Mapping
Tzu-Ching Chang, Adam Lidz
Line-Intensity Mapping (LIM) has emerged as a powerful technique for studying large-scale structure and the high-redshift universe, enabling three-dimensional maps of line emission…
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…
A New Window into the Baryon Cycle at Cosmic Noon with Line Intensity Mapping: Forecasts for auto- and cross-correlations in [CII]-158m, HI 21 cm, CO, and H galaxies
Shubh Agrawal, James E. Aguirre, Justin S. Bracks +24
Across the peak of cosmic star formation at , inflow, processing, and feedback drive rapid changes in the spatial distribution and chemical composition of baryons in gala…
Insights into the 21 cm field from the vanishing cross-power spectrum at the epoch of reionization
Kana Moriwaki, Angus Beane, Adam Lidz
The early stages of the Epoch of Reionization, probed by the 21 cm line, are sensitive to the detailed properties and formation histories of the first galaxies. We use 21cmFAST and…
Have We Detected Patchy Reionization in Quasar Spectra?
Adam Lidz, S. Peng Oh, Steven R. Furlanetto
The Lyman-alpha forest at z >~ 5.5 shows strong scatter in the mean transmission even when smoothed over very large spatial scales, >~ 50 Mpc/h. This has been interpreted as a sign…