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First hard X-ray detection of the non-thermal emission around the Arches cluster: morphology and spectral studies with NuSTAR
Roman A. Krivonos, John A. Tomsick, Franz E. Bauer +15
The Arches cluster is a young, densely packed massive star cluster in our Galaxy that shows a high level of star formation activity. The nature of the extended non-thermal X-ray em…
High-Energy X-rays from J174545.5-285829, the Cannonball: A Candidate Pulsar Wind Nebula Associated with Sgr A East
Melania Nynka, Charles J. Hailey, Kaya Mori +12
We report the unambiguous detection of non-thermal X-ray emission up to 30 keV from the Cannonball, a few-arcsecond long diffuse X-ray feature near the Galactic Center, using the N…
Reversal or no reversal: the evolution of the star formation rate-density relation up to z~1.6
F. Ziparo, P. Popesso, A. Finoguenov +27
We investigate the evolution of the star formation rate (SFR)-density relation in the Extended Chandra Deep Field South (ECDFS) and the Great Observatories Origin Deep Survey (GOOD…
Three New Galactic Center X-ray Sources Identified with Near-Infrared Spectroscopy
Curtis DeWitt, Reba M. Bandyopadhyay, Stephen S. Eikenberry +5
We have conducted a near-infrared spectroscopic survey of 47 candidate counterparts to X-ray sources discovered by the Chandra X-ray Observatory near the Galactic Center (GC). Thou…
The lack of star formation gradients in galaxy groups up to z~1.6
Felicia Ziparo, Paola Popesso, Andrea Biviano +28
In the local Universe, galaxy properties show a strong dependence on environment. In cluster cores, early type galaxies dominate, whereas star-forming galaxies are more and more co…
The NuSTAR Extragalactic Survey: A First Sensitive Look at the High-Energy Cosmic X-ray Background Population
D. M. Alexander, D. Stern, A. Del Moro +31
We report on the first ten identifications of sources serendipitously detected by the NuSTAR to provide the first sensitive census of the cosmic X-ray background (CXB) source popul…