We describe ongoing searches for intermediate-mass black holes with M BH≈ 10–105 M⊙.
We review a range of search mechanisms, both dynamical and those that rely on accretion …

Intermediate-mass black holes (IMBHs), with masses in the range 1 0 0–1 0 6 M⊙, are the
link between stellar-mass BHs and supermassive BHs (SMBHs). They are thought to be the …

Accretion disks around supermassive black holes in active galactic nuclei produce
continuum radiation at ultraviolet and optical wavelengths. Physical processes in the …

The radius–luminosity () relationship of active galactic nuclei (AGNs) established by the
reverberation mapping (RM) observations has been widely used as a single-epoch black …

We present a sample of 40 active galactic nucleus (AGN) in dwarf galaxies at redshifts z≲
2.4. The galaxies are drawn from the Chandra COSMOS-Legacy survey as having stellar …

As one paper in a series reporting on a large reverberation mapping campaign of super-
Eddington accreting massive black holes (SEAMBHs) in active galactic nuclei (AGNs), we …

We present the first results from a reverberation-mapping campaign undertaken during the
first half of 2012, with additional data on one active galactic nucleus (AGN)(NGC 3227) from …

We present the first results from an optical reverberation mapping campaign executed in
2014 targeting the active galactic nuclei (AGNs) MCG+ 08-11-011, NGC 2617, NGC 4051 …

We present the results of a systematic, broadband X-ray spectral analysis of nearby active
galactic nuclei (AGNs) with the X-ray clumpy torus model (XCLUMPY). By adding 16 AGNs …

Reverberation mapping measurements have been used to constrain the relationship
between the size of the broad-line region and luminosity of active galactic nuclei (AGN). This …