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  1. We present a general parallelized and easy-to-use code to perform numerical simulations of structure formation using the COLA (COmoving Lagrangian Acceleration) method for cosmological models that exhibit scale-dependent growth at the level of first and second order Lagrangian perturbation theory. For modified gravity theories we also include screening using a fast approximate method that ...
    Author:Hans A. Winther, Kazuya Koyama, Marc Manera, Bill S. Wright, Gong-Bo ZhaoPublished:2017
  2. iopscience.iop.org

    COLA with scale-dependent growth: applications to screened modified gravity models. Hans A. Winther 1, Kazuya Koyama 1, Marc Manera 3,4, Bill S. Wright 1 and Gong-Bo Zhao 1,2. ... We test the code by comparing it to full simulations of two popular modified gravity models, namely f(R) ...
  3. of the COLA method and Lagrangian perturbation theory in CDM before we derive the general equations for models with scale-dependent growth in Sec.4. In Sec.5we give a brief description of the modi ed gravity models we consider in this paper before describing the approximate method we use to include (three types of) screening mechanisms in Sec.6. In
    Author:Hans A. Winther, Kazuya Koyama, Marc Manera, Bill S. Wright, Gong-Bo ZhaoPublished:2017
  4. researchportal.port.ac.uk

    COLA with scale-dependent growth: applications to screened modified gravity models. Hans A. Winther, Kazuya Koyama, Marc Manera, ... method for cosmological models that exhibit scale-dependent growth at the level of first and second order Lagrangian perturbation theory. For modified gravity theories we also include screening using a fast ...
    Author:Hans A. Winther, Kazuya Koyama, Marc Manera, Bill S. Wright, Gong-Bo ZhaoPublished:2017
  5. www2.yukawa.kyoto-u.ac.jp

    Behaviour of gravity There regimes of gravity Understandings of non-linear clustering require N-body simulations where the non-linear scalar equation needs to be solved Scalar tensor GR In most models,the scalar mode obeys non-linear equations describing the transition from the scalar tensor theory on large scales to GR on small scales 29 3 24 ...
  6. COLA with scale-dependent growth: applications to screened modified gravity models. Hans A. Winther. 27, Hans A. Winther. 26 ... (COmoving Lagrangian Acceleration) method for cosmological models that exhibit scale-dependent growth at the level of first and second order Lagrangian perturbation theory. For modified gravity theories we also ...

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