منابع مشابه
Can MAP and Planck map Planck physics ?
We investigate whether a recently proposed modulation of the power spectrum of primordial density fluctuations generated through transplankian (maybe stringy) effects during inflation can be observed. We briefly review the mechanism leading to the modulation and apply it to a generic slow-roll scenario of inflation. We then investigate how these primordial modulation effects leave an imprint in...
متن کاملMap and Planck Vs the Real Universe
The Microwave Anisotropy Probe (MAP) and Planck Surveyor satellites promise to provide accurate maps of the sky at a range of frequencies and angular scales, from which it will be possible to extract estimates for cosmological parameters. But the real Universe is a nasty, messy place, full of non-linear astrophysics. It is certainly clear that MAP and Planck will fix the background cosmology at...
متن کاملA Map-Making for the Planck Surveyor
We present a parallel implementation of a map-making algorithm for CMB anisotropy experiments which is both fast and efficient. We show for the first time a Maximum Likelihood, minimum variance map obtained by processing the entire data stream expected from the Planck Surveyor, under the assumption of a symmetric beam profile. Here we restrict ourselves to the case of the 30 GHz channel of the ...
متن کاملImplications of Planck and Map Measurements on Sparticle Spectra
Future sattelite (MAP and Planck), balloon and ground based experiments will determine the basic cosmological parameters within a few percent. We examine here the effect of this on constraining the SUSY parameter space for supergravity R-parity conserving models (with tan β ≤ 25) for the cases of νCDM and ΛCDM cosmological models. For the νCDM (ΛCDM) models, the gluino mass is restricted bymg̃ <...
متن کاملCharacterising the Primordial Cosmic Perturbations Using MAP and PLANCK
The most general homogeneous and isotropic statistical ensemble of linear scalar perturbations which are regular at early times, in a universe with only photons, baryons, neutrinos, and a cold dark matter (CDM) component, is described by a 5x5 symmetric matrix-valued generalization of the power spectrum. This description is complete if the perturbations are Gaussian, and even in the non-Gaussia...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2002
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2002/12/038