282 citations · 4.3k across the 74 of their papers we have counts for
5 papers · 1 filter
Interpreting DESI 2024 BAO: late-time dynamical dark energy or a local effect?
Ioannis D. Gialamas, Gert Hütsi, Kristjan Kannike +4
We perform fits to DESI, CMB and supernova data to understand the physical origin of the DESI hint for dynamical dark energy. We find that the linear parametrization of the equatio…
Dark Matter Effects On Neutron Star Properties
John Ellis, Gert Hütsi, Kristjan Kannike +3
We study possible effects of a dark matter (DM) core on the maximum mass of a neutron star (NS), on the mass-radius relation and on the NS tidal deformability parameter . We sho…
Search for Dark Matter Effects on Gravitational Signals from Neutron Star Mergers
John Ellis, Andi Hektor, Gert Hütsi +4
Motivated by the recent detection of the gravitational wave signal emitted by a binary neutron star merger, we analyse the possible impact of dark matter on such signals. We show t…
Single Field Double Inflation and Primordial Black Holes
Kristjan Kannike, Luca Marzola, Martti Raidal +1
Within the framework of scalar-tensor theories, we study the conditions that allow single field inflation dynamics on small cosmological scales to significantly differ from that of…
Dynamically Induced Planck Scale and Inflation
Kristjan Kannike, Gert Hütsi, Liberato Pizza +4
Theories where the Planck scale is dynamically generated from dimensionless interactions provide predictive inflationary potentials and super-Planckian field variations. We first s…