Direct Observation of a Large-scale CME Flux Rope Event Arising from an Unwinding Coronal Jet

Coronal mass ejections (CMEs) and coronal jets are two types of common solar eruptive phenomena, which often independently happen at different spatial scales. In this work, we present a stereoscopic observation large-scale CME flux rope arising from an unwinding blowout jet in multipolar complex magnetic system. Based on multi-band observational analysis, find that whole event starts with small filament whose eruption occurs geyser site after series homologous jets. Aided by field extrapolations, it reveals the forms above elongate opposite-polarity interface, where emergence-driven photospheric cancellation repetitive reconnection responsible for those preceding recurrent also contribute to ultimate destabilization. By interacting overlying fields, erupting breaks one its legs results jet. Our estimation suggests around 1.4$-$2.0 turns twist release spire. This prominent transport spire rapidly creates newborn larger-scale base remote site. Soon formation, erupts towards outer coronae causing Earth-directed CME. source region, sets distinct post-flare loops form succession, indicating involves two-stage flare reconnection. work not only real coupling process between activities but provides new hint understanding creation ropes during eruption.