A swirling disk of gas and/or dust orbiting a star or black hole. The material within the disk may generate heat from friction and glow.
A flat disk of gas and dust in space that surrounds a newborn star, black hole, or other enormous object that is growing by attracting matter to it with its gravitational field.
A swirling disk of gas and dust orbiting a star or black hole. The material within the disk may generate heat from friction; the hottest accretion disks produce enormous amounts of X-rays. See also: star
A disk of hot gas spiraling into a black hole
A rotating disk of gas surrounding a compact object (such as a neutron star or black hole), formed by material falling inward.
A flattened, roughly circular disk of gas or plasma attracted to a star, black hole, or other massive body, often by mass transfer during binary evolution of stars.
a structure formed by material falling into a gravitational source
A disk of gas that gathers around the centre of a black hole or other point of gravitational attraction.
A disk of gas surrounding a star. The star may be a white dwarf neutron star, or a stellar black hole in a close stellar binary system. In these cases, the material of the accretion disk comes from the nearby companion star of the binary system. Accretion disks may also surround newborn stars or the massive black holes found in the centers of many galaxies.
The whirling disk of gas that form around a compact object such as a white dwarf, neutron star or black hole as matter is drawn in.
A disk of matter spiraling in toward a massive object; the disk shape is the result of conservation of angular momentum.
A relatively flat sheet of dust and gas surrounding a newborn star, a black hole, or any massive object growing in size by attracting material.
the pattern of flow of matter from a normal star to a neutron star or black hole, which is flattened and thus disk-like.
The flattened, pancake-like structure formed by matter that is being drawn gravitationally onto a central star -- such as matter captured from an ordinary stellar companion onto a neutron star or a black hole. As matter drifts inward toward the neutron star or black hole, it is heated up by viscous forces, releasing electromagnetic radiation, including X rays.
A disk of gas that accumulates around a center of gravitational attraction, such as a white dwarf, a neutron star, or a black hole. As the gas spirals in, it becomes hot and emits energy at a variety of wavelengths, including X-ray and radio waves.
A relatively flat, rapidly rotating disk of gas surrounding a black hole, a newborn star, or any massive object that attracts and swallows matter. Accretion disks around stars are expected to contain dust particles and may show evidence of active planet formation. Beta Pictoris is an example of a star known to have an accretion disk.
A disk of gas orbiting a star into which matter flows from a companion star or other celestial object.
Flat disk of matter spiraling down onto the surface of a star or into a black hole. Often, the matter originated on the surface of a companion star in a binary system.
A disk shape formed by gas as it spirals into a black hole.
a disk surrounding a black hole or star in which matter gravitationally falls onto the central object.
a disk of material around an object. The material loses angular momentum in the disk and eventually spirals in to the object (i.e. accretes onto the object.
The disk around a black hole into which infalling gas settles before being swallowed. Friction and magnetic fields in the disk cause the gas to heat and the resulting X-rays can sometimes be observed. How do black holes grow
circular and flattened cloud of gas, orbiting around a star or a black hole, and slowly falling upon it
disk of gas that forms around a massive object as material spirals onto the massive object. Accretion disks around white dwarfs, neutron stars, and black holes form when material is drawn off a nearby normal or giant star. Accretion disks around neutron stars and black holes can be hot enough to radiate X-rays.