The phrase
"galaxy center" refers to the central part of a galaxy, where stars, gas, and other celestial objects are concentrated. It is like the heart or core of a galaxy where most of the action and energy is found.
Full definition
It has therefore provided a breakthrough in the detection of black holes
in galaxy centers.
In fact, SMBHs» signature X-ray emissions, which come from an area much larger than the black holes themselves, are often so surprisingly faint that the objects are difficult to distinguish from
their galaxy centers.
The light from most of the region's stars suggested they are moving quickly away from
the galaxy center, which would make sense for items captured in a jet of fast - moving material.
It could take the top prong and be a regular spiral where the arms come right out of
the galaxy center, or it could take the bottom prong and be a barred spiral with the arms starting from the ends of a bar of gas and stars going through the center.
The linear distance from
the galaxy center = -LSB-(2p × (distance to the galaxy) × (angular distance in degrees)-RSB- / 360 °.
The elliptical galaxy's mass = k × (velocity dispersion) 2 × (the distance the stars are from
the galaxy center) / G, where k is a factor that depends on the shape of the galaxy and the angle the galaxy is from Earth.
Keck Observatory's OSIRIS instrument collected data high spatial resolution in
the galaxy centers, and the Gemini Multi-Object Spectrograph (GMOS) collected data for high surface brightness sensitivity out to large radii.
The team wrote in their paper that «a number of physical processes have been proposed to account for the funneling of gas towards
the galaxy centers to feed the AGN.
Their research shows that the ram pressure funnels the gas towards
the galaxy center, feeding the black hole.
«It seems that the central black hole is being fed because some of the gas, rather than being removed, reaches
the galaxy center.»