Por favor, use este identificador para citar o enlazar este ítem:
http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1915| Testing General Relativity Using the Evolution of Linear Bias | |
| Manolis Plionis | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| linear bias Hubble scale effects. Testing general relativity | |
| We investigate the cosmic evolution of the linear bias in the framework of a flat FLRW spacetime. We consider metric perturbations in the Newtonian gauge, including Hubble scale effects. Making the following assumptions, (i) scale independent current epoch bias b₀, (ii) equal accelerations between tracers and matter, (iii) unimportant halo merging effects (which is quite accurate for z < 3), we analytically derive the scale dependent bias evolution. The identified scale dependence is only due to Hubble scale evolution GR effects, while other scale dependence contributions are ignored. We find that up to galaxy cluster scales the fluctuations of the metric do not introduce a significant scale dependence in the linear bias. Our bias evolution model is then used to derive a connection between the matter growth index γ and the observable value of the tracer power spectrum normalization σ₈(z). We show how this connection can be used as an observational test of General Relativity on extragalactic scales. | |
| Physical review D: Particles and fields | |
| 09-05-2012 | |
| Artículo | |
| Inglés | |
| Estudiantes Investigadores Público en general | |
| Basilakos, S., et al., (2012), Testing General Relativity Using the Evolution of Linear Bias, Physical review D: Particles and fields, Vol. 85(12):1-11 | |
| ASTRONOMÍA Y ASTROFÍSICA | |
| Versión aceptada | |
| acceptedVersion - Versión aceptada | |
| Aparece en las colecciones: | Artículos de Astrofísica |
Cargar archivos:
| Fichero | Tamaño | Formato | |
|---|---|---|---|
| 4 Plionis_2012_PhRvD85.pdf | 305.13 kB | Adobe PDF | Visualizar/Abrir |