130 citations · 2.3k across the 127 of their papers we have counts for
23 papers · 1 filter
Constraints on light dark matter particles using white dwarf stars
Grigoris Panotopoulos, Ilídio Lopes
We report constraints on the nucleon-dark matter particle cross section using the internal luminosity of observed white dwarf stars in the globular cluster Messier 4. Our results c…
White dwarf cooling via gravity portals
Grigoris Panotopoulos, Ilídio Lopes
We investigate the impact of gravity portal to properties of white dwarfs, such as equation-of-state as well as cooling time. We find that the interaction between dark matter spin-…
The dark matter effect on realistic equation of state in neutron stars
Grigoris Panotopoulos, Ilidio Lopes
In this work we apply relativistic mean-field theory in neutron stars assuming that fermionic dark matter is trapped inside the star and interacts directly with neutrons by exchang…
Constraining the parameter space of branon dark matter using white dwarf stars
Grigoris Panotopoulos, Ilidio Lopes
In the present work we study the branon dark matter particles impact on compact objects, and we provide the first constraints of the parameter space using white dwarf stars. The br…
Nonminimal GUT inflation after Planck results
Grigoris Panotopoulos
In the present work we study GUT Coleman-Weinberg inflation with a nonminimal coupling to gravity. In this kind of model one usually finds that either the nonminimal coupling is la…
Proceedings of the first workshop on Flavor Symmetries and consequences in Accelerators and Cosmology (FLASY2011)
M. Hirsch, D. Meloni, S. Morisi +43
The main goals of the first "Workshop on FLAvor SYmmetries and consequences in accelerators and cosmology" (FLASY) was to summarize the theoretical status of flavor symmetries, bri…