THE HARD X-RAY EMISSION OF GALAXIES THAT DO NOT HOST AN ACTIVE SUPERMASSIVE BLACK HOLES IS DOMINATED BY X-RAY BINARIES (XRBS) WHICH CONSIST OF A NEUTRON STAR (NS) OR BLACK HOLE (BH) ACCRETING MATERIAL FROM A STELLAR COMPANION.
$65,077FY2020National Aeronautics and Space AdministrationNASA
Smithsonian Institution, Washington DC