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http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1057| The halo MASS-BIAS redshift evolution in the ΛCDM cosmology | |
| Manolis Plionis | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| We derive an analytic model for the redshift evolution of linear-bias, allowing for interactions and merging of the mass-tracers, by solving a second order differential equation based on linear perturbation theory and the Friedmann-Lemaitre solutions of the cosmological field equations. We then study the halomass dependence of the bias evolution, using the dark matter halo distribution in a ΛCDM simulation in order to calibrate the free parameters of the model. Finally, we compare our theoretical predictions with available observational data and find a good agreement. In particular, we find that the bias of optical QSO’s evolve differently than those selected in X-rays and that their corresponding typical dark matter halo mass is ∼ 10¹³ h⁻¹ Mꙩ and ≿5 × 10¹³ h⁻¹ Mꙩ, respectively. | |
| The astrophysical journal | |
| 2008 | |
| Artículo | |
| Inglés | |
| Estudiantes Investigadores Público en general | |
| Basilakos, S., et al., (2008). The halo MASS-BIAS redshift evolution in the ΛCDM cosmology, The astrophysical journal. Vol.678(2):627-634 | |
| ASTRONOMÍA Y ASTROFÍSICA | |
| Versión aceptada | |
| acceptedVersion - Versión aceptada | |
| Aparece en las colecciones: | Artículos de Astrofísica |
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