http://arxiv.org/abs/1712.04022
The nature of the most abundant components of the Universe, dark energy and dark matter, is still to be uncovered. I tackle this subject considering a novel cosmological probe: the neutral hydrogen emitted 21cm radiation, observed with the intensity mapping technique. I analyse competitive and realistic dark energy and dark matter models and show how they produce distinctive and detectable effects on the 21cm signal. Moreover, I provide radio telescope forecasts showing how these models will be distinguishable in an unprecedented way.
I. Carucci
Wed, 13 Dec 17
82/84
Comments: 6 pages, 3 figures. Proceedings of the 8th Young Researcher Meeting, Cagliari, May 29 to June 1, 2017. To be published in Journal of Physics: Conference Series (IOP)