Simply – how do stars and planets form?
Greene 2001 Greene, Th. 2001: “"Stellar embryology" takes a step forward with the first detailed look at the youngest Sun-like stars”, American Scientist, 4, 316
How can I tell if a star might have an accretion disk?
Look at the star in Vizier to see the Spectral Energy Distribution (SED) of the continuum. The spectrum of all stars is approximately a black body (see https://lco.global/spacebook/light/black-body-radiation/). The shape [...]