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28 papers
NuSTAR Observations of Abell 665 and 2146: Constraints on Non-Thermal Emission
Randall Rojas Bolivar, Daniel Wik, Ayşegül Tümer +11
Observations from past missions such as RXTE and Beppo-SAX suggested the presence of inverse Compton (IC) scattering at hard X-ray energies within the intracluster medium of some m…
The NuSTAR, XMM-Newton, and Suzaku view of A3395 at the intercluster filament interface
Aysegul Tumer, Daniel R. Wik, Massimo Gaspari +4
Galaxy clusters are the largest virialized objects in the universe. Their merger dynamics and their interactions with the cosmic filaments that connect them are important for our u…
NuSTAR Observations of Abell 2163: Constraints on Non-thermal Emission
Randall Rojas Bolivar, Daniel Wik, Simona Giacintucci +4
Since the first non-thermal reports of inverse Compton (IC) emission from the intracluster medium (ICM) of galaxy clusters at hard X-ray energies, we have yet to unambiguously conf…
The NuSTAR Hard X-ray Survey of the Norma Arm Region
Francesca M. Fornasini, John A. Tomsick, JaeSub Hong +32
We present a catalog of hard X-ray sources in a square-degree region surveyed by NuSTAR in the direction of the Norma spiral arm. This survey has a total exposure time of 1.7 Ms, a…
The distribution of radioactive Ti in Cassiopeia A
Brian W. Grefenstette, Chris L. Fryer, Fiona A. Harrison +28
The distribution of elements produced in the inner-most layers of a supernova explosion is a key diagnostic for studying the collapse of massive stars. Here we present the results…
First NuSTAR observations of the BL Lac - type blazar PKS~2155-304: constraints on the jet content and distribution of radiating particles
G. M. Madejski, K. Nalewajko, K. K. Madsen +35
We report the first hard X-ray observations with NuSTAR of the BL Lac type blazar PKS 2155-304, augmented with soft X-ray data from XMM-Newton and gamma-ray data from the Fermi Lar…