http://arxiv.org/abs/2203.12582
The imprint of interacting dark energy (IDE) needs to be correctly identified in order to avoid bias in constraints on IDE, on the largest scales. This paper investigates the large-scale imprint of IDE in redshift space distortions. The results suggest that, for a constant dark energy equation of state parameter, an IDE model where the dark energy transfer rate is proportional to the dark energy density, exhibits an alternating positive-negative effect in the redshift space distortions angular power spectrum — which varies with respect to redshift z. The results also suggest that the redshift space distortions can be used to distinguish IDE models at low z ~ 0.1. Moreover, the angular power spectrum coss-correlations appear to hold the potential to be a viable tool for detecting the imprint of IDE, at z < 0.7.
D. Duniya
Thu, 24 Mar 22
45/56
Comments: 5 pages, 3 figures