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20082022
most citedNGC 6240 Supermassive Black Hole Binary dynamical evolution based on Chandra data

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astro-ph2008★ 8 cited

Q2237+0305 in X-rays: spectra and variability with XMM-Newton

E. V. Fedorova, V. I. Zhdanov, C. Vignali +1

X-ray observations of gravitationally lensed quasars may allow us to probe the inner structure of the central engine of a quasar. Observations of Q2237+0305 (Einstein Cross) in X-r…