On the relationship between black hole mass and X-ray variability amplitude in the low-mass regime of active galactic nuclei
2014 ◽
Vol 10
(S312)
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pp. 73-74
AbstractRecent studies of active galactic nuclei (AGN) found a statistical inverse scaling between the X-ray normalized excess variance σrms2 (variability amplitude) and the black hole mass spanning over MBH = 106 − 109M⊙. We present a study of this relation by including AGN with MBH = 105 − 106M⊙. It is found that the relation is no longer a simple extrapolation of the known inverse proportion, but starts to flatten around 106M⊙. This behavior can be understood by the shape of the power spectrum density of AGN and its dependence on the black hole mass.
2010 ◽
Vol 710
(1)
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pp. 16-23
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2004 ◽
Vol 350
(2)
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pp. L26-L30
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Keyword(s):
2013 ◽
Vol 431
(3)
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pp. 2441-2452
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Keyword(s):
2021 ◽
Vol 504
(1)
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pp. 428-443