Outputs (5)

Speeding up N-body simulations of modified gravity: Vainshtein screening models (2015)
Journal Article
Barreira, A., Bose, S., & Li, B. (2015). Speeding up N-body simulations of modified gravity: Vainshtein screening models. Journal of Cosmology and Astroparticle Physics, 2015(12), Article 059. https://doi.org/10.1088/1475-7516/2015/12/059

We introduce and demonstrate the power of a method to speed up current iterative techniques for N-body modified gravity simulations. Our method is based on the observation that the accuracy of the final result is not compromised if the calculation of... Read More about Speeding up N-body simulations of modified gravity: Vainshtein screening models.

The Copernicus Complexio: Statistical Properties of Warm Dark Matter Haloes (2015)
Journal Article
Bose, S., Hellwing, W., Frenk, C., Jenkins, A., Lovell, M., Helly, J., & Li, B. (2016). The Copernicus Complexio: Statistical Properties of Warm Dark Matter Haloes. Monthly Notices of the Royal Astronomical Society, 455(1), 318-333. https://doi.org/10.1093/mnras/stv2294

The recent detection of a 3.5 keV X-ray line from the centres of galaxies and clusters by Bulbul et al. and Boyarsky et al. has been interpreted as emission from the decay of 7 keV sterile neutrinos which could make up the (warm) dark matter (WDM). A... Read More about The Copernicus Complexio: Statistical Properties of Warm Dark Matter Haloes.

Planes of satellite galaxies: when exceptions are the rule (2015)
Journal Article
Cautun, M., Bose, S., Frenk, C. S., Guo, Q., Han, J., Hellwing, W. A., Sawala, T., & Wang, W. (2015). Planes of satellite galaxies: when exceptions are the rule. Monthly Notices of the Royal Astronomical Society, 452(4), 3838-3852. https://doi.org/10.1093/mnras/stv1557

The detection of planar structures within the satellite systems of both the Milky Way (MW) and Andromeda (M31) has been reported as being in stark contradiction to the predictions of the standard cosmological model (Λ cold dark matter – ΛCDM). Given... Read More about Planes of satellite galaxies: when exceptions are the rule.

Testing the quasi-static approximation in f(R) gravity simulations (2015)
Journal Article
Bose, S., Hellwing, W. A., & Li, B. (2015). Testing the quasi-static approximation in f(R) gravity simulations. Journal of Cosmology and Astroparticle Physics, 2015(02), https://doi.org/10.1088/1475-7516/2015/02/034

Numerical simulations in modified gravity have commonly been performed under the quasi-static approximation—that is, by neglecting the effect of time derivatives in the equation of motion of the scalar field that governs the fifth force in a given mo... Read More about Testing the quasi-static approximation in f(R) gravity simulations.

Gauge theories and dessins d’enfants: beyond the torus (2015)
Journal Article
Bose, S., Gundry, J., & He, Y.-H. (2015). Gauge theories and dessins d’enfants: beyond the torus. Journal of High Energy Physics, 2015(1), Article 135. https://doi.org/10.1007/jhep01%282015%29135

Dessin d’enfants on elliptic curves are a powerful way of encoding doubly-periodic brane tilings, and thus, of four-dimensional supersymmetric gauge theories whose vacuum moduli space is toric, providing an interesting interplay between physics, geom... Read More about Gauge theories and dessins d’enfants: beyond the torus.