Publications: Prof Christopher Clarkson

Addis C, Guandalin C, Clarkson C ( 2025 ) . Multipoles of the galaxy bispectrum on a light cone: wide-separation and relativistic corrections . Journal of Cosmology and Astroparticle Physics vol. 2025 , ( 04 )

Kalbouneh B, Santiago J, Marinoni C, Maartens R, Clarkson C, Sarma M ( 2025 ) . Expanding covariant cosmography of the local universe: incorporating the snap and axial symmetry . Journal of Cosmology and Astroparticle Physics vol. 2025 , ( 02 )

Adam J, Maartens R, Larena J, Clarkson C ( 2025 ) . Probing the Cosmological Principle with weak lensing shear . Journal of Cosmology and Astroparticle Physics vol. 2025 , ( 02 )

Zazzera S, Fonseca J, Baker T, Clarkson C ( 2025 ) . Gravitational waves and galaxies cross-correlations: a forecast on GW biases for future detectors . Monthly Notices of the Royal Astronomical Society vol. 537 , ( 2 ) 1912 - 1923 .

Blanco DS, Bonvin C, Clarkson C, Maartens R ( 2024 ) . Using relativistic effects in large-scale structure to constrain astrophysical properties of galaxy populations . Journal of Cosmology and Astroparticle Physics vol. 2024 , ( 12 )

Maartens R, Santiago J, Clarkson C, Kalbouneh B, Marinoni C ( 2024 ) . Covariant cosmography: the observer-dependence of the Hubble parameter . Journal of Cosmology and Astroparticle Physics vol. 2024 , ( 09 )

Paul P, Clarkson C, Maartens R ( 2024 ) . Apparent Parity Violation in the Observed Galaxy Trispectrum . Physical Review Letters vol. 133 , ( 12 )

Jolicoeur S, Guedezounme SL, Maartens R, Paul P, Clarkson C, Camera S ( 2024 ) . Relativistic and wide-angle corrections to galaxy power spectra . Journal of Cosmology and Astroparticle Physics vol. 2024 , ( 08 )

Fonseca J, Zazzera S, Baker T, Clarkson C ( 2024 ) . Erratum: The observed number counts in luminosity distance space . Journal of Cosmology and Astroparticle Physics vol. 2024 , ( 06 )

Adamek J, Clarkson C, Durrer R, Heinesen A, Kunz M, Macpherson HJ ( 2024 ) . Towards Cosmography of the Local Universe . The Open Journal of Astrophysics vol. 7 ,

Zazzera S, Fonseca J, Baker T, Clarkson C ( 2024 ) . Magnification and evolution bias of transient sources: GWs and SNIa . Journal of Cosmology and Astroparticle Physics vol. 2024 , ( 05 )

Karagiannis D, Maartens R, Fonseca J, Camera S, Clarkson C ( 2024 ) . Multi-tracer power spectra and bispectra: formalism . Journal of Cosmology and Astroparticle Physics vol. 2024 , ( 03 )

Fonseca J, Zazzera S, Baker T, Clarkson C ( 2023 ) . The observed number counts in luminosity distance space . Journal of Cosmology and Astroparticle Physics vol. 2023 , ( 08 )

Guandalin C, Piat J, Clarkson C, Maartens R ( 2023 ) . Theoretical Systematics in Testing the Cosmological Principle with the Kinematic Quasar Dipole . The Astrophysical Journal vol. 953 , ( 2 )

Paul P, Clarkson C, Maartens R ( 2023 ) . Wide-angle effects in multi-tracer power spectra with Doppler corrections . Journal of Cosmology and Astroparticle Physics vol. 2023 , ( 04 )

Camarena D, Marra V, Sakr Z, Nesseris S, Da Silva A, Garcia-Bellido J, Fleury P, Lombriser L et al. ( 2023 ) . Euclid: Testing the Copernican principle with next-generation surveys⋆ . Astronomy & Astrophysics vol. 671 ,

Perenon L, Martinelli M, Maartens R, Camera S, Clarkson C ( 2022 ) . Measuring dark energy with expansion and growth . Physics of the Dark Universe vol. 37 ,

Camarena D, Marra V, Sakr Z, Clarkson C ( 2022 ) . A void in the Hubble tension? The end of the line for the Hubble bubble . Classical and Quantum Gravity vol. 39 , ( 18 )

Nesseris S, Sapone D, Martinelli M, Camarena D, Marra V, Sakr Z, Garcia-Bellido J, Martins CJAP et al. ( 2022 ) . Euclid: Forecast constraints on consistency tests of the ΛCDM model⋆ . Astronomy & Astrophysics vol. 660 ,

Maartens R, Fonseca J, Camera S, Jolicoeur S, Viljoen J-A, Clarkson C ( 2021 ) . Magnification and evolution biases in large-scale structure surveys . Journal of Cosmology and Astroparticle Physics vol. 2021 , ( 12 )

Fonseca J, Clarkson C ( 2021 ) . Anti-symmetric clustering signals in the observed power spectrum . Journal of Cosmology and Astroparticle Physics vol. 2021 , ( 12 )

Perenon L, Martinelli M, Ilić S, Maartens R, Lochner M, Clarkson C ( 2021 ) . Multi-tasking the growth of cosmological structures . Physics of the Dark Universe vol. 34 ,

Camarena D, Marra V, Sakr Z, Clarkson C ( 2021 ) . The Copernican principle in light of the latest cosmological data . Monthly Notices of the Royal Astronomical Society vol. 509 , ( 1 ) 1291 - 1302 .

Bengaly CAP, Clarkson C, Kunz M, Maartens R ( 2021 ) . Null tests of the concordance model in the era of Euclid and the SKA . Physics of the Dark Universe vol. 33 ,

Gallagher CS, Clifton T, Clarkson C ( 2021 ) . Multi-Scale Perturbation Theory II: Solutions and Leading-Order Bispectrum in the $Λ$CDM Universe . Journal of Cosmology and Astroparticle Physics vol. 08 , Article 048 ,

Jolicoeur S, Maartens R, De Weerd EM, Umeh O, Clarkson C, Camera S ( 2021 ) . Detecting the relativistic bispectrum in 21cm intensity maps . Journal of Cosmology and Astroparticle Physics vol. 2021 , ( 06 )

Coates L, Adamek J, Bull P, Guandalin C, Clarkson C ( 2021 ) . Observing relativistic features in large-scale structure surveys – II. Doppler magnification in an ensemble of relativistic simulations . Monthly Notices of the Royal Astronomical Society vol. 504 , ( 3 ) 3534 - 3543 .

Maartens R, Jolicoeur S, Umeh O, De Weerd EM, Clarkson C ( 2021 ) . Local primordial non-Gaussianity in the relativistic galaxy bispectrum . Journal of Cosmology and Astroparticle Physics vol. 2021 , ( 04 )

Guandalin C, Adamek J, Bull P, Clarkson C, Abramo LR, Coates L ( 2020 ) . Observing relativistic features in large-scale structure surveys - I. Multipoles of the power spectrum . Monthly Notices of the Royal Astronomical Society vol. 501 , ( 2 ) 2547 - 2561 .

Lepori F, Adamek J, Durrer R, Clarkson C, Coates L ( 2020 ) . Weak-lensing observables in relativistic N-body simulations . Monthly Notices of the Royal Astronomical Society

Bengaly CAP, Clarkson C, Maartens R ( 2020 ) . The Hubble constant tension with next-generation galaxy surveys . Journal of Cosmology and Astroparticle Physics vol. 2020 , ( 05 ) 053 - 053 .

de Weerd EM, Clarkson C, Jolicoeur S, Maartens R, Umeh O ( 2020 ) . Multipoles of the relativistic galaxy bispectrum . Journal of Cosmology and Astroparticle Physics vol. 2020 , ( 05 ) 018 - 018 .

Maartens R, Jolicoeur S, Umeh O, Weerd EMD, Clarkson C, Camera S ( 2020 ) . Detecting the relativistic galaxy bispectrum . Journal of Cosmology and Astroparticle Physics vol. 2020 , ( 03 ) 065 - 065 .

Normann BD, Clarkson C ( 2020 ) . Recursion relations for gravitational lensing . General Relativity and Gravitation vol. 52 , ( 3 ) Article 28 ,

Gallagher CS, Clifton T, Clarkson C ( 2020 ) . Multi-scale perturbation theory. Part I. Methodology and leading-order bispectrum corrections in the matter-dominated era . Journal of Cosmology and Astroparticle Physics vol. 2020 , ( 03 ) 011 - 011 .

Bull P, others ( 2020 ) . Fundamental Physics with the Square Kilometer Array . Publications of the Astronomical Society of Australia

Duniya DGA, Moloi T, Clarkson C, Larena J, Maartens R, Mongwane B, Weltman A ( 2020 ) . Probing beyond-Horndeski gravity on ultra-large scales . Journal of Cosmology and Astroparticle Physics vol. 2020 , ( 01 ) 033 - 033 .

Franco FO, Bonvin C, Clarkson C ( 2019 ) . A null test to probe the scale dependence of the growth of structure as a test of general relativity . Monthly Notices of the Royal Astronomical Society: Letters vol. 492 , ( 1 ) L34 - L39 .

Adamek J, Clarkson C, Coates L, Durrer R, Kunz M ( 2019 ) . Bias and scatter in the Hubble diagram from cosmological large-scale structure . Physical Review D vol. 100 , ( 2 ) Article 021301 ,

Andrianomena S, Bonvin C, Bacon D, Bull P, Clarkson C, Maartens R, Moloi T ( 2019 ) . Testing General Relativity with the Doppler magnification effect . Monthly Notices of the Royal Astronomical Society

Umeh O, Koyama K, Maartens R, Schmidt F, Clarkson C ( 2019 ) . General relativistic effects in the galaxy bias at second order . Journal of Cosmology and Astroparticle Physics vol. 2019 , ( 05 ) 020 - 020 .

Clarkson C, de Weerd EM, Jolicoeur S, Maartens R, Umeh O ( 2019 ) . The dipole of the galaxy bispectrum . Monthly Notices of the Royal Astronomical Society: Letters vol. 486 , ( 1 ) L101 - L104 .

Koksbang SM, Clarkson C ( 2019 ) . Accurately computing weak lensing convergence . Monthly Notices of the Royal Astronomical Society: Letters vol. 486 , ( 1 ) L41 - L45 .

Jolicoeur S, Allahyari A, Clarkson C, Larena J, Umeh O, Maartens R ( 2019 ) . Imprints of local lightcone projection effects on the galaxy bispectrum IV: second-order vector and tensor contributions . Journal of Cosmology and Astroparticle Physics vol. 2019 , ( 03 ) 004 - 004 .

Adamek J, Clarkson C, Daverio D, Durrer R, Kunz M ( 2018 ) . Safely smoothing spacetime: backreaction in relativistic cosmological simulations . Classical and Quantum Gravity vol. 36 , ( 1 )

Witzemann A, Bull P, Clarkson C, Santos MG, Spinelli M, Weltman A ( 2018 ) . Model-independent curvature determination with 21 cm intensity mapping experiments . Mon. Not. Roy. Astron. Soc. vol. 477 , Article 1 , L122 - L127 .

Jolicoeur S, Umeh O, Maartens R, Clarkson C ( 2018 ) . Imprints of local lightcone projection effects on the galaxy bispectrum. Part III. Relativistic corrections from nonlinear dynamical evolution on large-scales . Journal of Cosmology and Astroparticle Physics vol. 2018 , ( 03 ) 036 - 036 .

CLARKSON CA, maartens R, Chen S ( 2018 ) . The kinematic dipole in galaxy redshift surveys . Journal of Cosmology and Astroparticle Physics

CLARKSON CA, Maartens R, Umeh O, Jolicoeur S ( 2017 ) . Imprints of local lightcone projection effects on the galaxy bispectrum. II . Journal of Cosmology and Astroparticle Physics

Bonvin C, Andrianomena S, Bacon D, Clarkson C, Maartens R, Moloi T, Bull P ( 2017 ) . Dipolar modulation in the size of galaxies: The effect of Doppler magnification . Mon. Not. Roy. Astron. Soc. vol. 472 , Article 4 , 3936 - 3951 .

Fleury P, Clarkson C, Maartens R ( 2017 ) . How does the cosmic large-scale structure bias the Hubble diagram? . Journal of Cosmology and Astroparticle Physics vol. 2017 , ( 03 ) 062 - 062 .

Umeh O, Jolicoeur S, Maartens R, Clarkson C ( 2017 ) . A general relativistic signature in the galaxy bispectrum: the local effects of observing on the lightcone . Journal of Cosmology and Astroparticle Physics vol. 2017 , ( 03 ) 034 - 034 .

CLARKSON CA ( 2016 ) . Roulettes: A weak lensing formalism for strong lensing — II. Derivation and analysis — . Classical and Quantum Gravity

CLARKSON CA, Newburgh LB ( 2016 ) . HIRAX: a probe of dark energy and radio transients . Conference: Ground-based and Airborne Telescopes VI

CLARKSON CA ( 2016 ) . Roulettes: a weak lensing formalism for strong lensing - I. Overview . Classical and Quantum Gravity vol. 33 , ( 16 ) Article 16LT01 ,

Raccanelli A, Bertacca D, Maartens R, Clarkson C, Doré O ( 2016 ) . Lensing and time-delay contributions to galaxy correlations . General Relativity and Gravitation vol. 48 , ( 7 )

Busti VC, Clarkson C ( 2016 ) . Dodging the dark matter degeneracy while determining the dynamics of dark energy . Journal of Cosmology and Astroparticle Physics vol. 2016 , ( 05 ) 008 - 008 .

Clarkson C ( 2015 ) . The general theory of secondary weak gravitational lensing . Journal of Cosmology and Astroparticle Physics vol. 2015 , ( 09 ) 033 - 033 .

Marozzi G, Uzan J-P, Umeh O, Clarkson C ( 2015 ) . Cosmological evolution of the gravitational entropy of the large-scale structure . General Relativity and Gravitation vol. 47 , ( 10 )

Bonvin C, Clarkson C, Durrer R, Maartens R, Umeh O ( 2015 ) . Cosmological ensemble and directional averages of observables . Journal of Cosmology and Astroparticle Physics vol. 2015 , ( 07 ) 040 - 040 .

Busti VC, Clarkson C, Seikel M ( 2015 ) . The Value of H0 from Gaussian Processes . Proceedings of the International Astronomical Union vol. 10 , ( S306 ) 25 - 27 .

Bonvin C, Clarkson C, Durrer R, Maartens R, Umeh O ( 2015 ) . Do we care about the distance to the CMB? Clarifying the impact of second-order lensing . Journal of Cosmology and Astroparticle Physics vol. 2015 , ( 06 ) 050 - 050 .

Schwarz DJ, Bacon DJ, Chen S, Clarkson C, Huterer D, Kunz M, Maartens R, Raccanelli A et al. ( 2015 ) . Testing foundations of modern cosmology with SKA all-sky surveys . Conference: Proceedings of Advancing Astrophysics with the Square Kilometre Array — PoS(AASKA14)

Adamek J, Clarkson C, Durrer R, Kunz M ( 2015 ) . Does Small Scale Structure Significantly Affect Cosmological Dynamics? . Physical Review Letters vol. 114 , ( 5 )

Clarkson C, Umeh O, Maartens R, Durrer R ( 2014 ) . What is the distance to the CMB? . Journal of Cosmology and Astroparticle Physics vol. 2014 , ( 11 ) 036 - 036 .

Bertacca D, Maartens R, Clarkson C ( 2014 ) . Observed galaxy number counts on the lightcone up to second order: II. Derivation . Journal of Cosmology and Astroparticle Physics vol. 2014 , ( 11 ) 013 - 013 .

Umeh O, Clarkson C, Maartens R ( 2014 ) . Nonlinear relativistic corrections to cosmological distances, redshift and gravitational lensing magnification: I. Key results . Classical and Quantum Gravity vol. 31 , ( 20 )

Umeh O, Clarkson C, Maartens R ( 2014 ) . Nonlinear relativistic corrections to cosmological distances, redshift and gravitational lensing magnification: II. Derivation . Classical and Quantum Gravity vol. 31 , ( 20 )

Bertacca D, Maartens R, Clarkson C ( 2014 ) . Observed galaxy number counts on the lightcone up to second order: I. Main result . Journal of Cosmology and Astroparticle Physics vol. 2014 , ( 09 ) 037 - 037 .

Clarkson C, Clifton T, Coley A, Sung R ( 2014 ) . Publisher’s Note: Observational constraints on the averaged universe [Phys. Rev. D 85, 043506 (2012)] . Physical Review D vol. 90 , ( 4 )

February S, Larena J, Clarkson C, Pollney D ( 2014 ) . Evolution of linear perturbations in spherically symmetric dust spacetimes . Classical and Quantum Gravity vol. 31 , ( 17 )

Bacon DJ, Andrianomena S, Clarkson C, Bolejko K, Maartens R ( 2014 ) . Cosmology with Doppler lensing . Monthly Notices of the Royal Astronomical Society vol. 443 , ( 3 ) 1900 - 1915 .

Andrianomena S, Clarkson C, Patel P, Umeh O, Uzan J-P ( 2014 ) . Non-linear relativistic contributions to the cosmological weak-lensing convergence . Journal of Cosmology and Astroparticle Physics vol. 2014 , ( 06 ) 023 - 023 .

Busti VC, Clarkson C, Seikel M ( 2014 ) . Evidence for a lower value for H0 from cosmic chronometers data? . Monthly Notices of the Royal Astronomical Society: Letters vol. 441 , ( 1 ) l11 - l15 .

Yahya S, Seikel M, Clarkson C, Maartens R, Smith M ( 2014 ) . Null tests of the cosmological constant using supernovae . Physical Review D vol. 89 , ( 2 )

Smith M, Bacon DJ, Nichol RC, Campbell H, Clarkson C, Maartens R, D'Andrea CB, Bassett BA et al. ( 2013 ) . THE EFFECT OF WEAK LENSING ON DISTANCE ESTIMATES FROM SUPERNOVAE . The Astrophysical Journal vol. 780 , ( 1 )

Valkenburg W, Marra V, Clarkson C ( 2013 ) . Testing the Copernican principle by constraining spatial homogeneity . Monthly Notices of the Royal Astronomical Society: Letters vol. 438 , ( 1 ) l6 - l10 .

Busti VC, Holanda RFL, Clarkson C ( 2013 ) . Supernovae as probes of cosmic parameters: estimating the bias from under-dense lines of sight . Journal of Cosmology and Astroparticle Physics vol. 2013 , ( 11 ) 020 - 020 .

Lim WC, Regis M, Clarkson C ( 2013 ) . Spherically symmetric cosmological spacetimes with dust and radiation — numerical implementation . Journal of Cosmology and Astroparticle Physics vol. 2013 , ( 10 ) 010 - 010 .

February S, Clarkson C, Maartens R ( 2013 ) . Galaxy correlations and the BAO in a void universe: structure formation as a test of the Copernican Principle . Journal of Cosmology and Astroparticle Physics vol. 2013 , ( 03 ) 023 - 023 .

Clarkson C ( 2013 ) . Trouble with physics: Time to ditch Copernicus? . The New Scientist vol. 217 , ( 2906 )

Bolejko K, Clarkson C, Maartens R, Bacon D, Meures N, Beynon E ( 2013 ) . Antilensing: The Bright Side of Voids . Physical Review Letters vol. 110 , ( 2 )

Hoyle B, Tojeiro R, Jimenez R, Heavens A, Clarkson C, Maartens R ( 2012 ) . TESTING HOMOGENEITY WITH GALAXY STAR FORMATION HISTORIES . The Astrophysical Journal Letters vol. 762 , ( 1 )

Bertacca D, Maartens R, Raccanelli A, Clarkson C ( 2012 ) . Beyond the plane-parallel and Newtonian approach: wide-angle redshift distortions and convergence in general relativity . Journal of Cosmology and Astroparticle Physics vol. 2012 , ( 10 ) 025 - 025 .

Seikel M, Yahya S, Maartens R, Clarkson C ( 2012 ) . Using H(z) data as a probe of the concordance model . Physical Review D vol. 86 , ( 8 )

Clarkson C, Ellis GFR, Faltenbacher A, Maartens R, Umeh O, Uzan J-P ( 2012 ) . (Mis)interpreting supernovae observations in a lumpy universe . Monthly Notices of the Royal Astronomical Society vol. 426 , ( 2 ) 1121 - 1136 .

Clifton T, Clarkson C, Bull P ( 2012 ) . Isotropic Blackbody Cosmic Microwave Background Radiation as Evidence for a Homogeneous Universe . Physical Review Letters vol. 109 , ( 5 )

February S, Clarkson C, Maartens R ( 2012 ) . Baryon acoustic oscillations in a cosmic void . AIP Conference Proceedings . vol. 1458 , 387 - 390 .

Clarkson C ( 2012 ) . Establishing homogeneity of the universe in the shadow of dark energy . Comptes Rendus Physique vol. 13 , ( 6-7 ) 682 - 718 .

Seikel M, Clarkson C, Smith M ( 2012 ) . Reconstruction of dark energy and expansion dynamics using Gaussian processes . Journal of Cosmology and Astroparticle Physics vol. 2012 , ( 06 ) 036 - 036 .

CLARKSON C ( 2011 ) . DETERMINING DARK ENERGY . Conference: Physics Beyond the Standard Models of Particles, Cosmology and Astrophysics455 - 470 .

Clarkson C, Osano B ( 2012 ) . Locally extracting scalar, vector and tensor modes in cosmological perturbation theory . Classical and Quantum Gravity vol. 29 , ( 7 )

Clarkson C, Clifton T, Coley A, Sung R ( 2012 ) . Observational constraints on the averaged universe . Physical Review D vol. 85 , ( 4 )

Regis M, Clarkson C ( 2012 ) . Do primordial lithium abundances imply there’s no dark energy? . General Relativity and Gravitation vol. 44 , ( 3 ) 567 - 579 .

CLARKSON C, MAARTENS R ( 2012 ) . GRAVITY-WAVE DETECTORS AS PROBES OF EXTRA DIMENSIONS . International Journal of Modern Physics D vol. 14 , ( 12 ) 2347 - 2353 .

Clarkson C, Ellis G, Larena J, Umeh O ( 2011 ) . Does the growth of structure affect our dynamical models of the Universe? The averaging, backreaction, and fitting problems in cosmology . Reports on Progress in Physics vol. 74 , ( 11 )

Clarkson C, Osano B ( 2011 ) . Locally extracting scalar, vector and tensor modes in cosmological perturbation theory . Classical and Quantum Gravity vol. 28 , ( 22 )

Clarkson C, Umeh O ( 2011 ) . Is backreaction really small within concordance cosmology? . Classical and Quantum Gravity vol. 28 , ( 16 )

Umeh O, Larena J, Clarkson C ( 2011 ) . The Hubble rate in averaged cosmology . Journal of Cosmology and Astroparticle Physics vol. 2011 , ( 03 ) 029 - 029 .

Clarkson C, Regis M ( 2011 ) . The cosmic microwave background in an inhomogeneous universe . Journal of Cosmology and Astroparticle Physics vol. 2011 , ( 02 ) 013 - 013 .

Clarkson C, Alimi J-M, Fuözfa A ( 2010 ) . On the determination of dark energy . AIP Conference Proceedings . vol. 1241 , 784 - 796 .

Clarkson C, Zunckel C ( 2010 ) . Direct Reconstruction of Dark Energy . Physical Review Letters vol. 104 , ( 21 )

Clarkson C, Maartens R ( 2010 ) . Inhomogeneity and the foundations of concordance cosmology . Classical and Quantum Gravity vol. 27 , ( 12 )

February S, Larena J, Smith M, Clarkson C ( 2010 ) . Rendering dark energy void . Monthly Notices of the Royal Astronomical Society vol. 405 , ( 4 ) 2231 - 2242 .

Shafieloo A, Clarkson C ( 2010 ) . Model independent tests of the standard cosmological model . Physical Review D vol. 81 , ( 8 )

Seahra SS, Clarkson C ( 2009 ) . Gravitational waves in the black string braneworld . Classical and Quantum Gravity vol. 26 , ( 24 )

Clarkson C, Ananda K, Larena J ( 2009 ) . Influence of structure formation on the cosmic expansion . Physical Review D vol. 80 , ( 8 )

Clarkson C, Clifton T, February S ( 2009 ) . Perturbation theory in Lemaȋtre-Tolman-Bondi cosmology . Journal of Cosmology and Astroparticle Physics vol. 2009 , ( 06 ) 025 - 025 .

Lu TH-C, Ananda K, Clarkson C, Maartens R ( 2009 ) . The cosmological background of vector modes . Journal of Cosmology and Astroparticle Physics vol. 2009 , ( 02 ) 023 - 023 .

Mörtsell E, Clarkson C ( 2009 ) . Model independent constraints on the cosmological expansion rate . Journal of Cosmology and Astroparticle Physics vol. 2009 , ( 01 ) 044 - 044 .

Zunckel C, Clarkson C ( 2008 ) . Consistency Tests for the Cosmological Constant . Physical Review Letters vol. 101 , ( 18 )

Clarkson C, Bassett B, Lu TH-C ( 2008 ) . A General Test of the Copernican Principle . Physical Review Letters vol. 101 , ( 1 )

Uzan J-P, Clarkson C, Ellis GFR ( 2008 ) . Time Drift of Cosmological Redshifts as a Test of the Copernican Principle . Physical Review Letters vol. 100 , ( 19 )

Lu TH-C, Ananda K, Clarkson C ( 2008 ) . Vector modes generated by primordial density fluctuations . Physical Review D vol. 77 , ( 4 )

Hlozek R, Cortês M, Clarkson C, Bassett B ( 2008 ) . Dark energy degeneracies in the background dynamics . General Relativity and Gravitation vol. 40 , ( 2-3 ) 285 - 300 .

Clarkson C, Marklund M ( 2008 ) . Photon gas dynamics in the early universe . Physics Letters B vol. 659 , ( 1-2 ) 54 - 57 .

Clarkson C ( 2007 ) . Covariant approach for perturbations of rotationally symmetric spacetimes . Physical Review D vol. 76 , ( 10 )

Clarkson C, Cortês M, Bassett B ( 2007 ) . Dynamical dark energy or simply cosmic curvature? . Journal of Cosmology and Astroparticle Physics vol. 2007 , ( 08 ) 011 - 011 .

Ananda KN, Clarkson C, Wands D ( 2007 ) . Cosmological gravitational wave background from primordial density perturbations . Physical Review D vol. 75 , ( 12 )

Clarkson C, Seahra SS ( 2007 ) . A gravitational wave window on extra dimensions . Classical and Quantum Gravity vol. 24 , ( 9 )

Osano B, Pitrou C, Dunsby P, Uzan J-P, Clarkson C ( 2007 ) . Gravitational waves generated by second order effects during inflation . Journal of Cosmology and Astroparticle Physics vol. 2007 , ( 04 ) 003 - 003 .

Clarkson C, Maartens R ( 2005 ) . Gravity-wave detectors as probes of extra dimensions . General Relativity and Gravitation vol. 37 , ( 10 ) 1681 - 1687 .

Clarkson C, Seahra SS ( 2005 ) . Braneworld resonances . Classical and Quantum Gravity vol. 22 , ( 17 )

Seahra SS, Clarkson C, Maartens R ( 2005 ) . Delocalization of brane gravity by a bulk black hole . Classical and Quantum Gravity vol. 22 , ( 16 )

Marklund M, Clarkson CA ( 2005 ) . The general relativistic magnetohydrodynamic dynamo equation . Monthly Notices of the Royal Astronomical Society vol. 358 , ( 3 ) 892 - 900 .

Seahra SS, Clarkson C, Maartens R ( 2005 ) . Detecting Extra Dimensions with Gravity-Wave Spectroscopy: The Black-String Brane World . Physical Review Letters vol. 94 , ( 12 )

Clarkson C ( 2004 ) . Publisher's Note: Cosmological density fluctuations and gravity waves: A covariant approach to gauge-invariant nonlinear perturbation theory [Phys. Rev. D 70, 103524 (2004)] . Physical Review D vol. 70 , ( 12 )

Clarkson C ( 2004 ) . Cosmological density fluctuations and gravity waves: A covariant approach to gauge-invariant nonlinear perturbation theory . Physical Review D vol. 70 , ( 10 )

Betschart G, Clarkson CA ( 2004 ) . Scalar field and electromagnetic perturbations on locally rotationally symmetric spacetimes . Classical and Quantum Gravity vol. 21 , ( 23 )

Clarkson CA, Marklund M, Betschart G, Dunsby PKS ( 2004 ) . The Electromagnetic Signature of Black Hole Ring-Down . The Astrophysical Journal vol. 613 , ( 1 ) 492 - 505 .

Clarkson CA, Barrett RK ( 2003 ) . Covariant perturbations of Schwarzschild black holes . Classical and Quantum Gravity vol. 20 , ( 18 )

Clarkson CA, Coley AA, O'Neill ESD, Sussman RA, Barrett RK ( 2003 ) . Inhomogeneous Cosmologies, the Copernican Principle and the Cosmic Microwave Background: More on the EGS Theorem . General Relativity and Gravitation vol. 35 , ( 6 ) 969 - 990 .

Clarkson CA, Coley AA, Maartens R, Tsagas CG ( 2003 ) . CMB limits on large-scale magnetic fields in an inhomogeneous universe . Classical and Quantum Gravity vol. 20 , ( 8 )

Ibáñez J, Clarkson CA, Coley AA ( 2003 ) . Reply to Comment on 'On scaling solutions with a dissipative fluid' . Classical and Quantum Gravity vol. 20 , ( 5 )

Ib??ez J, Clarkson CA, Coley AA ( 2002 ) . On scaling solutions with a dissipative fluid . Classical and Quantum Gravity vol. 19 , ( 11 )

Clarkson CA, Coley AA, Quinlan SD ( 2001 ) . Qualitative properties of magnetic fields in scalar field cosmology . Physical Review D vol. 64 , ( 12 )

Clarkson CA, Coley AA, O’Neill ESD ( 2001 ) . Cosmic microwave background and scalar-tensor theories of gravity . Physical Review D vol. 64 , ( 6 )

Clarkson CA, Coley AA ( 2001 ) . Magnetic fields and the cosmic microwave background . Classical and Quantum Gravity vol. 18 , ( 7 )

Barrett RK, Clarkson CA ( 2000 ) . Undermining the cosmological principle: almost isotropic observations in inhomogeneous cosmologies . Classical and Quantum Gravity vol. 17 , ( 24 )

Clarkson CA, Barrett RK ( 1999 ) . Does the isotropy of the CMB imply a homogeneous universe? Some generalized EGS theorems . Classical and Quantum Gravity vol. 16 , ( 12 )