KK
Kazuya Koyama
University of Portsmouth, The University of Tokyo, Kyoto University
Research areas: Physics and Astronomy · Astronomy and Astrophysics · Cosmology and Gravitation Theories · Astrophysical Phenomena and Observations · Galaxies: Formation, Evolution, Phenomena
0000-0001-6727-6915
Employment
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University of Portsmouth Professor2016 - Present
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University of Portsmouth Academic, Professor, Professor of Cosmology2016 - Present
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University of Portsmouth Reader2010 - 2017
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University of Portsmouth RCUK academic fellow2006 - 2011
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University of Portsmouth PPARC postdoctoral fellow2005 - 2008
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University of Tokyo JSPS research fellow2002 - 2005
Education
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Kyoto University PhD1999 - 2002
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Kyoto University master1997 - 1999
Projects & Funding
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Cosmological tests of gravity H2020 European Research Council2015 - 2020
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Philip Leverhulme Prize Leverhulme Trust2009 - 2012
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Non-linear cosmological perturbations Royal Society2009 - 2010
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Modified garvity as an alternative to dark energy H2020 European Research Council2008 - 2013
Publications (313)
- Euclid preparation: CXII. Baryon acoustic oscillations extraction techniques Save
- Euclid preparation - CIII. Constraining parameterised models of modifications of gravity with the spectroscopic and photometric primary probes Save
- Euclid preparation - CV. CosmoPostProcess: A simulation calibrated framework for weak lensing selection bias in richness-selected galaxy clusters Save
- Euclid - VIII. Populating a dark universe using SciPIC Save
- Dark sector interactions in the w → -1 limit: velocity locking in pure momentum exchange models Save
- Nonparametric exploration of minimally coupled gravity with phantom crossing Save
- Euclid: Constraints on f(R) cosmologies from the spectroscopic and photometric primary probes Save
- Dark energy constraints in light of theoretical priors Save
- A Gaussian covariance matrix for joint pre- and post-reconstruction full-shape power spectrum analysis Save
- Biased tracers, Hybrid Effective Field Theory and modified gravity Save
- Forecasts for interacting dark energy with time-dependent momentum exchange Save
- Dynamical dark energy in light of the DESI DR2 baryonic acoustic oscillations measurements Save
- A field-level reaction for screened modified gravity Save
- Fast generation of weak lensing maps in modified gravity with COLA Save
- Euclid preparation - LXXI. Simulations and nonlinearities beyond ΛCDM. 3. Constraints on f(R) models from the photometric primary probes Save
- A cosmological full-shape power spectra analysis using pre- and post-reconstructed density fields Save
- Measuring the redshift-space distortions by cross-correlating the density fields before and after reconstruction Save
- Euclid. I. Overview of the Euclid mission Save
- Stochastic inflation beyond slow roll: noise modelling and importance sampling Save
- Euclid preparation - LXII. Simulations and non-linearities beyond Lambda cold dark matter. 1. Numerical methods and validation Save