Astronomers also refer to them as degenerate dwarfs because theyre really the remnants of stellar cores that contain very dense degenerate matter. Only the hot core of the star remains.

White Dwarf Wikipedia

Could they be red giant stars white dwarfs or neutron stars.

Definition of white dwarf. Theyre small and not very massive hence the dwarf part of their names and they radiate mainly white light. Definition A white dwarf is a star at the very end of its life. A white dwarf also called a degenerate dwarf is a stellar remnant composed mostly of electron-degenerate matter.

Its faint luminosity comes from the emission of stored thermal energy. A very small cooled remnant of white dwarf that emits no detectable light Examples of black dwarf in a Sentence Recent Examples on the Web These positrons would ever-so-slowly. A small star that is not very bright but is very dense contains a lot of matter 2.

White dwarf definition is - a small hot whitish star of low intrinsic brightness usually with a mass approximately equal to that of the sun but with a density many times larger. A white dwarf will. The collapsed remnant core of a low-mass star that has ejected its outer layers and can no longer sustain nuclear fusion.

Key Facts Summary. A white dwarf is what stars like the Sun become after they have exhausted their nuclear fuel. White dwarfs are stars that have burned up all of the hydrogen they once used as nuclear fuel.

White dwarfs are curious objects. A white dwarf is very tiny for a star. This core becomes a very hot white dwarf with a temperature exceeding 100000 Kelvin.

Near the end of its nuclear burning stage this type of star expels most of its outer material creating a planetary nebula. White dwarf stars so called because of the white colour of the first few that were discovered are characterized by a low luminosity a mass on the order of that of the Sun and a radius comparable to that of Earth. A white dwarf is formed when a low-mass star has exhausted all its central nuclear fuel and lost its outer layers as a planetary nebula.

A white dwarf star also called a degenerate dwarf is a stellar core remnant composed mostly out of electron-degenerate matter. Fusion in a stars core produces heat and outward pressure but this pressure is kept in balance by. A small very dense star that is typically the size of a planet.

White dwarf definition a star approximately the size of the earth that has undergone gravitational collapse and is in the final stage of evolution for low-mass stars beginning hot and white and ending cold and dark black dwarf. They are very dense. A white dwarfs mass is comparable to that of the Sun and its volume is comparable to that of the Earth.

The theoretical celestial object that remains after a white dwarf has used up all of its fuel and cooled off completely to a solid mass of extremely dense cold carbon. White dwarf star any of a class of faint stars representing the endpoint of the evolution of intermediate- and low-mass stars. A white dwarf is quite dense its mass may be comparable to that of the Sun while its volume could be comparable to that of Earth.

White dwarf stars are extremely dense having no empty space between atoms but lack the mass to reach the even more extremely dense states of a neutron star or black hole. White-dwarf meaning The collapsed remnant core of a low-mass star that has ejected its outer layers and can no longer sustain nuclear fusion. It occurs when nuclear core fusion ceases in a small- to average-sized main sequence star.

White dwarf stars are extremely dense having no empty space between atoms but lack the mass to reach the even more extremely dense states of a neutron star or black hole.