Power-law cosmologies in minimal and maximal gauged supergravity

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In this paper we search for accelerating power-law solutions and ekpyrotic solutions within minimal and maximal four dimensional supergravity theories.

• We focus on the STU model for N=1 and on the new CSO(p,q,r) theories, which were recently obtained exploiting electromagnetic duality, for N=8.
• In the minimal case we find some new ekpyrotic solutions, while in the maximal case we find some new generic power-law solutions.
• We do not find any new accelerating solutions for these models.