The NuSTAR hard X-ray view on quasars
Abstract
I will present the hard X-ray properties (E∼3-30 keV) of the AGN population seen in the NuSTAR extragalactic survey. In particular, I will highlight the NuSTAR observations of NuSTAR J033202-2746.8, a heavily obscured, radio-loud quasar detected in the Extended Chandra Deep Field South (E-CDF-S). Combining the NuSTAR data, with existing very deep Chandra and XMM-Newton observations, we constrained the broad-band X-ray spectrum of NuSTAR J033202-2746.8; this source is a heavily obscured quasar at redshift z≈2, with N_{H}≈6×10^{23} cm^{-2} and 10-40 keV luminosity L_{X}≈6×10^{44} erg/s. The NuSTAR spectrum shows a significant reflection component (R∼0.6), which was not constrained by previous analyses of Chandra and XMM-Newton data alone. Our results show the importance of NuSTAR in accurately characterising the broad-band spectral properties of quasars out to high redshift.
- Publication:
-
The X-ray Universe 2014
- Pub Date:
- July 2014
- Bibcode:
- 2014xru..confE..60D