The phrase "accretion rate" refers to the speed or rate at which something gathers or accumulates. It is used to describe how quickly a substance or material grows, builds up, or adds on to something else. Full definition
We present models for two objects, with mass accretion rates differing by almost two orders of magni... ▽ More We discuss the importance of accretion in calculating disk models for young stellar objects. (arxiv.org)
During the low accretion rate epoch we also observe lower fluxes at both far UV (FUV) and IR wavelengths, which trace molecular gas and dust in the disk, respectively. (arxiv.org)
We find that the decline in accretion rate is caused by lower densities of material in the accretion flows, as opposed to a lower surface coverage of the accretion columns. (arxiv.org)