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supermasif

Supermasif is a term used in astronomy to denote objects with exceptionally large masses, most often referring to supermassive black holes (SMBHs) that reside at the centers of many galaxies. The term appears in multilingual scientific literature as a direct rendering of "supermassive" and is used to describe both individual black holes and their galactic environments.

Masses of SMBHs range from about one million to several billion solar masses. They influence galactic dynamics

Observational methods include stellar and gas dynamics near the galactic center, reverberation mapping of active galactic

The relationship between SMBHs and their host galaxies is exemplified by the M–sigma relation, which links

See also: Supermassive black hole, Active galactic nucleus, Galaxy evolution.

through
accretion
of
gas
and
feedback
processes
that
can
regulate
star
formation.
SMBHs
are
thought
to
grow
via
accretion
of
gas
and
by
mergers
with
other
black
holes,
and
they
are
believed
to
form
early
in
cosmic
history,
shaping
the
evolution
of
their
host
galaxies.
nuclei,
megamaser
measurements,
and
direct
imaging
of
event
horizons
with
very
long
baseline
interferometry.
Notable
examples
include
the
Milky
Way's
Sgr
A*
and
the
SMBH
in
M87
(M87*),
whose
shadow
was
imaged
by
the
Event
Horizon
Telescope.
black
hole
mass
to
the
velocity
dispersion
of
the
galactic
bulge.
This
and
related
feedback
mechanisms
support
models
of
co-evolution
between
supermasif
objects
and
their
galaxies,
highlighting
their
central
role
in
galactic
structure
and
evolution.