People who have money in the bank may expect interest to accrue or to grow as the years pass; so there are those who may then refer of the accretion of their capital.2. In astronomy, a process in which matter that is revolving around an astronomical object is gradually pulled in and added to the body's mass as a result of gravity.
3. A process by which a body of rock or a landmass increases in size as a result of material accumulating on or around it resulting from alluvial deposits or water-borne sediments.
2. A process in which many smaller bodies congregate together under the action of forces to produce much larger bodies.
Such a force could be, for example, gravitation.
In losing its initial angular momentum, the hot material descends into the black hole, friction causing it to reach temperatures high enough to produce x-rays.
It is by the accretion ring emission that makes it possible for the presence of the black hole to be inferred.