16 - 21 June 2024
Yokohama, Japan
Conference 13093 > Paper 13093-66
Paper 13093-66

DarkNESS CubeSat: development of Skipper CCDs for X-ray astronomy

19 June 2024 • 16:15 - 16:35 Japan Standard Time | Room G414/415, North - 4F


The DarkNESS CubeSat will deploy skipper-CCDs, the most sensitive silicon detectors to date, on a nano-satellite to study the diffuse X-ray background in the Milky Way and search for Dark Matter (DM). DM is an abundant, but invisible, presence in our Universe. It dictates how galaxies were initially formed and influences their dynamics today. The total mass of DM in the universe is known to be five times that of ordinary matter, but its true nature remains elusive, and its identity is one of the biggest questions in science today. We will search for DM by mapping the Galaxy's diffuse X-ray spectrum using an array of skipper-CCDs on a nanosatellite in LEO. This will address the experimental conundrum associated with the observation of an unidentified 3.5~keV X-ray line, potentially produced from the decay of a DM particle. The mission will also perform a direct search for low-mass, strongly-interacting DM candidate particles that would not penetrate the Earth’s atmosphere and are therefore inaccessible to terrestrial DM experiments


Fermi National Accelerator Lab. (United States)
Estrada completed his Ph.D. at the University of Rochester working at the DZero experiment in Fermilab. As a scientist at FNAL, Estrada worked on the development of the Dark Energy Camera for the Dark Energy Survey, and is a collaborator of the SENSEI dark matter experiment and leads the OSCURA projectdeveloping a digital camera to search for low-mass dark matter.
Fermi National Accelerator Lab. (United States)