Search Results - "Liddle, Andrew R"

Cosmic microwave background anomalies in an open universe by Liddle, Andrew R, Cortês, Marina

“…We argue that the observed large-scale cosmic microwave anomalies, discovered by WMAP and confirmed by the Planck satellite, are most naturally explained in…”
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The XMM Cluster Survey: optical analysis methodology and the first data release by Mehrtens, Nicola, Romer, A. Kathy, Hilton, Matt, Lloyd-Davies, E. J., Miller, Christopher J., Stanford, S. A., Hosmer, Mark, Hoyle, Ben, Collins, Chris A., Liddle, Andrew R., Viana, Pedro T. P., Nichol, Robert C., Stott, John P., Dubois, E. Naomi, Kay, Scott T., Sahlén, Martin, Young, Owain, Short, C. J., Christodoulou, L., Watson, William A., Davidson, Michael, Harrison, Craig D., Baruah, Leon, Smith, Mathew, Burke, Claire, Mayers, Julian A., Deadman, Paul-James, Rooney, Philip J., Edmondson, Edward M., West, Michael, Campbell, Heather C., Edge, Alastair C., Mann, Robert G., Sabirli, Kivanc, Wake, David, Benoist, Christophe, da Costa, Luiz, Maia, Marcio A. G., Ogando, Ricardo

“…The XMM Cluster Survey (XCS) is a serendipitous search for galaxy clusters using all publicly available data in the XMM-Newton Science Archive. Its main aims…”
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Inflation, dark matter, and dark energy in the string landscape by Liddle, Andrew R, Ureña-López, L Arturo

“…We consider the conditions needed to unify the description of dark matter, dark energy, and inflation in the context of the string landscape. We find that…”
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The XMM Cluster Survey: the interplay between the brightest cluster galaxy and the intracluster medium via AGN feedback by Stott, John P., Hickox, Ryan C., Edge, Alastair C., Collins, Chris A., Hilton, Matt, Harrison, Craig D., Romer, A. Kathy, Rooney, Philip J., Kay, Scott T., Miller, Christopher J., Sahlén, Martin, Lloyd-Davies, Ed J., Mehrtens, Nicola, Hoyle, Ben, Liddle, Andrew R., Viana, Pedro T. P., McCarthy, Ian G., Schaye, Joop, Booth, C. M.

“…Using a sample of 123 X-ray clusters and groups drawn from the XMM Cluster Survey first data release, we investigate the interplay between the brightest…”
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The XMM Cluster Survey: X-ray analysis methodology by Lloyd-Davies, E. J., Romer, A. Kathy, Mehrtens, Nicola, Hosmer, Mark, Davidson, Michael, Sabirli, Kivanc, Mann, Robert G., Hilton, Matt, Liddle, Andrew R., Viana, Pedro T. P., Campbell, Heather C., Collins, Chris A., Dubois, E. Naomi, Freeman, Peter, Harrison, Craig D., Hoyle, Ben, Kay, Scott T., Kuwertz, Emma, Miller, Christopher J., Nichol, Robert C., Sahlén, Martin, Stanford, S. A., Stott, John P.

“…The XMM Cluster Survey (XCS) is a serendipitous search for galaxy clusters using all publicly available data in the XMM-Newton Science Archive. Its main aims…”
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Information criteria for astrophysical model selection by Liddle, Andrew R.

“…Model selection is the problem of distinguishing competing models, perhaps featuring different numbers of parameters. The statistics literature contains two…”
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Observational constraints on thawing quintessence models by Clemson, Timothy G., Liddle, Andrew R.

“…We use a dynamical systems approach to study thawing quintessence models, using a multiparameter extension of the exponential potential which can approximate…”
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On data set tensions and signatures of new cosmological physics by Cortês, Marina, Liddle, Andrew R

“…ABSTRACT Can new cosmic physics be uncovered through tensions amongst data sets? Tensions in parameter determinations amongst different types of cosmological…”
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Hydrodynamical simulations of the Sunyaev-Zel'dovich effect: cluster scaling relations and X-ray properties by Da Silva, Antonio C., Kay, Scott T., Liddle, Andrew R., Thomas, Peter A.

“…ABSTRACT The Sunyaev–Zel'dovich (SZ) effect is a powerful new tool for finding and studying clusters at high redshift, particularly in combination with their…”
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Can topological defects mimic the BICEP2 B-mode signal? by Lizarraga, Joanes, Urrestilla, Jon, Daverio, David, Hindmarsh, Mark, Kunz, Martin, Liddle, Andrew R

“…We show that the B-mode polarization signal detected at low multipoles by BICEP2 cannot be entirely due to topological defects. This would be incompatible with…”
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Constraining topological defects with temperature and polarization anisotropies by Lizarraga, Joanes, Urrestilla, Jon, Daverio, David, Hindmarsh, Mark, Kunz, Martin, Liddle, Andrew R.

“…We analyze the possible contribution of topological defects to cosmic microwave anisotropies, both temperature and polarization. We allow for the presence of…”
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How many cosmological parameters by Liddle, Andrew R.

“…Constraints on cosmological parameters depend on the set of parameters chosen to define the model that is compared with observational data. I use the Akaike…”
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The XMM Cluster Survey: testing chameleon gravity using the profiles of clusters by Wilcox, Harry, Bacon, David, Nichol, Robert C., Rooney, Philip J., Terukina, Ayumu, Romer, A. Kathy, Koyama, Kazuya, Zhao, Gong-Bo, Hood, Ross, Mann, Robert G., Hilton, Matt, Manolopoulou, Maria, Sahlén, Martin, Collins, Chris A., Liddle, Andrew R., Mayers, Julian A., Mehrtens, Nicola, Miller, Christopher J., Stott, John P., Viana, Pedro T. P.

“…The chameleon gravity model postulates the existence of a scalar field that couples with matter to mediate a fifth force. If it exists, this fifth force would…”
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A Nested Sampling Algorithm for Cosmological Model Selection by Mukherjee, Pia, Parkinson, David, Liddle, Andrew R

“…The abundance of cosmological data becoming available means that a wider range of cosmological models are testable than ever before. However, an important…”
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Statistical Methods for Cosmological Parameter Selection and Estimation by Liddle, Andrew R.

“…The estimation of cosmological parameters from precision observables is an important industry with crucial ramifications for particle physics. In this article,…”
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Non-Gaussianity in axion N-flation models by Kim, Soo A, Liddle, Andrew R, Seery, David

“…We study perturbations in the multifield axion N-flation model, taking account of the full cosine potential. We find significant differences from previous…”
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Sunyaev-Zel'dovich clusters in Millennium gas simulations by Kay, Scott T., Peel, Michael W., Short, C. J., Thomas, Peter A., Young, Owain E., Battye, Richard A., Liddle, Andrew R., Pearce, Frazer R.

“…Large surveys using the Sunyaev-Zel'dovich (SZ) effect to find clusters of galaxies are now starting to yield large numbers of systems out to high redshift,…”
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The XMM Cluster Survey: Active Galactic Nuclei and Starburst Galaxies in XMMXCS J2215.9–1738 at z = 1.46 by Hilton, Matt, Lloyd-Davies, Ed, Stanford, S. Adam, Stott, John P, Collins, Chris A, Romer, A. Kathy, Hosmer, Mark, Hoyle, Ben, Kay, Scott T, Liddle, Andrew R, Mehrtens, Nicola, Miller, Christopher J, Sahlén, Martin, Viana, Pedro T. P

“…We use Chandra X-ray and Spitzer infrared (IR) observations to explore the active galactic nucleus (AGN) and starburst populations of XMMXCS J2215.9-1738 at z…”
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Tensors, BICEP2 results, prior dependence, and dust by Cortês, Marina, Liddle, Andrew R., Parkinson, David

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Designing decisive detections by Trotta, Roberto, Kunz, Martin, Liddle, Andrew R.

“…We present a general Bayesian formalism for the definition of figures of merit (FoMs) quantifying the scientific return of a future experiment. We introduce…”
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