4 papers
Determining the average prompt-fission-neutron multiplicity for Pu(,) via a Pu(,) surrogate reaction
B. S. Wang, J. T. Burke, O. A. Akindele +7
The average prompt-fission-neutron multiplicity is of significance in the areas of nuclear theory, nuclear nonproliferation, and nuclear energy. In this work, the surrogate…
First observation of low-energy γ-ray enhancement in the rare-earth region
A. Simon, M. Guttormsen, A. C. Larsen +14
The γ-ray strength function and level density in the quasi-continuum of 151,153Sm have been measured using BGO shielded Ge clover detectors of the STARLiTeR system. The Compton shi…
Multiwavelength Study of Quiescent States of Mrk 421 with Unprecedented Hard X-Ray Coverage Provided by NuSTAR in 2013
M. Baloković, D. Paneque, G. Madejski +305
We present coordinated multiwavelength observations of the bright, nearby BL Lac object Mrk 421 taken in 2013 January-March, involving GASP-WEBT, Swift, NuSTAR, Fermi-LAT, MAGIC, V…
The NuSTAR Extragalactic Surveys: The Number Counts of Active Galactic Nuclei and the Resolved Fraction of the Cosmic X-ray Background
F. A. Harrison, J. Aird, F. Civano +41
We present the 3-8 keV and 8-24 keV number counts of active galactic nuclei (AGN) identified in the NuSTAR extragalactic surveys. NuSTAR has now resolved 33-39% of the X-ray backgr…