A FOCUSED, HARD X-RAY LOOK AT ARP 299 WITHNuSTAR

A Focused, Hard X-ray Look at Arp 299 with Nustar

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 keV. Fitting the 3–40 keV spectrum reveals a column density of NH ∼ 4×10 24 cm, characteristic of a Compton-thick AGN, and a 10−30 keV luminosity of 1.2×10 ergs s. The hard X-rays detected by NuSTAR above 10 keV are ...

Chandra Observations of the X-ray Luminous Star-forming Galaxy Merger Arp 299

We report results of a Chandra observation of the X-ray luminous star-forming galaxy Arp299 (NGC3690/IC694). We detect 18 discrete X-ray sources with luminosities above ∼ 10 39 erg s −1 (0.5-8.0 keV band), which contribute ∼ 40% of the total galactic emission in this band. The remaining emission is associated with a diffuse component spatially coincident with regions of widespread star-formatio...

“X-Ray Vision”: Taking a Hard Look at Fuel Sprays and Combustion

“X-Ray Vision”: Taking a Hard Look at Fuel Sprays and Combustion Argonne researchers are collaborating on a close-up study of diesel spray patterns and soot formation using the Advanced Photon Source here at the Laboratory. The APS makes it possible for scientists to examine these phenomena closer than ever before. The knowledge gained could lead to better-performing, loweremission injectors fo...

A Swift BAT Look at Super-Orbital X-ray Binaries

We present the results of a study with the Swift Burst Alert Telescope in the 14 – 195 keV range of the long-term variability of 5 low mass X-ray binaries with reported or suspected super-orbital periods — 4U 1636-536, 4U 1820-303, 4U 1916-053, Cyg X-2 and Sco X-1. No significant periodic modulation was detected around the previously reported values in the 4U 1916-053, Cyg X-2 or Sco X-1 light ...

X-ray imaging: A coherent look at stress.