200 citations · 1.4k across the 42 of their papers we have counts for
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Rong-Feng Shen, Rodolfo Barniol Duran, Ehud Nakar +1
The nature of ultra-luminous X-ray sources (ULXs) has long been plagued by an ambiguity about whether the central compact objects are intermediate-mass (IMBH, >~ 10^3 M_sun) or ste…