A long hard-X-ray look at the dual active galactic nuclei of M51 with NuSTAR
作者： M. Brightman , M. Baloković , M. Koss , D. M. Alexander , A. Annuar
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摘要: We present a broadband X-ray spectral analysis of the M51 system, including dual active galactic nuclei (AGN) and several off-nuclear point sources. Using deep observation by NuSTAR, new high-resolution coverage M51b Chandra, latest torus models, we measure intrinsic luminosities AGN in these galaxies. The M51a is found to be Compton thick, both have very low accretion rates ($\lambda_{\rm Edd} 10^{39}$ erg s$^{-1}$ find that turnover below 10 keV most such sources, line with recent results on ultraluminous
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