Interacting quintessence and growth of structure
In standard cosmologies, dark energy interacts only gravitationally with dark matter. An extension to this picture is interacting quintessence (IQ) model where scalar field coupled directly to cold darkmatter. The percentage deviation is studied in IQ model with respect to $\Lambda$CDM for varied values of the interacting parameter W.We investigated the effect of interaction on matter, kaiser and galaxy power spectrums.The deviation in power spectrum increases with interaction on both large and small scales. On small scales, variation is comparatively smaller than on large scale. On large scales, it is due to dark energy perturbation, while it is background evolution that causes a difference on small scale. These variations decreases with increase in redshift. Herein the thawing class of model with linear potential is studied.
Volume 41, 2020
Continuous Article Publishing mode
Since January 2016, the Journal of Astrophysics and Astronomy has moved to Continuous Article Publishing (CAP) mode. This means that each accepted article is being published immediately online with DOI and article citation ID with starting page number 1. Articles are also visible in Web of Science immediately. All these have helped shorten the publication time and have improved the visibility of the articles.
Click here for Editorial Note on CAP Mode