Publications (9)
Dark matter line emission constraints from NuSTAR observations of the Bullet Cluster
S. Riemer-Sørensen, D. Wik, G. Madejski +10
Line emission from dark matter is well motivated for some candidates e.g. sterile neutrinos. We present the first search for dark matter line emission in the 3-80keV range in a poi…
Hard X-ray emitting Active Galactic Nuclei selected by the Chandra Multi-wavelength Project
J. Silverman, P. Green, W. Barkhouse +13
We present X-ray and optical analysis of 188 AGN identified from 497 hard X-ray (f (2.0-8.0 keV) > 2.7x10^-15 erg cm^-2 s^-1) sources in 20 Chandra fields (1.5 deg^2) forming part…
Identification of the Hard X-ray Source Dominating the E > 25 keV Emission of the Nearby Galaxy M31
M. Yukita, A. Ptak, A. E. Hornschemeier +15
We report the identification of a bright hard X-ray source dominating the M31 bulge above 25 keV from a simultaneous NuSTAR-Swift observation. We find that this source is the count…
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…
StrayCats II: An Updated Catalog of NuSTAR Stray Light Observations
R. M. Ludlam, B. W. Grefenstette, M. C. Brumback +8
We present an updated catalog of StrayCats (a catalog of NuSTAR stray light observations of X-ray sources) that includes nearly 18 additional months of observations. StrayCats v2 h…
Extending the baseline for SMC X-1's spin and orbital behavior with NuSTAR stray light
McKinley C. Brumback, B. W. Grefenstette, D. J. K. Buisson +10
StrayCats, the catalog of NuSTAR stray light observations, contains data from bright X-ray sources that fall within crowded source regions. These observations offer unique addition…
A Focused, Hard X-ray Look at Arp 299 with NuSTAR
A. Ptak, A. Hornschemeier, A. Zezas +19
We report on simultaneous observations of the local starburst system Arp 299 with NuSTAR and Chandra, which provides the first resolved images of this galaxy up to energies of ~ 45…
Neutron Stars and Black Holes in the Small Magellanic Cloud: The SMC NuSTAR Legacy Survey
M. Lazzarini, B. F. Williams, A. E. Hornschemeier +18
We present a source catalog from the first deep hard X-ray ( keV) survey of the Small Magellanic Cloud (SMC), the NuSTAR Legacy Survey of the SMC. We observed three fields, f…
Young Accreting Compact Objects in M31: The Combined Power of NuSTAR, Chandra, and Hubble
M. Lazzarini, A. E. Hornschemeier, B. F. Williams +11
We present 15 high mass X-ray binary (HMXB) candidates in the disk of M31 for which we are able to infer compact object type, spectral type of the donor star, and age using multiwa…