Publications (136)
Optimising Baryon Acoustic Oscillation Surveys - I: Testing the concordance LCDM cosmology
David Parkinson, Chris Blake, Martin Kunz +3
We optimize the design of future spectroscopic redshift surveys for constraining the dark energy via precision measurements of the baryon acoustic oscillations (BAO), with particul…
Scaling Relations of Star-Forming Regions: from kpc-size clumps to HII regions
Emily Wisnioski, Karl Glazebrook, Chris Blake +4
We present the properties of 8 star-forming regions, or 'clumps,' in 3 galaxies at z~1.3 from the WiggleZ Dark Energy Survey, which are resolved with the OSIRIS integral field spec…
Cosmological Constraints from Full-Scale Clustering and Galaxy-Galaxy Lensing with DESI DR1
Johannes U. Lange, Alexandra Wells, Andrew Hearin +76
We present constraints on cosmic structure growth from the analysis of galaxy clustering and galaxy-galaxy lensing with galaxies from the Dark Energy Spectroscopic Instrument (DESI…
The WiggleZ Dark Energy Survey: small-scale clustering of Lyman Break Galaxies at z < 1
Chris Blake, Russell Jurek, Sarah Brough +15
The WiggleZ Dark Energy Survey is a large-scale structure survey of intermediate-redshift UV-selected emission-line galaxies scheduled to cover 1000 sq deg, spanning a broad redshi…
Cosmology with photometric redshift surveys
Chris Blake, Sarah Bridle
We explore the utility of future photometric redshift imaging surveys for delineating the large-scale structure of the Universe, and assess the resulting constraints on the cosmolo…
Clumpology of Starbursts in the WiggleZ Dark Energy Survey
Emily Wisnioski, Karl Glazebrook, Chris Blake +1
We have observed Halpha emission from a sample of 13 star-forming galaxies from the WiggleZ Dark Energy Survey in the redshift range z~1.2-1.5 and stellar mass range 9.8<log(M_*/M_…
The WiggleZ Dark Energy Survey: Joint measurements of the expansion and growth history at z < 1
Chris Blake, Sarah Brough, Matthew Colless +23
We perform a joint determination of the distance-redshift relation and cosmic expansion rate at redshifts z = 0.44, 0.6 and 0.73 by combining measurements of the baryon acoustic pe…
Compressing combined probes: redshift weights for joint lensing and clustering analyses
Rossana Ruggeri, Chris Blake
Combining different observational probes, such as galaxy clustering and weak lensing, is a promising technique for unveiling the physics of the Universe with upcoming dark energy e…
A plectic Taniyama group
Chris Blake
We revisit Langlands' construction of the Taniyama group to define a plectic Taniyama group for any totally real field F. The construction is functorial in F and recovers Langlands…
The 6dF Galaxy Survey: z \approx 0 measurement of the growth rate and sigma_8
Florian Beutler, Chris Blake, Matthew Colless +7
We present a detailed analysis of redshift-space distortions in the two-point correlation function of the 6dF Galaxy Survey (6dFGS). The K-band selected sub-sample which we employ…
Simultaneous constraints on the number and mass of relativistic species
Signe Riemer-Sorensen, David Parkinson, Tamara Davis +1
Recent indications from both particle physics and cosmology suggest the existence of more than three neutrino species. In cosmological analyses the effects of neutrino mass and num…
The environmental dependence of the baryon acoustic peak in the Baryon Oscillation Spectroscopic Survey CMASS sample
Chris Blake, Ixandra Achitouv, Angela Burden +1
The environmental dependence of galaxy clustering encodes information about the physical processes governing the growth of cosmic structure. We analyze the baryon acoustic peak as…
Testing Dark Energy with the Advanced Liquid-Mirror Probe of Asteroids, Cosmology and Astrophysics
Pier Stefano Corasaniti, Marilena LoVerde, Arlin Crotts +1
The Advanced Liquid-Mirror Probe of Asteroids, Cosmology and Astrophysics (ALPACA) is a proposed 8-meter liquid mirror telescope surveying 1000 square degree of the southern-hemisp…
Low Redshift Baryon Acoustic Oscillation Measurement from the Reconstructed 6-degree Field Galaxy Survey
Paul Carter, Florian Beutler, Will J. Percival +3
Low redshift measurements of Baryon Acoustic Oscillations (BAO) test the late time evolution of the Universe and are a vital probe of Dark Energy. Over the past decade both the 6-d…
Measuring redshift-space distortions with future SKA surveys
Alvise Raccanelli, Philip Bull, Stefano Camera +8
The peculiar motion of galaxies can be a particularly sensitive probe of gravitational collapse. As such, it can be used to measure the dynamics of dark matter and dark energy as w…
Foreground Subtraction in Intensity Mapping with the SKA
Laura Wolz, Filipe B. Abdalla, David Alonso +7
21cm intensity mapping experiments aim to observe the diffuse neutral hydrogen (HI) distribution on large scales which traces the Cosmic structure. The Square Kilometre Array (SKA)…
The Stellar Masses of ~40,000 UV Selected Galaxies from the WiggleZ Survey at 0.3<z<1.0: Analogues of Lyman Break Galaxies?
Manda Banerji, Karl Glazebrook, Chris Blake +24
We characterise the stellar masses and star formation rates in a sample of almost 40000 spectroscopically confirmed UV luminous galaxies at 0.3<z<1.0 selected from within the Wiggl…
The WiggleZ Dark Energy Survey: measuring the cosmic growth rate with the two-point galaxy correlation function
Carlos Contreras, Chris Blake, Gregory B. Poole +24
The growth history of large-scale structure in the Universe is a powerful probe of the cosmological model, including the nature of dark energy. We study the growth rate of cosmic s…
The Subaru FMOS galaxy redshift survey (FastSound). IV. New constraint on gravity theory from redshift space distortions at
Teppei Okumura, Chiaki Hikage, Tomonori Totani +22
We measure the redshift-space correlation function from a spectroscopic sample of 2783 emission line galaxies from the FastSound survey. The survey, which uses the Subaru Telescope…
Quantifying angular clustering in wide-area radio surveys
Chris Blake, Jasper Wall
We quantify the angular clustering of radio galaxies in the NVSS and FIRST radio surveys using the two-point correlation function and the moments of counts-in-cells - both importan…
First test of Verlinde's theory of Emergent Gravity using Weak Gravitational Lensing measurements
Margot M. Brouwer, Manus R. Visser, Andrej Dvornik +19
Verlinde (2016) proposed that the observed excess gravity in galaxies and clusters is the consequence of Emergent Gravity (EG). In this theory the standard gravitational laws are m…
Determining accurate measurements of the growth rate from the galaxy correlation function in simulations
Carlos Contreras, Chris Blake, Gregory B. Poole +1
We use high-resolution N-body simulations to develop a new, flexible, empirical approach for measuring the growth rate from redshift-space distortions (RSD) in the 2-point galaxy c…
The WiggleZ project: AAOmega and Dark Energy
Karl Glazebrook, Chris Blake, Warrick Couch +16
We describe the `WiggleZ' spectroscopic survey of 280,000 star-forming galaxies selected from a combination of GALEX ultra-violet and SDSS + RCS2 optical imaging. The fundamental g…
The DESI Experiment Part II: Instrument Design
DESI Collaboration, Amir Aghamousa, Jessica Aguilar +290
DESI (Dark Energy Spectropic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations and the growth of structure through redshift…
Consistency of the growth rate in different environments with the 6dF Galaxy Survey: measurement of the void-galaxy and galaxy-galaxy correlation functions
Ixandra Achitouv, Chris Blake, Paul Carter +2
We present a new test of gravitational physics by comparing the growth rate of cosmic structure measured around voids with that measured around galaxies in the same large-scale str…
The Oxford-Dartmouth Thirty Degree Survey I: Observations and Calibration of a Wide-Field Multi-Band Survey
Emily C. MacDonald, Paul Allen, Gavin Dalton +13
The Oxford Dartmouth Thirty Degree Survey (ODTS) is a deep, wide, multi-band imaging survey designed to cover a total of 30 square degrees in BVRi'Z, with a subset of U and K band…
The WiggleZ Dark Energy Survey: Star-formation in UV-luminous galaxies from their luminosity functions
Russell J. Jurek, Michael J. Drinkwater, Kevin Pimbblet +23
We present the ultraviolet (UV) luminosity function of galaxies from the GALEX Medium Imaging Survey with measured spectroscopic redshifts from the first data release of the Wiggle…
CFHTLenS revisited: assessing concordance with Planck including astrophysical systematics
Shahab Joudaki, Chris Blake, Catherine Heymans +9
We investigate the impact of astrophysical systematics on cosmic shear cosmological parameter constraints from the Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS), and the…
A local measurement of the growth rate from peculiar velocities and galaxy clustering correlations in the 6dF Galaxy Survey
Ryan J. Turner, Chris Blake, Rossana Ruggeri
Galaxy peculiar velocities provide an integral source of cosmological information that can be harnessed to measure the growth rate of large scale structure and constrain possible e…
Fast and accurate mock catalogue generation for low-mass galaxies
Jun Koda, Chris Blake, Florian Beutler +2
We present an accurate and fast framework for generating mock catalogues including low-mass halos, based on an implementation of the COmoving Lagrangian Acceleration (COLA) techniq…
Redshift evolution and covariances for joint lensing and clustering studies with DESI Y1
Sihan Yuan, Chris Blake, Alex Krolewski +48
Galaxy-galaxy lensing (GGL) and clustering measurements from the Dark Energy Spectroscopic Instrument Year 1 (DESI Y1) dataset promise to yield unprecedented combined-probe tests o…
Forecasts for Dark Energy Measurements with Future HI Surveys
Filipe B. Abdalla, Chris Blake, Steve Rawlings
We use two independent methods to forecast the dark energy measurements achievable by combining future galaxy redshift surveys based on the radio HI emission line with Cosmic Micro…
Power spectrum multipole expansion for HI intensity mapping experiments: unbiased parameter estimation
Paula S. Soares, Steven Cunnington, Alkistis Pourtsidou +1
We assess the performance of the multipole expansion formalism in the case of single-dish HI intensity mapping, including instrumental and foreground removal effects. This formalis…
Galaxy And Mass Assembly (GAMA): improved cosmic growth measurements using multiple tracers of large-scale structure
Chris Blake, Ivan K. Baldry, Joss Bland-Hawthorn +11
We present the first application of a "multiple-tracer" redshift-space distortion (RSD) analysis to an observational galaxy sample, using data from the Galaxy and Mass Assembly sur…
On the correlations of galaxy peculiar velocities and their covariance
Chris Blake, Ryan J. Turner
Measurements of the peculiar velocities of large samples of galaxies enable new tests of the standard cosmological model, including determination of the growth rate of cosmic struc…
Joint Efficient Dark-energy Investigation (JEDI): a Candidate Implementation of the NASA-DOE Joint Dark Energy Mission (JDEM)
Arlin Crotts, Peter Garnavich, William Priedhorsky +15
JEDI will probe dark energy in three independent ways by measuring the expansion history of the universe: (1) using type Ia supernovae as cosmological standard candles over a range…
Gravitational Lensing Analysis of the Kilo Degree Survey
Konrad Kuijken, Catherine Heymans, Hendrik Hildebrandt +32
The Kilo-Degree Survey (KiDS) is a multi-band imaging survey designed for cosmological studies from weak lensing and photometric redshifts. It uses the ESO VLT Survey Telescope wit…
Testing gravity using galaxy-galaxy lensing and clustering amplitudes in KiDS-1000, BOSS and 2dFLenS
Chris Blake, Alexandra Amon, Marika Asgari +18
The physics of gravity on cosmological scales affects both the rate of assembly of large-scale structure, and the gravitational lensing of background light through this cosmic web.…
Impact of inhomogeneous curvature on growth rate measurements from magnitude fluctuations
Andrew Nguyen, Chris Blake, Hayley J. Macpherson
Our interpretation of current cosmological observations rests on the assumptions of homogeneity and isotropy, leading to uniform background curvature and expansion characterised by…
Improving constraints on the growth rate of structure by modelling the density-velocity cross-correlation in the 6dF Galaxy Survey
Caitlin Adams, Chris Blake
We present the first simultaneous analysis of the galaxy overdensity and peculiar velocity fields by modelling their cross-covariance. We apply our new maximum-likelihood approach…
The 2-degree Field Lensing Survey: design and clustering measurements
Chris Blake, Alexandra Amon, Michael Childress +16
We present the 2-degree Field Lensing Survey (2dFLenS), a new galaxy redshift survey performed at the Anglo-Australian Telescope. 2dFLenS is the first wide-area spectroscopic surve…
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 velocity dipole in the radio galaxies of the NRAO VLA Sky Survey
Chris Blake, Jasper Wall
We are in motion against the cosmic backdrop. This motion is evidenced by the systematic temperature shift - or dipole anisotropy - observed in the Cosmic Microwave Background radi…
The Taipan Galaxy Survey: Scientific Goals and Observing Strategy
Elisabete da Cunha, Andrew M. Hopkins, Matthew Colless +37
Taipan is a multi-object spectroscopic galaxy survey starting in 2017 that will cover 2pi steradians over the southern sky, and obtain optical spectra for about two million galaxie…
Cosmology with shear ratios: a joint study of weak lensing and spectroscopic redshift datasets
Ni Emas, Chris Blake, Rossana Ruggeri +1
The ratio of the average tangential shear signal of different weak lensing source populations around the same lens galaxies, also known as a shear ratio, provides an important test…
The 2dF Galaxy Redshift Survey: the local E+A galaxy population
Chris Blake, Michael Pracy, Warrick Couch +27
We select a sample of low-redshift (z ~ 0.1) E+A galaxies from the 2dF Galaxy Redshift Survey (2dFGRS). The spectra of these objects are defined by strong hydrogen Balmer absorptio…
KiDS-1000 Cosmology: Multi-probe weak gravitational lensing and spectroscopic galaxy clustering constraints
Catherine Heymans, Tilman Tröster, Marika Asgari +31
We present a joint cosmological analysis of weak gravitational lensing observations from the Kilo-Degree Survey (KiDS-1000), with redshift-space galaxy clustering observations from…
The WiggleZ Dark Energy Survey: Cosmological neutrino mass constraint from blue high-redshift galaxies
Signe Riemer-Sørensen, Chris Blake, David Parkinson +25
The absolute neutrino mass scale is currently unknown, but can be constrained from cosmology. The WiggleZ high redshift star-forming blue galaxy sample is less sensitive to systema…
Searching for Modified Gravity: Scale and Redshift Dependent Constraints from Galaxy Peculiar Velocities
Andrew Johnson, Chris Blake, Jason Dossett +3
We present measurements of both scale- and time-dependent deviations from the standard gravitational field equations. These late-time modifications are introduced separately for re…
Galaxy and Mass Assembly (GAMA): Redshift Space Distortions from the Clipped Galaxy Field
Fergus Simpson, Chris Blake, John A. Peacock +6
We present the first cosmological measurement derived from a galaxy density field subject to a `clipping' transformation. By enforcing an upper bound on the galaxy number density f…
Are peculiar velocity surveys competitive as a cosmological probe?
Jun Koda, Chris Blake, Tamara Davis +6
Peculiar velocity surveys, which measure galaxy peculiar velocities directly from standard candles in addition to redshifts, can provide strong constraints on the linear growth rat…
Measurement of the angular correlation function of radio galaxies from the NRAO VLA Sky Survey
Chris Blake, Jasper Wall
We quantify the angular distribution of radio sources in the NVSS by measuring the two-point angular correlation function. By careful consideration of the resolution of radio galax…
How accurately can we measure the baryon acoustic oscillation feature?
Rossana Ruggeri, Chris Blake
Baryon acoustic oscillations (BAO) represent one of the cleanest probes of dark energy, allowing for tests of the cosmological model through the measurement of distance and expansi…
Cosmological baryonic and matter densities from 600,000 SDSS Luminous Red Galaxies with photometric redshifts
Chris Blake, Adrian Collister, Sarah Bridle +1
We analyze MegaZ-LRG, a photometric-redshift catalogue of Luminous Red Galaxies (LRGs) based on the imaging data of the Sloan Digital Sky Survey (SDSS) 4th Data Release. MegaZ-LRG,…
A Deuring criterion for abelian varieties
Chris Blake
We give several generalisations of the Deuring reduction criterion for elliptic curves to abelian varieties of higher dimension. In particular the Newton polygon of the reduction o…
Forecasting neutrino masses from galaxy clustering in the Dark Energy Survey combined with the Planck Measurements
Ofer Lahav, Angeliki Kiakotou, Filipe B. Abdalla +1
We study the prospects for detecting neutrino masses from the galaxy angular power spectrum in photometric redshift shells of the Dark Energy Survey (DES) over a volume of 20 (Gpc/…
KiDS+GAMA: Cosmology constraints from a joint analysis of cosmic shear, galaxy-galaxy lensing and angular clustering
Edo van Uitert, Benjamin Joachimi, Shahab Joudaki +19
We present cosmological parameter constraints from a joint analysis of three cosmological probes: the tomographic cosmic shear signal in 450 deg of data from the Kilo Deg…
Measuring the cosmic evolution of dark energy with baryonic oscillations in the galaxy power spectrum
Karl Glazebrook, Chris Blake
We use Monte Carlo techniques to simulate the ability of future large high-redshift galaxy surveys to measure the temporal evolution of the dark energy equation-of-state w(z), usin…
Measuring the 2D Baryon Acoustic Oscillation signal of galaxies in WiggleZ: Cosmological constraints
Samuel R. Hinton, Eyal Kazin, Tamara M. Davis +12
We present results from the 2D anisotropic Baryon Acoustic Oscillation (BAO) signal present in the final dataset from the WiggleZ Dark Energy Survey. We analyse the WiggleZ data in…
Using the topology of large-scale structure in the WiggleZ Dark Energy Survey as a cosmological standard ruler
Chris Blake, J. Berian James, Gregory B. Poole
We present new and accurate measurements of the cosmic distance-redshift relation, spanning 0.2 < z < 1, using the topology of large-scale structure as a cosmological standard rule…
KiDS-1000 catalogue: Weak gravitational lensing shear measurements
Benjamin Giblin, Catherine Heymans, Marika Asgari +19
We present weak lensing shear catalogues from the fourth data release of the Kilo-Degree Survey, KiDS-1000, spanning 1006 square degrees of deep and high-resolution imaging. Our `g…
Cosmology from large-scale structure: Constraining CDM with BOSS
Tilman Tröster, Ariel. G. Sánchez, Marika Asgari +9
We reanalyse the anisotropic galaxy clustering measurement from the Baryon Oscillation Spectroscopic Survey (BOSS), demonstrating that using the full shape information provides cos…
The WiggleZ Dark Energy Survey: Direct constraints on blue galaxy intrinsic alignments at intermediate redshifts
Rachel Mandelbaum, Chris Blake, Sarah Bridle +21
Correlations between the intrinsic shapes of galaxy pairs, and between the intrinsic shapes of galaxies and the large-scale density field, may be induced by tidal fields. These cor…
Quantifying the accuracy of the Alcock-Paczynski scaling of baryon acoustic oscillation measurements
Asta Heinesen, Chris Blake, David L. Wiltshire
We investigate - in a generic setting - the regime of applicability of the Alcock-Paczynski (AP) scaling conventionally applied to test different cosmological models, given a fiduc…
The WiggleZ Dark Energy Survey: Final data release and cosmological results
David Parkinson, Signe Riemer-Sørensen, Chris Blake +25
This paper presents cosmological results from the final data release of the WiggleZ Dark Energy Survey. We perform full analyses of different cosmological models using the WiggleZ…
MegaZ-LRG: A photometric redshift catalogue of one million SDSS Luminous Red Galaxies
Adrian Collister, Ofer Lahav, Chris Blake +14
We describe the construction of MegaZ-LRG, a photometric redshift catalogue of over one million luminous red galaxies (LRGs) in the redshift range 0.4 < z < 0.7 with limiting magni…
KiDS-450 + 2dFLenS: Cosmological parameter constraints from weak gravitational lensing tomography and overlapping redshift-space galaxy clustering
Shahab Joudaki, Chris Blake, Andrew Johnson +19
We perform a combined analysis of cosmic shear tomography, galaxy-galaxy lensing tomography, and redshift-space multipole power spectra (monopole and quadrupole) using 450 deg…
Measuring baryon acoustic oscillations with future SKA surveys
Philip Bull, Stefano Camera, Alvise Raccanelli +4
The imprint of baryon acoustic oscillations (BAO) in large-scale structure can be used as a standard ruler for mapping out the cosmic expansion history, and hence for testing cosmo…
The WiggleZ Dark Energy Survey: the selection function and z=0.6 galaxy power spectrum
Chris Blake, Sarah Brough, Matthew Colless +18
We report one of the most accurate measurements of the three-dimensional large-scale galaxy power spectrum achieved to date, using 56,159 redshifts of bright emission-line galaxies…
Power spectrum modelling of galaxy and radio intensity maps including observational effects
Chris Blake
Fluctuations in the large-scale structure of the Universe contain significant information about cosmological physics, but are modulated in survey datasets by various observational…
Joint growth rate measurements from redshift-space distortions and peculiar velocities in the 6dF Galaxy Survey
Caitlin Adams, Chris Blake
We present a new model for the cross-covariance between galaxy redshift-space distortions and peculiar velocities. We combine this with the auto-covariance models of both probes in…
Power spectrum multipoles on the curved sky: an application to the 6-degree Field Galaxy Survey
Chris Blake, Paul Carter, Jun Koda
The peculiar velocities of galaxies cause their redshift-space clustering to depend on the angle to the line-of-sight, providing a key test of gravitational physics on cosmological…
The WiggleZ Dark Energy Survey: Galaxy Evolution at 0.25 < z < 0.75 Using The Second Red-Sequence Cluster Survey (RCS-2)
I. H. Li, H. K. C. Yee, Chris Blake +23
We study the evolution of galaxy populations around the spectroscopic WiggleZ sample of starforming galaxies at 0.25 < z < 0.75 using the photometric catalog from the Second Red-Se…
Cosmological Forecasts for Combined and Next Generation Peculiar Velocity Surveys
Cullan Howlett, Lister Staveley-Smith, Chris Blake
Peculiar velocity surveys present a very promising route to measuring the growth rate of large-scale structure and its scale dependence. However, individual peculiar velocity surve…
The 6dF Galaxy Survey: Dependence of halo occupation on stellar mass
Florian Beutler, Chris Blake, Matthew Colless +6
In this paper we study the stellar-mass dependence of galaxy clustering in the 6dF Galaxy Survey. The near-infrared selection of 6dFGS allows more reliable stellar mass estimates c…
KiDS-450: Testing extensions to the standard cosmological model
Shahab Joudaki, Alexander Mead, Chris Blake +16
We test extensions to the standard cosmological model with weak gravitational lensing tomography using 450 deg of imaging data from the Kilo Degree Survey (KiDS). In these exte…
The WiggleZ Dark Energy Survey: High Resolution Kinematics of Luminous Star-Forming Galaxies
Emily Wisnioski, Karl Glazebrook, Chris Blake +24
We report evidence of ordered orbital motion in luminous star-forming galaxies at z~1.3. We present integral field spectroscopy (IFS) observations, performed with the OH Suppressin…
Probing dark energy using baryonic oscillations in the galaxy power spectrum as a cosmological ruler
Chris Blake, Karl Glazebrook
We show that the baryonic oscillations expected in the galaxy power spectrum may be used as a "standard cosmological ruler'' to facilitate accurate measurement of the cosmological…
CFHTLenS: Testing the Laws of Gravity with Tomographic Weak Lensing and Redshift Space Distortions
Fergus Simpson, Catherine Heymans, David Parkinson +20
Dark energy may be the first sign of new fundamental physics in the Universe, taking either a physical form or revealing a correction to Einsteinian gravity. Weak gravitational len…
The environments and clustering properties of 2dFGRS-selected starburst galaxies
Matt Owers, Chris Blake, Warrick Couch +2
We investigate the environments and clustering properties of starburst galaxies selected from the 2dF Galaxy Redshift Survey (2dFGRS) in order to determine which, if any, environme…
The WiggleZ Dark Energy Survey: Probing the Epoch of Radiation Domination using Large Scale Structure
Gregory B. Poole, Chris Blake, David Parkinson +24
We place the most robust constraint to date on the scale of the turnover in the cosmological matter power spectrum using data from the WiggleZ Dark Energy Survey. We find this feat…
Testing modified gravity scenarios with direct peculiar velocities
Stuart Lyall, Chris Blake, Ryan Turner +2
The theoretical basis of dark energy remains unknown and could signify a need to modify the laws of gravity on cosmological scales. In this study we investigate how the clustering…
Dust Properties of Clumpy Disc Galaxies at z~1.3 with Herschel-SPIRE
Emily Wisnioski, Karl Glazebrook, Chris Blake +1
We present the far-infrared derived dust properties from Herschel SPIRE of the WiggleZ kinematic sample of 13 star-forming galaxies at z~1.3, with existing ancillary ~kpc resolutio…
The galaxy power spectrum on the lightcone: deep, wide-angle redshift surveys and the turnover scale
Daniel Pryer, Robert E. Smith, Robin Booth +3
We derive expressions for the survey-window convolved galaxy power spectrum in real space for a full sky and deep redshift survey, but taking into account the geometrical lightcone…
The WiggleZ Dark Energy Survey: Improved Distance Measurements to z = 1 with Reconstruction of the Baryonic Acoustic Feature
Eyal A. Kazin, Jun Koda, Chris Blake +26
We present significant improvements in cosmic distance measurements from the WiggleZ Dark Energy Survey, achieved by applying the reconstruction of the baryonic acoustic feature te…
The WiggleZ Dark Energy Survey: testing the cosmological model with baryon acoustic oscillations at z=0.6
Chris Blake, Tamara Davis, Gregory Poole +23
We measure the imprint of baryon acoustic oscillations (BAOs) in the galaxy clustering pattern at the highest redshift achieved to date, z=0.6, using the distribution of N=132,509…
The WiggleZ Dark Energy Survey: the growth rate of cosmic structure since redshift z=0.9
Chris Blake, Sarah Brough, Matthew Colless +22
We present precise measurements of the growth rate of cosmic structure for the redshift range 0.1 < z < 0.9, using redshift-space distortions in the galaxy power spectrum of the Wi…
The angular power spectrum of NVSS radio galaxies
Chris Blake, Pedro G. Ferreira, Julian Borrill
We measure the angular power spectrum of radio galaxies in the NRAO VLA Sky Survey (NVSS) using two independent methods: direct spherical harmonic analysis and maximum likelihood e…
Improving estimates of the growth rate using galaxy-velocity correlations: a simulation study
Ryan J. Turner, Chris Blake, Rossana Ruggeri
We present an improved framework for estimating the growth rate of large-scale structure, using measurements of the galaxy-velocity cross-correlation in configuration space. We con…
Revisiting CFHTLenS cosmic shear: Optimal E/B mode decomposition using COSEBIs and compressed COSEBIs
Marika Asgari, Catherine Heymans, Chris Blake +3
We present a re-analysis of the CFHTLenS weak gravitational lensing survey using Complete Orthogonal Sets of E/B-mode Integrals, known as COSEBIs. COSEBIs provide a complete set of…
The WiggleZ Dark Energy Survey: Survey Design and First Data Release
Michael J. Drinkwater, Russell J. Jurek, Chris Blake +24
The WiggleZ Dark Energy Survey is a survey of 240,000 emission line galaxies in the distant universe, measured with the AAOmega spectrograph on the 3.9-m Anglo-Australian Telescope…
RCSLenS: Testing gravitational physics through the cross-correlation of weak lensing and large-scale structure
Chris Blake, Shahab Joudaki, Catherine Heymans +8
The unknown nature of dark energy motivates continued cosmological tests of large-scale gravitational physics. We present a new consistency check based on the relative amplitude of…
A combined measurement of cosmic growth and expansion from clusters of galaxies, the CMB and galaxy clustering
David Rapetti, Chris Blake, Steven W. Allen +3
Combining galaxy cluster data from the ROSAT All-Sky Survey and the Chandra X-ray Observatory, cosmic microwave background data from the Wilkinson Microwave Anisotropy Probe, and g…
On the cross-correlation of sub-mm sources and optically-selected galaxies
Chris Blake, Alexandra Pope, Douglas Scott +1
Bright sub-mm galaxies are expected to arise in massive highly-biased haloes, and hence exhibit strong clustering. We argue that a valuable tool for measuring these clustering prop…
HI intensity mapping with MeerKAT: power spectrum detection in cross-correlation with WiggleZ galaxies
Steven Cunnington, Yichao Li, Mario G. Santos +13
We present a detection of correlated clustering between MeerKAT radio intensity maps and galaxies from the WiggleZ Dark Energy Survey. We find a detection of the cross-corr…
The 6dF Galaxy Survey: Baryon Acoustic Oscillations and the Local Hubble Constant
Florian Beutler, Chris Blake, Matthew Colless +6
We analyse the large-scale correlation function of the 6dF Galaxy Survey (6dFGS) and detect a Baryon Acoustic Oscillation (BAO) signal. The 6dFGS BAO detection allows us to constra…
Baryon acoustic oscillation methods for generic curvature: Application to the SDSS-III Baryon Oscillation Spectroscopic Survey
Asta Heinesen, Chris Blake, Yong-Zhuang Li +1
We develop methods for investigating baryon acoustic oscillation (BAO) features in cosmological models with non-trivial (but slowly varying) averaged spatial curvature: models that…
The 6dF Galaxy Survey: Bulk Flows on Mpc scales
Morag I. Scrimgeour, Tamara M. Davis, Chris Blake +12
We measure the bulk flow of the local Universe using the 6dF Galaxy Survey peculiar velocity sample (6dFGSv), the largest and most homogeneous peculiar velocity sample to date. 6dF…
Cosmology with SKA Radio Continuum Surveys
Matt J. Jarvis, David Bacon, Chris Blake +5
Radio continuum surveys have, in the past, been of restricted use in cosmology. Most studies have concentrated on cross-correlations with the cosmic microwave background to detect…
The BOSS-WiggleZ overlap region I: Baryon Acoustic Oscillations
Florian Beutler, Chris Blake, Jun Koda +4
We study the large-scale clustering of galaxies in the overlap region of the Baryon Oscillation Spectroscopic Survey (BOSS) CMASS sample and the WiggleZ Dark Energy Survey. We calc…