Matching Temporal Signatures of Solar Features to Their Corresponding Solar-Wind Outflows

• DOI: 10.1007/s11207-021-01813-5
• Publication Date: 2021-04-16T15:23:54Z
• Authors: D. de Pablos; D. M. Long; C. J. Owen; G. Valori; G. Nicolaou; L. K. Harra
• Keywords: Heliosphere; Corona (planetary geology); Coronal hole; Solar observatory

Abstract The role of small-scale coronal eruptive phenomena in the generation and heating solar wind remains an open question. Here, we investigate played by jets forming testing whether temporal variations associated with jetting EUV intensity can be identified outflowing solar-wind plasma. This type comparison is challenging due to inherent differences between remote-sensing observations source in-situ plasma, as well travel time evolution throughout heliosphere. To overcome these, propose a novel algorithm combining signal filtering, two-step ballistic back-mapping, window shifting, Empirical Mode Decomposition. We first validate method using synthetic data, before applying it measurements from Solar Dynamics Observatory Wind spacecraft. enables direct corona parameters, among other potential uses. After application these datasets, find several windows where signatures dynamics found are embedded stream, at significantly earlier than expected simple best-performing parameter being mass flux.