522 citations · 4.2k across the 89 of their papers we have counts for
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A "MeerKAT-meets-LOFAR" Study of 2A 0335+096: Discovery of a Complex 500 kpc Radio Halo in a Disturbed Cool-Core Cluster
C. J. Riseley, R. J. van Weeren, L. Lovisari +9
The emerging picture of radio haloes and mini-haloes in galaxy clusters is more blurred and far less distinct than once thought. While both trace cosmic ray electrons and magnetic…
The SKA View of the Sunyaev-Zeldovich Effect from Massive Cosmic Halos
Yvette C. Perrott, Luca Di Mascolo, Rémi Adam +4
The thermal intracluster medium (ICM) can be observed via its interaction with Cosmic Microwave Background photons, known as the Sunyaev-Zeldovich (SZ) effect. This effect produces…
Bayesian recalibration of Planck galaxy cluster scaling relations including relativistic Sunyaev-Zel'dovich corrections
Yvette C. Perrott
We investigate the impact of relativistic SZ corrections on Planck measurements of massive galaxy clusters, finding that they have a significant impact at the 5 -- 15% and…
Atacama Large Aperture Submillimeter Telescope (AtLAST) Science: Resolving the Hot and Ionized Universe through the Sunyaev-Zeldovich effect
Luca Di Mascolo, Yvette Perrott, Tony Mroczkowski +23
An omnipresent feature of the multi-phase ``cosmic web'' is that warm/hot (> K) ionized gas pervades it. This gas constitutes a relevant contribution to the overall universal…
A Semi-Parametric Approach to Fitting Gas Pressure Profiles of Galaxy Clusters
Kang Wang, Yvette Perrott, Richard Arnold +1
This study focuses on modelling galaxy cluster gas profiles via a semi-parametric nodal approach. While traditional methods like the generalised Navarro-Frenk-White (gNFW) often en…
Temperature measurements with the relativistic Sunyaev-Zel'dovich effect
Yvette Perrott
At temperatures above ~5 keV, the non-relativistic approximation used to derive the classical thermal Sunyaev-Zel'dovich effect spectrum begins to fail. When relativistic effects a…
Redshifts of radio sources in the Million Quasars Catalogue from machine learning
S. J. Curran, J. P. Moss, Y. C. Perrott
With the aim of using machine learning techniques to obtain photometric redshifts based upon a source's radio spectrum alone, we have extracted the radio sources from the Million Q…
A 15.5 GHz detection of the galaxy cluster minihalo in RXJ1720.1+2638
Yvette C. Perrott, Pedro Carvalho, Patrick J. Elwood +6
RXJ1720.1+2638 is a cool-core, 'relaxed-appearing' cluster with a minihalo previously detected up to 8.4 GHz, confined by X-ray-detected cold fronts. We present observations of the…
QSO photometric redshifts using machine learning and neural networks
S. J. Curran, J. P. Moss, Y. C. Perrott
The scientific value of the next generation of large continuum surveys would be greatly increased if the redshifts of the newly detected sources could be rapidly and reliably estim…
28 -- 40 GHz variability and polarimetry of bright compact sources in the QUIJOTE cosmological fields
Yvette C. Perrott, Marcos López-Caniego, Ricardo T. Génova-Santos +8
We observed 51 sources in the Q-U-I JOint TEnerife (QUIJOTE) cosmological fields which were brighter than 1 Jy at 30 GHz in the Planck Point Source Catalogue (version 1), with the…
Multiwavelength view of SPT-CL J2106-5844. The radio galaxies and the thermal and relativistic plasmas in a massive galaxy cluster merger at z~1.13
Luca Di Mascolo, Tony Mroczkowski, Yvette Perrott +12
SPT-CL J2106-5844 is among the most massive galaxy clusters at z>1 yet discovered. While initially used in cosmological tests to assess the compatibility with CDM cosmology of s…
Sunyaev--Zel'dovich profile fitting with joint AMI-Planck analysis
Yvette C. Perrott, Kamran Javid, Pedro Carvalho +5
We develop a Bayesian method of analysing Sunyaev-Zel'dovich measurements of galaxy clusters obtained from the Arcminute Microkelvin Imager (AMI) radio interferometer system and fr…
Physical modelling of galaxy clusters using Einasto dark matter profiles
Kamran Javid, Yvette C. Perrott, Clare Rumsey +1
We derive a model for Sunyaev--Zel'dovich data from a galaxy cluster which uses an Einasto profile to model the cluster's dark matter component. This model is similar to the physic…
Physical modelling of galaxy clusters detected by Planck
Kamran Javid, Malak Olamaie, Yvette C. Perrott +5
We present a comparison of mass estimates for galaxy cluster candidates from the second Planck catalogue (PSZ2) of Sunyaev-Zel'dovich sources. We compare the mass values obtai…
Comparison of physical and observational galaxy cluster modelling
Kamran Javid, Yvette C. Perrott, Michael P. Hobson +3
We present a comparison between three cluster models applied to data obtained by the Arcminute Microkelvin Imager radio interferometer system. The physical model (PM) parameterises…
The QUIJOTE Experiment: Prospects for CMB B-MODE polarization detection and foregrounds characterization
F. Poidevin, J. A. Rubino-Martin, R. Genova-Santos +47
QUIJOTE (Q-U-I JOint TEnerife) is an experiment designed to achieve CMB B-mode polarization detection and sensitive enough to detect a primordial gravitational-wave component if th…
AMI SZ observation of galaxy-cluster merger CIZA J2242+5301: perpendicular flows of gas and dark matter
Clare Rumsey, Yvette C. Perrott, Malak Olamaie +5
AMI observations towards CIZA J2242+5301, in comparison with observations of weak gravitational lensing and X-ray emission from the literature, are used to investigate the behaviou…
Free-form modelling of galaxy clusters: a Bayesian and data-driven approach
Malak Olamaie, Michael P. Hobson, Farhan Feroz +5
A new method is presented for modelling the physical properties of galaxy clusters. Our technique moves away from the traditional approach of assuming specific parameterised functi…
AMI observations of ten CLASH galaxy clusters: SZ and X-ray data used together to determine cluster dynamical states
Clare Rumsey, Malak Olamaie, Yvette C. Perrott +7
Using Arcminute Microkelvin Imager (AMI) SZ observations towards ten CLASH clusters we investigate the influence of cluster mergers on observational galaxy cluster studies. Althoug…
Planck 2015 results. XXVII. The Second Planck Catalogue of Sunyaev-Zeldovich Sources
Planck Collaboration, P. A. R. Ade, N. Aghanim +257
We present the all-sky Planck catalogue of Sunyaev-Zeldovich (SZ) sources detected from the 29 month full-mission data. The catalogue (PSZ2) is the largest SZ-selected sample of ga…
Planck 2013 results. XXIX. The Planck catalogue of Sunyaev-Zeldovich sources: Addendum
Planck Collaboration, P. A. R. Ade, N. Aghanim +276
We update the all-sky Planck catalogue of 1227 clusters and cluster candidates (PSZ1) published in March 2013, derived from Sunyaev-Zeldovich (SZ) effect detections using the first…
Comparison of Sunyaev-Zel'dovich measurements from Planck and from the Arcminute Microkelvin Imager for 99 galaxy clusters
Y. C. Perrott, M. Olamaie, C. Rumsey +39
We present observations and analysis of a sample of 123 galaxy clusters from the 2013 Planck catalogue of Sunyaev-Zel'dovich sources with the Arcminute Microkelvin Imager (AMI), a…
The highest-frequency detection of a radio relic: 16-GHz AMI observations of the `Sausage' cluster
Andra Stroe, Clare Rumsey, Jeremy J. Harwood +6
We observed the cluster CIZA J2242.8+5301 with the Arcminute Microkelvin Imager at GHz and present the first high radio-frequency detection of diffuse, non-thermal cluster emi…
A joint analysis of AMI and CARMA observations of the recently discovered SZ galaxy cluster system AMI-CL J0300+2613
AMI Consortium, :, Timothy W. Shimwell +16
We present CARMA observations of a massive galaxy cluster discovered in the AMI blind SZ survey. Without knowledge of the cluster redshift a Bayesian analysis of the AMI, CARMA and…