The NuSTAR Extragalactic Survey: A 1 st Look at the Distant High-Energy X-ray Background D.R. Ballantyne (Georgia Tech) on behalf of M. Ajello, D. Alexander,
44th Rencontres de Moriond Very High Energy Phenomena in the Universe
The NuSTAR Extragalactic Survey: A 1 st Look at the Distant High-Energy X-ray Background