Direct First Parker Solar Probe Observation of the Interaction of Two Successive Interplanetary Coronal Mass Ejections in 2020 November

• Autores: Nieves Chinchilla, Teresa; Alzate, Nathalia; Cremades Fernandez, Maria Hebe; Rodríguez García, Laura; Santos, Luiz F. G. Dos; Narock, Ayris; Xie, Hong; Szabo, Adam; Palmerio, Erika; Krupar, Vratislav; Pulupa, Marc; Lario, David; Stevens, Michael L.; Wilson, Lynn B.; Kwon, Ryun Young; Mays, M. Leila; St. Cyr, O. Chris; Hess, Phillip; Reeves, Katharine K.; Seaton, Daniel B.; Niembro, Tatiana; Bale, Stuart D.; Kasper, Justin C.
• Año de publicación: 2022
• Idioma: inglés
• Tipo de recurso: artículo
• Materia: CORONAL MASS EJECTIONS; SOLAR WIND; INTERPLANETARY PHYSICS
• Institución: Consejo Nacional de Investigaciones Científicas y Técnicas

We investigate the effects of the evolutionary processes in the internal magnetic structure of two interplanetary coronal mass ejections (ICMEs) detected in situ between 2020 November 29 and December 1 by the Parker Solar Probe (PSP). The sources of the ICMEs were observed remotely at the Sun in EUV and subsequently tracked to their coronal counterparts in white light. This period is of particular interest to the community as it has been identified as the first widespread solar energetic particle event of solar cycle 25. The distribution of various solar and heliospheric-dedicated spacecraft throughout the inner heliosphere during PSP observations of these largescale magnetic structures enables a comprehensive analysis of the internal evolution and topology of such structures. By assembling different models and techniques, we identify the signatures of interaction between the two consecutive ICMEs and the implications for their internal structure. We use multispacecraft observations in combination with a remote-sensing forward modeling technique, numerical propagation models, and in situ reconstruction techniques. The outcome, from the full reconciliations, demonstrates that the two coronal mass ejections (CMEs) are interacting in the vicinity of the PSP. Thus, we identify the in situ observations based on the physical processes that are associated with the interaction and collision of both CMEs. We also expand the flux rope modeling and in situ reconstruction technique to incorporate the aging and expansion effects in a distorted internal magnetic structure and explore the implications of both effects in the magnetic configuration of the ICMEs.
Fil: Nieves Chinchilla, Teresa. National Aeronautics and Space Administration; Estados Unidos
Fil: Alzate, Nathalia. Adnet Systems, Inc.; Estados Unidos. National Aeronautics and Space Administration; Estados Unidos
Fil: Cremades Fernandez, Maria Hebe. Universidad Tecnológica Nacional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Rodríguez García, Laura. Universidad de Alcalá; España
Fil: Santos, Luiz F. G. Dos. State University of Colorado at Boulder; Estados Unidos
Fil: Narock, Ayris. Adnet Systems, Inc.; Estados Unidos. National Aeronautics and Space Administration; Estados Unidos
Fil: Xie, Hong. Catholic University Of America; Estados Unidos. National Aeronautics and Space Administration; Estados Unidos
Fil: Szabo, Adam. National Aeronautics and Space Administration; Estados Unidos
Fil: Palmerio, Erika. University of California; Estados Unidos
Fil: Krupar, Vratislav. National Aeronautics and Space Administration; Estados Unidos. University of Maryland; Estados Unidos
Fil: Pulupa, Marc. University of California at Berkeley; Estados Unidos
Fil: Lario, David. National Aeronautics and Space Administration; Estados Unidos
Fil: Stevens, Michael L.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Wilson, Lynn B.. National Aeronautics and Space Administration; Estados Unidos
Fil: Kwon, Ryun Young. Korea Astronomy And Space Science Institute; Corea del Sur
Fil: Mays, M. Leila. National Aeronautics and Space Administration; Estados Unidos
Fil: St. Cyr, O. Chris. National Aeronautics and Space Administration; Estados Unidos
Fil: Hess, Phillip. Spece Sciences División. Naval Research Laboratory; Estados Unidos
Fil: Reeves, Katharine K.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Seaton, Daniel B.. State University of Colorado at Boulder; Estados Unidos. Space Science And Engineering Division; Estados Unidos
Fil: Niembro, Tatiana. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Bale, Stuart D.. University of California at Berkeley; Estados Unidos
Fil: Kasper, Justin C.. Bwx Technologies, Inc; Estados Unidos. University of Michigan; Estados Unidos