Will Percival

Will Percival profile picture
University of Waterloo
Associate Faculty
Areas of research:
Cosmology
I work in the field of cosmology, using observations to test theoretical models. I focus particularly on galaxy surveys, using the positions of galaxies to measure the cosmological expansion rate and growth of cosmological structure. I use these to constrain Dark Energy, the mechanism responsible for the present-day acceleration in the expansion rate.
  • 2005-2018 Institute of Cosmology & Gravitation, University of Portsmouth, Professor of Cosmology
  • S.Avila, (27 co-authors including W.J.Percival), The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: exploring the Halo Occupation Distribution model of Emission Line Galaxies, 2020, [arXiv: 2007.09012]
  • A. Tamone, (27 co-authors including W.J. Percival), The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Growth rate of structure measurement from anisotropic clustering analysis in configuration space between redshift 0.6 and 1.1 for the Emission Line Galaxy sample, 2020, [arXiv: 2007.09009]
  • H. du Mas des Bourboux, (36 co-authors including W.J. Percival), The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Baryon acoustic oscillations with Lyman-alpha forests, 2020, [arXiv: 2007.08995]
  • Y. Wang, (27 co-authors including W.J. Percival), The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR16 luminous red galaxy and emission line galaxy samples: cosmic distance and structure growth measurements using multiple tracers in configuration space, 2020, [arXiv: 2007.09010]
  • G.B.Zhao, (24 co-authors including W.J.Percival), The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: a multi-tracer analysis in Fourier space for measuring the cosmic structure growth and expansion rate, 2020, [arXiv: 2007.09011]
  • S.Alam, (29 co-authors including W.J.Percival), The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: N-body Mock Challenge for the eBOSS Emission Line Galaxy Sample, 2020, [arXiv: 2007.09004]
  • A. Smith, (19 co-authors including W.J. Percival), The Completed SDSS-IV Extended Baryon Oscillation Spectroscopic Survey: N-body Mock Challenge for the Quasar Sample, 2020, [arXiv: 2007.09003]
  • G. Rossi, (21 co-authors including W.J. Percival), The Completed SDSS-IV Extended Baryon Oscillation Spectroscopic Survey: N-body Mock Challenge for Galaxy Clustering Measurements, 2020, [arXiv: 2007.09002]
  • C. Zhao, (20 co-authors including W.J. Percival), The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: one thousand multi-tracer mock catalogues with redshift evolution and systematics for galaxies and quasars of the final data release, 2020, [arXiv: 2007.08997]
  • S. Lin, (13 co-authors including W.J. Percival), The Completed SDSS-IV Extended Baryon Oscillation Spectroscopic Survey: GLAM-QPM mock galaxy catalogs for the Emission Line Galaxy Sample, 2020, [arXiv: 2007.08996]
  • M.S. Wang, S. Avila, D. Bianchi, R. Crittenden, W.J. Percival, Hybrid-basis inference for large-scale galaxy clustering: combining spherical and Cartesian Fourier analyses, 2020, [arXiv: 2007.14962]
  • A. de Mattia, (35 co-authors including W.J. Percival), The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the emission line galaxy sample from the anisotropic power spectrum between redshift 0.6 and 1.1, 2020, [arXiv: 2007.09008]
  • A. Raichoor, (39 co-authors including W.J. Percival), The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Large-scale Structure Catalogues and Measurement of the isotropic BAO between redshift 0.6 and 1.1 for the Emission Line Galaxy Sample, 2020, [arXiv: 2007.09007]
  • F.G. Mohammad, (30 co-authors including W.J. Percival), The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Pairwise-Inverse-Probability and Angular Correction for Fibre Collisions in Clustering Measurements, 2020, [arXiv: 2007.09005]
  • A.J. Ross, (55 co-authors including W.J. Percival), The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Large-scale Structure Catalogs for Cosmological Analysis, 2020, [arXiv: 2007.09000]
  • J. Hou, (29 co-authors including W.J. Percival), The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: BAO and RSD measurements from anisotropic clustering analysis of the Quasar Sample in configuration space between redshift 0.8 and 2.2, 2020, [arXiv: 2007.08998]
  • R. Neveux, (23 co-authors including W.J. Percival), The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: BAO and RSD measurements from the anisotropic power spectrum of the Quasar sample between redshift 0.8 and 2.2, 2020, [arXiv: 2007.08999]
  • J.E. Bautista, (32 co-authors including W.J. Percival), The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the luminous red galaxy sample from the anisotropic correlation function between redshifts 0.6 and 1, 2020, [arXiv: 2007.08993]
  • H. Gil-Marin, (39 co-authors including W.J. Percival), The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the luminous red galaxy sample from the anisotropic power spectrum between redshifts 0.6 and 1.0, 2020, [arXiv: 2007.08994]
  • eBOSS collaboration,(99 co-authors including W.J.Percival),The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Cosmological Implications from two Decades of Spectroscopic Surveys at the Apache Point observatory, 2020, [arXiv: 2007.08991]
  • I. Tutusaus, (89 co-authors including W.J. Percival), Euclid: The importance of galaxy clustering and weak lensing cross-correlations within the photometric Euclid survey, 2020, [arXiv: 2005.00055]
  • A. Obuljen, W.J. Percival, N. Dalal, Detection of anisotropic galaxy assembly bias in BOSS DR12, 2020, [arXiv: 2005.07240]
  • F. Leclercq, B. Faure, G. Lavaux, B.D. Wandelt, A.H. Jaffe, A.F. Heavens, W.J. Percival, C. Nous, Perfectly parallel cosmological simulations using spatial comoving Lagrangian acceleration, 2020, A&A 639, A91 [arXiv: 2003.04925]
  • R. Ahumada, (312 co-authors including W.J. Percival), The Sixteenth Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra, 2020, ApJS 249, 3 [arXiv: 2001.11044]
  • S. Nadathur, W.J. Percival, F. Beutler, H. Winther, Testing Low-Redshift Cosmic Acceleration with Large-Scale Structure, 2020, PRL 124, 221301 [arXiv: 2001.11044]
  • Euclid Collaboration, (152 co-authors including W.J. Percival), Euclid preparation: VII. Forecast validation for Euclid cosmological probes, 2019, [arXiv: 1910.09273]
  • Euclid collaboration, (128 co-authors including W.J. Percival), Euclid preparation: V. Predicted yield of redshift 7 < z < 9 quasars from the wide survey, 2019, A&A 631, A85 [arXiv: 1908.04310]
  • A. Obuljen, N. Dalal, W.J. Percival, Anisotropic halo assembly bias and redshift-space distortions, 2019, [arXiv: 1906.11823]
  • P. Carter, F. Beutler, W.J. Percival, J. DeRose, R.H. Wechsler, C. Zhao, The Impact of the Fiducial Cosmology Assumption on BAO Cosmological Parameter Inference, 2019, [arXiv: 1906.03035]
  • S. Nadathur, P.M. Carter, W.J. Percival, H.A. Winther, J. Bautista, Beyond BAO: improving cosmological constraints from BOSS with measurement of the void-galaxy cross-correlation, 2019, [arXiv: 1904.01030]
  • V. de Sainte Agathe, (18 co-authors including W.J. Percival), Baryon acoustic oscillations at z = 2.34 from the correlations of Ly absorption in eBOSS DR14, 2019, [arXiv: 1904.03400]
  • M. Blomqvist, (17 co-authors including W.J. Percival), Baryon acoustic oscillations from the cross-correlation of Ly absorption and quasars in eBOSS DR14, 2019, [arXiv: 1904.03430]
  • E. Castorina, (15 co-authors including W.J. Percival), Redshift-weighted constraints on primordial non-Gaussianity from the clustering of the eBOSS DR14 quasars in Fourier space, 2019, [arXiv: 1904.08859]
  • D.S.Aguado, (234 co-authors including W.J. Percival), The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA Derived Quantities, Data Visualization Tools and Stellar Library, 2018, ApJSS 240, 23 [arXiv: 1812.02759]
  • M.S. Wang, W.J. Percival, S. Avila, R. Crittenden, D. Bianchi, Cosmological Inference from Galaxy-Clustering Power Spectrum: Gaussianization and Covariance Decomposition, 2018, MNRAS 486, 951 [arXiv: 1811.08155]
  • T.M.C. Abbott, (167 co-authors including W.J. Percival), Cosmological Constraints from Multiple Probes in the Dark Energy Survey, 2018, PRL, 122, 171301 [arXiv: 1811.02375]
  • A. Smith, (13 co-authors including W.J. Percival), Correcting for Fibre Assignment Incompleteness in the DESI Bright Galaxy Survey, 2019, MNRAS, 484, 1285 [arXiv: 1809.07355]
  • Lecture series at the Michigan Cosmology Summer School
  • KICC 10th anniversary symposium, Cambridge UK, September 2019, invited review talk "The future of galaxy surveys"
  • Seminars in the last 12 months at: HIA Victoria Canada, Queens Kingston Canada, SFU Vancouver Canada, OSU Ohio USA, Rochester USA, UBC Vancouver Canada, UVic Victoria Canada
  • CFHT Users Meeting, Montreal Canada, April 2019, invited talk "Cosmology with MSE"
  • Testing Gravity 2019, Vancouver Canada, January 2019, invited talk "Testing gravity and making geometrical measurements using voids"
  • "Massively Parallel Large Area Spectroscopy from Space" workshop, Caltech USA, October 2018, invited talk "Cosmological observations"
  • CosKASI (Korea), ICG, NAOC (China) and YITP (Japan) joint workshop, Beijing China, October 2018, invited talk "Modern observational cosmology"
  • Organiser for the meeting ``Wide-Field Astronomy in Canada'', at PI, October 2018.