Scale-dependence of non-Gaussianity in the curvaton model

Byrnes C, Enqvist K, Takahashi T (2010)
JCAP 2010(09): 026.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
We investigate the scale-dependence of f_NL in the self-interacting curvaton model. We show that the scale-dependence, encoded in the spectral index n_{f_NL}, can be observable by future cosmic microwave background observations, such as CMBpol, in a significant part of the parameter space of the model. We point out that together with information about the trispectrum g_NL, the self-interacting curvaton model parameters could be completely fixed by observations. We also discuss the scale-dependence of g_NL and its implications for the curvaton model, arguing that it could provide a complementary probe in cases where the theoretical value of n_{f_NL} is below observational sensitivity.
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Zeitschriftentitel
JCAP
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2010
Zeitschriftennummer
09
Artikelnummer
026
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Byrnes C, Enqvist K, Takahashi T. Scale-dependence of non-Gaussianity in the curvaton model. JCAP. 2010;2010(09): 026.
Byrnes, C., Enqvist, K., & Takahashi, T. (2010). Scale-dependence of non-Gaussianity in the curvaton model. JCAP, 2010(09), 026. doi:10.1088/1475-7516/2010/09/026
Byrnes, C., Enqvist, K., and Takahashi, T. (2010). Scale-dependence of non-Gaussianity in the curvaton model. JCAP 2010:026.
Byrnes, C., Enqvist, K., & Takahashi, T., 2010. Scale-dependence of non-Gaussianity in the curvaton model. JCAP, 2010(09): 026.
C. Byrnes, K. Enqvist, and T. Takahashi, “Scale-dependence of non-Gaussianity in the curvaton model”, JCAP, vol. 2010, 2010, : 026.
Byrnes, C., Enqvist, K., Takahashi, T.: Scale-dependence of non-Gaussianity in the curvaton model. JCAP. 2010, : 026 (2010).
Byrnes, Christian, Enqvist, K., and Takahashi, T. “Scale-dependence of non-Gaussianity in the curvaton model”. JCAP 2010.09 (2010): 026.

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