SMALL-SCALE PROPERTIES OF LOW-MASS CLASS 0 PROTOSTARS: DIGGING INTO THE MEMORY OF ACCRETION PROCESSES.

In this lecture, we briefly present the main models currently proposed to describe the collapse of prestellar dense cores and the formation of young Class 0 protostars. An empirical evolutionary sequence for the formation of low-mass stars is described. Then, the typical properties of Class 0 protostars are reviewed and the question of their structure at small scales is adressed through the question of circumstellar disks. [ABSTRACT FROM AUTHOR]