Dark energy and CMB bispectrum

Details Dark energy and CMB bispectrum Dark energy and CMB bispectrum

2004-09-02

arxiv.org/abs/astro-ph/0409038v1

Astronomy and Astrophysics

Astrophysics

6 pages, 5 figures. To appear in "Impact of Gravitational Lensing on Cosmology", IAU Symposium 225, Mellier & Meylan eds

Scientific paper

10.1017/S1743921305001882

We consider the CMB bispectrum signal induced by structure formation through the correlation between the Integrated Sachs-Wolfe and the weak lensing effect. We investigate how the bispectrum knowledge can improve our knowledge of the most important cosmological parameters, focusing on the dark energy ones. Preliminary results suggest a consistent improvement on the estimation of dark energy abundance and on dynamical properties of the equation of state.

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