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We search for correlations between the [OI]6300 line, a well-known tracer ofjets and winds in young stars, and stellar/disk/accretion properties in theyoung cluster NGC 2264, aiming to characterize the outflow phenomena that occurwithin the circumstellar environment. We analyzed FLAMES spectra of 184 stars,detecting the [OI]6300 line in 108 CTTSs and 2 Herbig AeBe stars. We identifiedthe main features of this line: a high-velocity component (HVC), and a broadand narrow low-velocity components (BLVC and NLVC). We calculated theirluminosities and kinematic properties, then compared with stellar/accretionparameters. The luminosity of the [OI]6300 line correlates positively with thestellar and accretion luminosity. The HVC is only detected among systems withoptically thick inner disks; the BLVC is found in thick disk systems and fewsystems with anemic disks; and the NLVC is common among systems with all typesof disks. Our BLVCs present blueshifts of up to 50km/s and widths compatiblewith an origin 0.05au-0.5au from the star, while the NLVCs in our sample havewidths compatible with an origin between 0.5au and 5au, in agreement withprevious studies in Taurus. The HVC is found most often among sources withirregular, aperiodic photometric variability, usually associated with accretionin an unstable regime. No stellar properties appear to significantly influenceany property of these jets. We find jet velocities on average similar to thosefound in Taurus. We confirm earlier findings in Taurus which favor an inner MHDdisk wind as the origin of the BLVC, while there is no conclusive evidence thatthe NLVC traces photoevaporative disk winds. The [OI]6300 line profile showssigns of evolving as the disk disperses, with the HVC and BLVC disappearing asthe inner disk becomes optically thin, in support of the scenario of inside-outgas dissipation in the inner disk.

Ejection processes in the young open cluster NGC 2264. A study of the [OI]{\lambda}6300 emission line