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View article: Learning the Universe: learning to optimize cosmic initial conditions with non-differentiable structure formation models
Learning the Universe: learning to optimize cosmic initial conditions with non-differentiable structure formation models Open
Making the most of next-generation galaxy clustering surveys requires overcoming challenges in complex, non-linear modelling to access the significant amount of information at smaller cosmological scales. Field-level inference has provided…
View article: The Manticore Project I: a digital twin of our cosmic neighbourhood from Bayesian field-level analysis
The Manticore Project I: a digital twin of our cosmic neighbourhood from Bayesian field-level analysis Open
We present the first results from the Manticore project, dubbed Manticore-Local, a suite of Bayesian constrained simulations of the nearby Universe, generated by fitting a physical structure formation model to the 2M++ galaxy catalogue usi…
View article: The <tt>Manticore</tt> Project I: a digital twin of our cosmic neighbourhood from Bayesian field-level analysis
The Manticore Project I: a digital twin of our cosmic neighbourhood from Bayesian field-level analysis Open
We present the first results from the Manticore Project, dubbed Manticore-Local, a suite of Bayesian constrained simulations of the nearby Universe, generated by fitting a physical structure formation model to the 2M++ galaxy catalogue usi…
View article: Comparative Evaluation of Machine Learning Models for Mobile Phone Price Prediction: Assessing Accuracy, Robustness, and Generalization Performance
Comparative Evaluation of Machine Learning Models for Mobile Phone Price Prediction: Assessing Accuracy, Robustness, and Generalization Performance Open
These days, mobile phones are the most commonly purchased goods. Thousands of new models with improved features, designs, and specifications are released yearly. An autonomous mobile price prediction system is required to assist customers …
View article: The dependence of galaxy properties on the underlying three-dimensional matter density field at 2.0 &lt; <i>z</i> &lt; 2.5
The dependence of galaxy properties on the underlying three-dimensional matter density field at 2.0 < <i>z</i> < 2.5 Open
We study the environmental effect of galaxy evolution as a function of the underlying three-dimensional dark matter density for the first time at $z=2$–2.5, in which the underlying matter density is reconstructed from observed galaxies thr…
View article: FLIMFLAM DR1: The First Constraints on the Cosmic Baryon Distribution from Eight Fast Radio Burst Sight Lines
FLIMFLAM DR1: The First Constraints on the Cosmic Baryon Distribution from Eight Fast Radio Burst Sight Lines Open
The dispersion measure of fast radio bursts (FRBs), arising from the interactions with free electrons along the propagation path, constitutes a unique probe of the cosmic baryon distribution. Their constraining power is further enhanced in…
View article: FLIMFLAM DR1: The First Constraints on the Cosmic Baryon Distribution from 8 FRB sightlines
FLIMFLAM DR1: The First Constraints on the Cosmic Baryon Distribution from 8 FRB sightlines Open
The dispersion measure of fast radio bursts (FRBs), arising from the interactions of the pulses with free electrons along the propagation path, constitutes a unique probe of the cosmic baryon distribution. Their constraining power is furth…
View article: The FRB 20190520B Sight Line Intersects Foreground Galaxy Clusters
The FRB 20190520B Sight Line Intersects Foreground Galaxy Clusters Open
The repeating fast radio burst FRB 20190520B is an anomaly of the FRB population thanks to its high dispersion measure (DM = 1205 pc cm −3 ) despite its low redshift of z frb = 0.241. This excess has been attributed to a large host contrib…
View article: Searching for the Sources of Excess Extragalactic Dispersion of FRBs
Searching for the Sources of Excess Extragalactic Dispersion of FRBs Open
The FLIMFLAM survey is collecting spectroscopic data of field galaxies near fast radio burst (FRB) sight lines to constrain key parameters describing the distribution of matter in the Universe. In this work, we leverage the survey data to …
View article: The FRB20190520B Sightline Intersects Foreground Galaxy Clusters
The FRB20190520B Sightline Intersects Foreground Galaxy Clusters Open
The repeating fast radio burst FRB20190520B is an anomaly of the FRB population thanks to its high dispersion measure (DM$=1205\,$pc/cc) despite its low redshift of $z_\mathrm{frb}=0.241$. This excess has been attributed to a large host co…
View article: Searching for the sources of excess extragalactic dispersion of FRBs
Searching for the sources of excess extragalactic dispersion of FRBs Open
The FLIMFLAM survey is collecting spectroscopic data of field galaxies near fast radio burst (FRB) sightlines to constrain key parameters describing the distribution of matter in the Universe. In this work, we leverage the survey data to d…
View article: Searching for the sources of excess extragalactic dispersion of FRBs
Searching for the sources of excess extragalactic dispersion of FRBs Open
The FLIMFLAM survey is collecting spectroscopic data of field galaxies near fast radio burst (FRB) sightlines to constrain key parameters describing the distribution of matter in the Universe. In this work, we leverage the survey data to d…
View article: Observational Evidence for Large-scale Gas Heating in a Galaxy Protocluster at z = 2.30
Observational Evidence for Large-scale Gas Heating in a Galaxy Protocluster at z = 2.30 Open
We report a z = 2.30 galaxy protocluster (COSTCO-I) in the COSMOS field, where the Ly α forest as seen in the CLAMATO IGM tomography survey does not show significant absorption. This departs from the transmission–density relationship (ofte…
View article: The Dependence of Galaxy Properties on the Underlying 3D Matter Density Field at 2.0 < z < 2.5
The Dependence of Galaxy Properties on the Underlying 3D Matter Density Field at 2.0 < z < 2.5 Open
We study the environmental effect of galaxy evolution as a function of the underlying 3D dark matter density for the first time at $z=2-2.5$, in which the underlying matter density is reconstructed from observed galaxies through dynamical …
View article: Revisiting Tests of Lorentz Invariance with Gamma-ray Bursts: Effects of Intrinsic Lags
Revisiting Tests of Lorentz Invariance with Gamma-ray Bursts: Effects of Intrinsic Lags Open
Due to their cosmological distances high-energy astrophysical sources allow for unprecedented tests of fundamental physics. Gamma-ray bursts (GRBs) comprise among the most sensitive laboratories for exploring the violation of the central p…
View article: Second Data Release of the COSMOS Lyα Mapping and Tomography Observations: The First 3D Maps of the Detailed Cosmic Web at 2.05 < z < 2.55
Second Data Release of the COSMOS Lyα Mapping and Tomography Observations: The First 3D Maps of the Detailed Cosmic Web at 2.05 < z < 2.55 Open
We present the second data release of the COSMOS Ly α Mapping And Tomography Observations Survey conducted with the Low Resolution Imaging Spectrometer on the Keck I telescope. This project used Ly α forest absorption in the spectra of fai…
View article: COSTCO Snapshots
COSTCO Snapshots Open
Constrained Simulations of the COSMOS field (COSTCO). Snapshots for z=2.3 and z=0
View article: COSTCO Snapshots
COSTCO Snapshots Open
Constrained Simulations of the COSMOS field (COSTCO). Snapshots for z=2.3 and z=0
View article: The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar, and APOGEE-2 Data
The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar, and APOGEE-2 Data Open
This paper documents the seventeenth data release (DR17) from the Sloan Digital Sky Surveys; the fifth and final release from the fourth phase (SDSS-IV). DR17 contains the complete release of the Mapping Nearby Galaxies at Apache Point Obs…
View article: Mapping the Three-dimensional Lyα Forest Large-scale Structure in Real and Redshift Space*
Mapping the Three-dimensional Lyα Forest Large-scale Structure in Real and Redshift Space* Open
This work presents a new physically motivated supervised machine-learning method, hydro-bam , to reproduce the three-dimensional Ly α forest field in real and redshift space, which learns from a reference hydrodynamic simulation and thereb…
View article: Constraining the Cosmic Baryon Distribution with Fast Radio Burst Foreground Mapping
Constraining the Cosmic Baryon Distribution with Fast Radio Burst Foreground Mapping Open
The dispersion measure of fast radio bursts (FRBs) encodes the integrated electron density along the line of sight, which is typically dominated by the intergalactic medium contribution in the case of extragalactic FRBs. In this paper, we …
View article: The Bias from Hydrodynamic Simulations: Mapping Baryon Physics onto Dark Matter Fields
The Bias from Hydrodynamic Simulations: Mapping Baryon Physics onto Dark Matter Fields Open
This paper investigates the hierarchy of baryon physics assembly bias relations obtained from state-of-the-art hydrodynamic simulations with respect to the underlying cosmic web spanned by the dark matter field. Using the Bias Assignment M…
View article: Second Data Release of the COSMOS Lyman-alpha Mapping and Tomographic Observation: The First 3D Maps of the Detailed Cosmic Web at 2.05
Second Data Release of the COSMOS Lyman-alpha Mapping and Tomographic Observation: The First 3D Maps of the Detailed Cosmic Web at 2.05 Open
We present the second data release of the COSMOS Lyman-Alpha Mapping And Tomography Observations (CLAMATO) Survey conducted with the LRIS spectrograph on the Keck-I telescope. This project used Lyman-alpha forest absorption in the spectra …
View article: Second Data Release of the COSMOS Lyman-alpha Mapping and Tomographic Observation: The First 3D Maps of the Large-Scale Cosmic Web at 2.05<z<2.55
Second Data Release of the COSMOS Lyman-alpha Mapping and Tomographic Observation: The First 3D Maps of the Large-Scale Cosmic Web at 2.05<z<2.55 Open
We present the second data release of the COSMOS Lyman-Alpha Mapping And
Tomography Observations (CLAMATO) Survey conducted with the LRIS spectrograph
on the Keck-I telescope. This project used \lyaf{} absorption in the spectra of
faint st…
View article: Mapping Lyman-alpha forest three-dimensional large scale structure in real and redshift space
Mapping Lyman-alpha forest three-dimensional large scale structure in real and redshift space Open
This work presents a new physically-motivated supervised machine learning method, Hydro-BAM, to reproduce the three-dimensional Lyman-$α$ forest field in real and in redshift space learning from a reference hydrodynamic simulation, thereby…
View article: Pre-heating in proto-clusters with Lyman Alpha forest tomography
Pre-heating in proto-clusters with Lyman Alpha forest tomography Open
The Lyman Alpha forest is currently one of the best probes of the neutral gas on large scales at high redshift (z ~ 2-3). The onset of large Lyman Alpha forest tomographic surveys, such as CLAMATO, allows for the study of the influence of …
View article: Higher order Hamiltonian Monte Carlo sampling for cosmological large-scale structure analysis
Higher order Hamiltonian Monte Carlo sampling for cosmological large-scale structure analysis Open
We investigate higher order symplectic integration strategies within Bayesian cosmic density field reconstruction methods. In particular, we study the fourth-order discretization of Hamiltonian equations of motion (EoM). This is achieved b…
View article: BIRTH of the COSMOS field: Primordial and evolved density reconstructions during cosmic high noon
BIRTH of the COSMOS field: Primordial and evolved density reconstructions during cosmic high noon Open
This work presents the first comprehensive study of structure formation at the peak epoch of cosmic star formation over 1.4 ≤ z ≤ 3.6 in the Cosmic Evolution Survey (COSMOS) field, including the most massive high-redshift galaxy proto-clus…