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Future Cosmological Constraints from Fast Radio Bursts
Anthony Walters, Amanda Weltman, B. M. Gaensler +2
We consider the possible observation of Fast Radio Bursts (FRBs) with planned future radio telescopes, and investigate how well the dispersions and redshifts of these signals might…
Conformal inflation with chameleon coupling
Heliudson Bernardo, Renato Costa, Horatiu Nastase +1
We investigate the possibility that the inflaton, in particular in conformal inflation models, is also a chameleon, i.e. that it couples to the energy density of some heavy non-rel…
Model-independent curvature determination with 21cm intensity mapping experiments
Amadeus Witzemann, Philip Bull, Chris Clarkson +3
Recent precision cosmological parameter constraints imply that the spatial curvature of the Universe is essentially dynamically negligible - but only if relatively strong assumptio…
VOEvent Standard for Fast Radio Bursts
Emily Petroff, Leon Houben, Keith Bannister +13
Fast radio bursts are a new class of transient radio phenomena currently detected as millisecond radio pulses with very high dispersion measures. As new radio surveys begin searchi…
Constraining the interaction between dark sectors with future HI intensity mapping observations
Xiaodong Xu, Yin-Zhe Ma, Amanda Weltman
We study a model of interacting dark matter and dark energy, in which the two components are coupled. We calculate the predictions for the 21-cm intensity mapping power spectra, an…
Point Particle Motion in DFT and a Singularity-Free Cosmological Solution
Robert Brandenberger, Renato Costa, Guilherme Franzmann +1
We generalize the action for point particle motion to a double field theory background. After deriving the general equations of motion for these particle geodesics, we specialize t…