279 citations · 2.4k across the 48 of their papers we have counts for
3 papers · 1 filter
Pulsar Nulling and Vacuum Radio Emission from Axion Clouds
Andrea Caputo, Samuel J. Witte, Alexander A. Philippov +1
Non-relativistic axions can be efficiently produced in in the polar caps of pulsars, resulting in the formation of a dense cloud of gravitationally bound axions. Here, we investiga…
A new source for light dark matter isocurvature in low scale inflation
Andrea Caputo, Michael Geller, Giuseppe Rossi
Light scalar and pseudoscalar particles are compelling dark matter candidates, with a vast running experimental program to discover them. Previous studies have shown that these lig…
Stellar limits on scalars from electron-nucleus bremsstrahlung
Salvatore Bottaro, Andrea Caputo, Georg Raffelt +1
We revisit stellar energy-loss bounds on the Yukawa couplings of baryophilic and leptophilic scalars . The white-dwarf luminosity function yields $g_{\rm B}\lesssi…