152 citations · 617 across the 16 of their papers we have counts for
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astro-ph2008★ 17 cited
Non-Gaussianity in three fluid curvaton model
Tuomas Multamaki, Jani Sainio, Iiro Vilja
The generation of non-gaussianity is studied in a three fluid curvaton model. By utilizing second order perturbation theory we derive general formulae for the large scale temperatu…
astro-ph2007★ 2 cited
Constraints on the three-fluid model of curvaton decay
Tuomas Multamaki, Jani Sainio, Iiro Vilja
A three fluid system describing the decay of the curvaton is studied by numerical and analytical means. We place constraints on the allowed interaction strengths between the fluids…
astro-ph2006★ 2 cited
Suppression of the large scale curvature perturbation by interacting fluids
T. Multamaki, J. Sainio, I. Vilja
The large-scale dynamics of a two-fluid system with a time dependent interaction is studied analytically and numerically. We show how a rapid transition can significantly suppress…