1.9k citations · 7.8k across the 73 of their papers we have counts for
75 papers
Field-level inference of growth rate from DESI BGS galaxy and ZTF supernova simulations
Corentin Ravoux, Bastien Carreres, Julian Bautista +60
Galaxy peculiar velocities are a powerful probe of the growth rate of structure at low redshifts (), measured through the combination . These constraints are imp…
Skipping the rungs! Calibrating distance indicators through their clustering with galaxies
Madeline L. Cross-Parkin, Leonardo Giani, Cullan Howlett +1
We show that angular cross-correlations between distance indicators and galaxy redshift catalogues, when interpreted within an assumed cosmological model, can constrain potential b…
Illuminating the Physics of Cosmic Origin and Evolution: A UK Space Frontiers 2035 White Paper
Florian Beutler, Eva-Maria Mueller, Seshadri Nadathur +61
Understanding the Universe's origins and evolution remains one of the most fundamental challenges in modern cosmology. This white paper explores three key science priorities in thi…
The velocity coherence scale: a novel probe of cosmic homogeneity and a potential standard ruler
Leonardo Giani, Cullan Howlett, Chris Blake +2
We introduce the velocity coherence scale , the scale at which the spherical volume average of the trace of the velocity correlation tensor transitions from scaling faster tha…
Detection of the Pairwise Kinematic Sunyaev-Zel'dovich Effect and Pairwise Velocity with DESI DR1 Galaxies and ACT DR6 and Planck CMB Data
Yulin Gong, Patricio A. Gallardo, Rachel Bean +50
We present a 9.3-sigma detection of the pairwise kinematic Sunyaev-Zeldovich (kSZ) effect by combining a sample of 913,286 Luminous Red Galaxies (LRGs) from the Dark Energy Spectro…
Limits of self-interacting neutrinos from the BAO and CMB phase shift
Abbé M. Whitford, Cullan Howlett, Tamara M. Davis +2
Neutrinos with Standard Model interactions free-stream in the early Universe, leaving a distinct phase shift in the pattern of baryon acoustic oscillations (BAO). When isolated, th…
Can a multi-tracer approach improve the constraints on the turnover scale at low redshift?
Yan Lai, Cullan Howlett, Tamara Davis
The turnover scale of the power spectrum is related to the size of the particle horizon at the matter-radiation equality, which can be used as a standard ruler to constrain cosmolo…
Effective Theories of Redshift-Space Galaxy Peculiar Velocities
Shi-Fan Chen, Cullan Howlett, Yan Lai +1
We present predictions for redshift-space peculiar velocity statistics in the Lagrangian and Eulerian formulations of the effective field theory (EFT) of large-scale structure. We…
Dark sirens and the impact of redshift precision
Madeline L. Cross-Parkin, Cullan Howlett, Tamara M. Davis +1
With the growing number of gravitational wave detections, achieving a competitive measurement of with dark sirens is becoming increasingly feasible. The expansion of the Ligo…
The Redshift-Space Momentum Power Spectrum III: measuring the growth rate from the SDSSv survey using auto- and cross- power spectrum of the galaxy density and momentum fields
Fei Qin, Cullan Howlett, David Parkinson
The large-scale structure of the Universe and its evolution over time contains an abundance of cosmological information. One way to unlock this is by measuring the density and mome…
The Atacama Cosmology Telescope DR6 and DESI: Structure growth measurements from the cross-correlation of DESI Legacy Imaging galaxies and CMB lensing from ACT DR6 and Planck PR4
Frank J. Qu, Qianjun Hang, Gerrit Farren +51
We measure the growth of cosmic density fluctuations on large scales and across the redshift range through the cross-correlation of the ACT DR6 CMB lensing map and gala…
The Hubble Tension in our own Backyard: DESI and the Nearness of the Coma Cluster
Daniel Scolnic, Adam G. Riess, Yukei S. Murakami +8
The Dark Energy Spectroscopic Instrument (DESI) collaboration measured a tight relation between the Hubble constant () and the distance to the Coma cluster using the fundament…
Detection of the large-scale tidal field with galaxy multiplet alignment in the DESI Y1 spectroscopic survey
Claire Lamman, Daniel Eisenstein, Jaime E. Forero-Romero +36
We explore correlations between the orientations of small galaxy groups, or "multiplets", and the large-scale gravitational tidal field. Using data from the Dark Energy Spectroscop…
Improving the Determination of Supernova Cosmological Redshifts by Using Galaxy Groups
Erik R. Peterson, Bastien Carreres, Anthony Carr +9
At the low-redshift end () of the Hubble diagram with Type Ia Supernovae (SNe Ia), the contribution to Hubble residual scatter from peculiar velocities is of similar size t…
A Trifecta of Modelling Tools: A Bayesian Binary Black Hole Model Selection combining Population Synthesis and Galaxy Formation Models
Liana Rauf, Cullan Howlett, Simon Stevenson +2
Gravitational waves (GWs) have revealed surprising properties of binary black hole (BBH) populations, but there is still mystery surrounding how these compact objects evolve. We ap…
The MOST Hosts Survey: spectroscopic observation of the host galaxies of ~40,000 transients using DESI
Maayane T. Soumagnac, Peter Nugent, Robert A. Knop +54
We present the MOST Hosts survey (Multi-Object Spectroscopy of Transient Hosts). The survey is planned to run throughout the five years of operation of the Dark Energy Spectroscopi…
Baryon Acoustic Oscillation Theory and Modelling Systematics for the DESI 2024 results
Shi-Fan Chen, Cullan Howlett, Martin White +58
This paper provides a comprehensive overview of how fitting of Baryon Acoustic Oscillations (BAO) is carried out within the upcoming Dark Energy Spectroscopic Instrument's (DESI) 2…
An effective description of Laniakea: impact on cosmology and the local determination of the Hubble constant
L. Giani, C. Howlett, K. Said +2
We propose an effective model to describe the bias induced on cosmological observables by Laniakea, the gravitational supercluster hosting the Milky Way, which was defined using pe…
The Galaxy Number Density Profile of Haloes
Fei Qin, David Parkinson, Adam R. H. Stevens +1
More precise measurements of galaxy clustering will be provided by the next generation of galaxy surveys such as DESI, WALLABY and SKA. To utilize this information to improve our u…
Ho'oleilana: An Individual Baryon Acoustic Oscillation?
R. Brent Tully, Cullan Howlett, Daniel Pomarede
Theory of the physics of the early hot universe leads to a prediction of baryon acoustic oscillations that has received confirmation from the pair-wise separations of galaxies in s…
Evaluating bulk flow estimators for CosmicFlows-4 measurements
A. M. Whitford, C. Howlett, T. M. Davis
For over a decade there have been contradictory claims in the literature about whether the local bulk flow motion of galaxies is consistent or in tension with the CDM model. Whi…
The Early Data Release of the Dark Energy Spectroscopic Instrument
DESI Collaboration, A. G. Adame, J. Aguilar +266
The Dark Energy Spectroscopic Instrument (DESI) completed its five-month Survey Validation in May 2021. Spectra of stellar and extragalactic targets from Survey Validation constitu…
Validation of the Scientific Program for the Dark Energy Spectroscopic Instrument
DESI Collaboration, A. G. Adame, J. Aguilar +261
The Dark Energy Spectroscopic Instrument (DESI) was designed to conduct a survey covering 14,000 deg over five years to constrain the cosmic expansion history through precise m…
Faster cosmological analysis with power spectrum without simulations
Yan Lai, Cullan Howlett, Tamara M. Davis
Future surveys could obtain tighter constraints on the cosmological parameters with the galaxy power spectrum than with the Cosmic Microwave Background. However, the inclusion o…