178 citations · 543 across the 28 of their papers we have counts for
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astro-ph.CO2019★ 29 cited
Evaporating primordial black holes as varying dark energy
Savvas Nesseris, Domenico Sapone, Spyros Sypsas
If light enough primordial black holes (PBH) account for dark matter, then its density decreases with time as they lose mass via Hawking radiation. We show that this time-dependenc…
astro-ph.CO2019★ 12 cited
Non-Gaussian CMB and LSS statistics beyond polyspectra
Gonzalo A. Palma, Bruno Scheihing Hitschfeld, Spyros Sypsas
Cosmic inflation may have led to non-Gaussian initial conditions that cannot be fully parametrised by 3- and/or 4-point functions. In this work, we discuss various strategies to se…