Sterile neutrinos with masses in the keV range are well-motivated extensions to the
Standard Model that could explain the observed neutrino masses while also making up the …

We present two complementary NuSTAR x-ray searches for keV-scale dark matter decaying
to monoenergetic photons in the Milky Way halo. In the first, we utilize the known intensity …

It was recently understood that if the swampland conjectures are confronted to experiment
they naturally point to a solution of the cosmological hierarchy problem in which the …

We use a combined 1.2 Ms of NuSTAR observations of M31 to search for x-ray lines from
sterile neutrino dark matter decay. For the first time in a NuSTAR analysis, we consistently …

We use NuSTAR observations of the Galactic center to search for x-ray lines from the
radiative decay of sterile neutrino dark matter. Finding no evidence of unknown lines, we set …

We analyze two dedicated NuSTAR observations with exposure∼ 190 ks located∼ 1 0°
from the Galactic plane, one above and the other below, to search for x-ray lines from the …

In the context of Self-Interacting Dark Matter as a solution for the small-scale structure
problems, we consider the possibility that Dark Matter could have been produced without …

Dark matter might be made of “warm” particles, such as sterile neutrinos in the keV mass
range, which can decay into photons through mixing and are consequently detectable by x …

Context. Recent findings of line emission at 3.5 keV in both individual and stacked X-ray
spectra of galaxy clusters have been speculated to have dark matter origin. Aims. If the …

We present the results of the search for decaying dark matter with particle mass in the 6–40
keV range with NuSTAR deep observations of COSMOS and ECDFS empty sky fields. We …