30 citations · 97 across the 12 of their papers we have counts for
Showing 2019Show all
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astro-ph.HE2019★ 8 cited
Effect of accreting tidally disrupted stars on the spin evolution of black holes
Xiaoxia Zhang, Youjun Lu, Zhu Liu
Accretion of tidally disrupted stars (TDSs) is expected to contribute significantly to the growth of massive black holes (MBHs) with mass in galactic centers.…
astro-ph.HE2019★ 9 cited
On the Mean Radiative Efficiency of Accreting Massive Black Holes in AGNs And QSOs
Xiaoxia Zhang, Youjun Lu
Radiative efficiency is an important physical parameter that describes the fraction of accretion material converted to radiative energy for accretion onto massive black holes (MBHs…
astro-ph.HE2019★ 25 cited
On Constraining the Growth History of Massive Black Holes via Their Distribution on the Spin-Mass Plane
Xiaoxia Zhang, Youjun Lu
The spin distribution of massive black holes (MBHs) contains rich information on the MBH growth history. In this paper, we investigate the spin evolution of MBHs by assuming that e…