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 …

Despite traditional thinking, an appreciable population of massive black holes (that is, more
massive than stellar-mass black holes) may be lurking in dwarf galaxies. Before the last …

Scaling relations between central black hole (BH) mass and host galaxy properties are of
fundamental importance to studies of BH and galaxy evolution throughout cosmic time. Here …

We present an updated and revised analysis of the relationship between the Hβ broad-line
region (BLR) radius and the luminosity of the active galactic nucleus (AGN). Specifically, we …

We present a sample of 151 dwarf galaxies (10 8.5≲ M⋆≲ 10 9.5 M☉) that exhibit optical
spectroscopic signatures of accreting massive black holes (BHs), increasing the number of …

We present an updated and improved M bh–σ diagram containing 64 galaxies for which M
bh measurements (not just upper limits) are available. Because of new and increased black …

Black hole binaries with extreme (≳ 10 4: 1) or intermediate (∼ 10 2–10 4: 1) mass ratios
are among the most interesting gravitational wave sources that are expected to be detected …

Nearly every massive galaxy harbors a supermassive black hole (SMBH) in its nucleus.
SMBH masses are millions to billions of solar mass, and they correlate with properties of …

We present an expanded sample of low-mass black holes (BHs) found in galactic nuclei.
Using standard virial mass techniques to estimate BH masses, we select from the Fourth …

Using a distance-limited portion of the Sloan Digital Sky Survey (SDSS) Data Release 7, we
have identified 28 active galactic nuclei (AGNs) in nearby ($ d\leqslant 80$ Mpc) low-mass …