NGC 4151 as Revealed by NuSTAR and Suzaku
Abstract
We have performed spectral and timing analyses of simultaneous, 150 ks NuSTAR and Suzaku observations of the Seyfert 1.5 galaxy NGC 4151. We characterize and deconvolve the complex absorption, continuum, and reflection spectral features in the broadband (1-80 keV) X-ray emission from the active galactic nucleus (AGN) of NGC 4151. Our results include a near-maximal black hole spin for the supermassive black hole (SMBH) at the center of NGC 4151, a low coronal temperature, and detected variability of the absorber and coronal properties on timescales as short as six hours. These results demonstrate the power of employing NuSTAR in conjunction with lower-energy X-ray observatories such as Suzaku to measure the fundamental physical properties of AGNs and SMBHs with the greatest accuracy and precision ever achieved.
- Publication:
-
American Astronomical Society Meeting Abstracts #223
- Pub Date:
- January 2014
- Bibcode:
- 2014AAS...22343804K