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- W2590551526 abstract "We present the 78 ks Chandra observations of the z = 6.4 quasar SDSS J1148+5251. The source is clearly detected in the energy range 0.3–7 keV with 42 counts (with a significance ≳9σ). The X-ray spectrum is best fitted by a power law with photon index Γ = 1.9 absorbed by a gas column density of |${rm N}_{rm H}=2.0^{+2.0}_{-1.5}times {10}^{23},{rm cm}^{-2}$|. We measure an intrinsic luminosity at 2–10 and 10–40 keV equal to ∼ 1.5 × 1045 erg s− 1, comparable with luminous local and intermediate-redshift quasar properties. Moreover, the X-ray to optical power-law slope value (αOX = −1.76 ± 0.14) of J1148 is consistent with the one found in quasars with similar rest-frame 2500 Å luminosity (L2500 ∼ 1032 erg s− 1 Å− 1). Then we use Chandra data to test a physically motivated model that computes the intrinsic X-ray flux emitted by a quasar starting from the properties of the powering black hole and assuming that X-ray emission is attenuated by intervening, metal-rich (Z ≥ Z⊙) molecular clouds (MC) distributed on ∼kpc scales in the host galaxy. Our analysis favours a black hole mass MBH ∼ 3 × 109 M⊙ and a molecular hydrogen mass |$M_{rm H_2}sim 2times {10}^{10} {rm M_{odot }}$|, in good agreement with estimates obtained from previous studies. We finally discuss strengths and limits of our analysis." @default.
- W2590551526 created "2017-03-03" @default.
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- W2590551526 date "2017-02-23" @default.
- W2590551526 modified "2023-10-14" @default.
- W2590551526 title "X-ray spectroscopy of the z = 6.4 quasar SDSS J1148+5251" @default.
- W2590551526 cites W1606855731 @default.
- W2590551526 cites W1613124003 @default.
- W2590551526 cites W1667633874 @default.
- W2590551526 cites W1835527803 @default.
- W2590551526 cites W1844333606 @default.
- W2590551526 cites W1851199749 @default.
- W2590551526 cites W1853159916 @default.
- W2590551526 cites W1882938068 @default.
- W2590551526 cites W1892748462 @default.
- W2590551526 cites W1921256341 @default.
- W2590551526 cites W1931688456 @default.
- W2590551526 cites W1965372241 @default.
- W2590551526 cites W1965713361 @default.
- W2590551526 cites W1967440647 @default.
- W2590551526 cites W1967833739 @default.
- W2590551526 cites W1971289750 @default.
- W2590551526 cites W1972289971 @default.
- W2590551526 cites W1979115990 @default.
- W2590551526 cites W1984823803 @default.
- W2590551526 cites W1987319691 @default.
- W2590551526 cites W1989095107 @default.
- W2590551526 cites W1990384184 @default.
- W2590551526 cites W1998392974 @default.
- W2590551526 cites W2003340794 @default.
- W2590551526 cites W2004302169 @default.
- W2590551526 cites W2009352072 @default.
- W2590551526 cites W2017396100 @default.
- W2590551526 cites W2022115999 @default.
- W2590551526 cites W2036319176 @default.
- W2590551526 cites W2040014264 @default.
- W2590551526 cites W2040222334 @default.
- W2590551526 cites W2040503929 @default.
- W2590551526 cites W2053841971 @default.
- W2590551526 cites W2054131667 @default.
- W2590551526 cites W2058302841 @default.
- W2590551526 cites W2060383866 @default.
- W2590551526 cites W2076025692 @default.
- W2590551526 cites W2077534269 @default.
- W2590551526 cites W2081152942 @default.
- W2590551526 cites W2086583767 @default.
- W2590551526 cites W2088375762 @default.
- W2590551526 cites W2088772258 @default.
- W2590551526 cites W2097198663 @default.
- W2590551526 cites W2104291306 @default.
- W2590551526 cites W2112028701 @default.
- W2590551526 cites W2114132129 @default.
- W2590551526 cites W2115022808 @default.
- W2590551526 cites W2119439775 @default.
- W2590551526 cites W2124219338 @default.
- W2590551526 cites W2126048403 @default.
- W2590551526 cites W2129867880 @default.
- W2590551526 cites W2134050590 @default.
- W2590551526 cites W2137370119 @default.
- W2590551526 cites W2146318694 @default.
- W2590551526 cites W2147181541 @default.
- W2590551526 cites W2155421027 @default.
- W2590551526 cites W2161480792 @default.
- W2590551526 cites W2165243946 @default.
- W2590551526 cites W2166911340 @default.
- W2590551526 cites W2394912989 @default.
- W2590551526 cites W2493321103 @default.
- W2590551526 cites W2618557103 @default.
- W2590551526 cites W2899497983 @default.
- W2590551526 cites W2922503851 @default.
- W2590551526 cites W2949111658 @default.
- W2590551526 cites W2951911578 @default.
- W2590551526 cites W2953014624 @default.
- W2590551526 cites W3098439506 @default.
- W2590551526 cites W3099337187 @default.
- W2590551526 cites W3099428329 @default.
- W2590551526 cites W3099723478 @default.
- W2590551526 cites W3100023310 @default.
- W2590551526 cites W3100657090 @default.
- W2590551526 cites W3101110142 @default.
- W2590551526 cites W3101787820 @default.
- W2590551526 cites W3102104667 @default.
- W2590551526 cites W3102940000 @default.
- W2590551526 cites W3103330033 @default.
- W2590551526 cites W3103428888 @default.
- W2590551526 cites W3103442925 @default.
- W2590551526 cites W3103575933 @default.