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Black hole masses from X-rays

  • Xin-Lin Zhou (a1) and Roberto Soria (a2)

Abstract

We discuss two methods to estimate black hole (BH) masses using X-ray data only: from the X-ray variability amplitude and from the photon index Γ. The first method is based on the anti-correlation between BH mass and X-ray variability amplitude. Using a sample of AGN with BH masses from reverberation mapping, we show that this method shows small intrinsic scatter. The second method is based on the correlation between Γ and both the Eddington ratio Lbol/LEdd and the bolometric correction Lbol/L2−10keV.

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References

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Keywords

Black hole masses from X-rays

  • Xin-Lin Zhou (a1) and Roberto Soria (a2)

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