094015

A substantial fraction of accreting IMBHs show suppressed X-ray emissioncompared to the expectation from the active galactic nuclei (AGNs) accretiondisk-corona connection. They also show unusally strong X-ray variability. Wepropose a systematic XMM-Newton survey (8-25 ks exposures) of the 13 extremelyX-ray weak (by factors of >10) accreting IMBHs selected from previous Chandrasnapshot coverage. We aim to identify large-amplitude X-ray variability andcharacterize X-ray spectral properties. We will determine whether absorptionfrom clumpy disk wind associated with super-Eddington accretion is responsiblefor the extreme X-ray weakness and X-ray variability and thus to unify theseIMBHs and super-Eddington accreting AGNs under the same physical scenario. [truncated! Please see actual data for full text]