Stephen Appleby
Korea Institute for Advanced Study
73 Papers
638 Citations
Stephen Appleby is an academic researcher from Korea Institute for Advanced Study. The author has contributed to research in topics: Minkowski space & Dark energy. The author has an hindex of 23, co-authored 68 publications. Previous affiliations of Stephen Appleby include University of Manchester & Ewha Womans University.
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Papers
Cosmology and Fundamental Physics with the Euclid Satellite
Luca Amendola,Stephen Appleby,Anastasios Avgoustidis,David Bacon,Tessa Baker,Marco Baldi,Marco Baldi,Marco Baldi,Nicola Bartolo,Nicola Bartolo,Alain Blanchard,Camille Bonvin,Stefano Borgani,Stefano Borgani,Enzo Branchini,Enzo Branchini,Clare Burrage,Stefano Camera,Carmelita Carbone,Carmelita Carbone,Luciano Casarini,Luciano Casarini,Mark Cropper,Claudia de Rham,J. P. Dietrich,Cinzia Di Porto,Ruth Durrer,Anne Ealet,Pedro G. Ferreira,Fabio Finelli,Juan Garcia-Bellido,Tommaso Giannantonio,Luigi Guzzo,Luigi Guzzo,Alan Heavens,Lavinia Heisenberg,Catherine Heymans,Henk Hoekstra,Lukas Hollenstein,Rory Holmes,Zhiqi Hwang,Knud Jahnke,Thomas D. Kitching,Tomi S. Koivisto,Martin Kunz,Giuseppe Vacca,Eric V. Linder,M. March,Valerio Marra,Carlos Martins,Elisabetta Majerotto,Dida Markovic,David J. E. Marsh,Federico Marulli,Federico Marulli,Richard Massey,Yannick Mellier,Francesco Montanari,David F. Mota,Nelson J. Nunes,Will J. Percival,Valeria Pettorino,Valeria Pettorino,Cristiano Porciani,Claudia Quercellini,Justin I. Read,Massimiliano Rinaldi,Domenico Sapone,Ignacy Sawicki,Roberto Scaramella,Constantinos Skordis,Constantinos Skordis,Fergus Simpson,Andy Taylor,Shaun A. Thomas,Roberto Trotta,Licia Verde,Filippo Vernizzi,Adrian Vollmer,Yun Wang,Jochen Weller,T. G. Zlosnik +81 more
TL;DR: Euclid is a European Space Agency medium-class mission selected for launch in 2020 within the cosmic vision 2015-2025 program as discussed by the authors, which will explore the expansion history of the universe and the evolution of cosmic structures by measuring shapes and red-shift of galaxies as well as the distribution of clusters of galaxies over a large fraction of the sky.
Do consistent $F(R)$ models mimic General Relativity plus $\Lambda$?
TL;DR: In this article, the Friedmann equation for modified gravity models is calculated, and it is shown that these models must mimic general relativity plus Λ throughout the cosmic history, with exponentially suppressed corrections.
661
Cosmology and Fundamental Physics with the Euclid Satellite
Luca Amendola,Stephen Appleby,Anastasios Avgoustidis,David Bacon,Tessa Baker,Marco Baldi,Nicola Bartolo,Alain Blanchard,Camille Bonvin,Stefano Borgani,Enzo Branchini,Clare Burrage,Stefano Camera,Carmelita Carbone,Luciano Casarini,Mark Cropper,Claudia de Rham,J. P. Dietrich,Cinzia Di Porto,Ruth Durrer,Anne Ealet,Pedro G. Ferreira,Fabio Finelli,Juan Garcia-Bellido,Tommaso Giannantonio,Luigi Guzzo,Alan Heavens,Lavinia Heisenberg,Catherine Heymans,Henk Hoekstra,Lukas Hollenstein,Rory Holmes,O Horst,Z Hwang,Knud Jahnke,Thomas D. Kitching,Tomi S. Koivisto,Martin Kunz,Giuseppe Vacca,Eric V. Linder,M. March,Marra,Carlos Martins,Elisabetta Majerotto,D Markovic,David J. E. Marsh,Federico Marulli,Richard Massey,Yannick Mellier,Francesco Montanari,David F. Mota,Nelson J. Nunes,Will J. Percival,Pettorino,Cristiano Porciani,Claudia Quercellini,Justin I. Read,Massimiliano Rinaldi,Domenico Sapone,Ignacy Sawicki,Roberto Scaramella,Constantinos Skordis,Fergus Simpson,Andy Taylor,Shaun A. Thomas,Roberto Trotta,Licia Verde,Filippo Vernizzi,Adrian Vollmer,Yun Wang,Jochen Weller,T. G. Zlosnik +71 more
- 01 Dec 2018
TL;DR: This review is meant to provide a guide to the scientific themes that will underlie the activity of the group during the preparation of the Euclid mission and discusses five broad topics: dark energy and modified gravity, dark matter, initial conditions, basic assumptions and questions of methodology in the data analysis.
621
Curing singularities in cosmological evolution of F(R) gravity
TL;DR: In this paper, a quadratic correction with a sufficiently small coefficient to the F(R) function at large curvatures was proposed to eliminate the scalaron overabundance problem.
339
Aspects of cosmological expansion in F(R) gravity models
TL;DR: In this article, the authors study cosmological expansion in F(R) gravity using the trace of the field equations and find that high frequency asymmetric oscillations and a singularity at finite time appear to be present for a wide range of initial conditions.
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