Astrophysics (Index)About

compact object

(CO, compact star)
(dense astronomical body such as white dwarf or denser)

A compact object (or compact star, sometimes abbreviated CO) is a general term for small, very massive stellar objects, typically meant to include white dwarfs, neutron stars, black holes, and any other hypothesized exotic dense stars. They are typically stellar remnants, what's left after a star's fusion has run out. The term degenerate star is also used for compact objects that are not black holes.

A compact object merger is a merger of two such stars, with a luminosity potentially 1015 times that of the Sun, and sometimes a source of detectable gravitational waves.

The term central compact object (CCO) is used for a compact object centered within some observed larger object such as a planetary nebula or supernova remnant.

(star type,object type,stellar evolution)
Further reading:

Referenced by pages:
Australian Square Kilometre Array Pathfinder (ASKAP)
binding energy
Bondi radius
common envelope
computational astrophysics
Cooper pair
dynamical friction
extreme mass ratio inspiral (EMRI)
galactic binary
gravitational collapse
GRS 1915+105
gravitational wave (GW)
Kelvin-Helmholtz mechanism
magnetic field
mass ratio (μ)
mass transfer
nanohertz gravitational waves
numerical relativity (NR)
period derivative
quasi-periodic oscillation (QPO)
stellar astronomy
stellar evolution
stellar remnant
tidal tail
Roman Space Telescope (RST)