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In accounting, an accretion expense is a periodic expense recognized when updating the present value of a balance sheet liability, which has arisen from a company's obligation to perform a duty in the future, and is being measured by using a discounted cash flows ("DCF") approach. [1]
By this time, the forming star has already accreted much of its mass; the total mass of the disk and remaining envelope does not exceed 10–20% of the mass of the central YSO. [11] When the lower-mass star in a binary system enters an expansion phase, its outer atmosphere may fall onto the compact star, forming an accretion disk
Accretion (astrophysics), the formation of planets and other bodies by collection of material through gravity Accretion (meteorology), the process by which water vapor in clouds forms water droplets around nucleation sites
Oceanic-continental convergence and creation of accretionary wedge Stages of accretion through time with accretionary wedge and volcanic island arc. In geology, accretion is a process by which material is added to a tectonic plate at a subduction zone, frequently on the edge of existing continental landmasses.
Accretion disk jets: Why do the disks surrounding certain objects, such as the nuclei of active galaxies, emit jets along their polar axes? These jets are invoked by astronomers to do everything from getting rid of angular momentum in a forming star to reionizing the universe (in active galactic nuclei), but their origin is still not well understood.
Potentially, a white dwarf can generate multiple novae over time as additional hydrogen continues to accrete onto its surface from its companion star. Where this repeated flaring is observed, the object is called a recurrent nova. An example is RS Ophiuchi, which is known to have flared seven times (in 1898, 1933, 1958, 1967, 1985, 2006, and 2021).
In finance, the term accretion refers to a positive change in value following a transaction; it is applied in several contexts.. When trading in bonds, accretion is the capital gain expected when a bond is bought at a discount to its par value, [1] given that, it is expected to mature at par.
Small planetesimals accrete pebbles that are drifting past them at the relative velocity of the gas. Those pebbles with stopping times similar to the planetesimal's Bondi time are accreted from within its Bondi radius. In this context the Bondi radius is defined as the distance at which an object approaching a planetesimal at the relative ...