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20052022
most citedCygnus X-1 contains a 21-solar mass black hole -- implications for massive star winds

285 citations · 661 across the 14 of their papers we have counts for

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astro-ph2006★ 41 cited

Consistency of the black hole mass determination in AGN from the reverberation and the X-ray excess variance method

M. Nikolajuk, B. Czerny, J. Ziolkowski +1

Values of black hole masses are frequently determined with the help of the reverberation method. This method requires a specific geometrical factor related to the distribution of t…