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dc.contributor.authorMalagón Romero, Alejandroes_ES
dc.contributor.authorTeunissen, J.es_ES
dc.contributor.authorStenbaek-Nielsen, H. C.es_ES
dc.contributor.authorMcHarg, M. G.es_ES
dc.contributor.authorEbert, U.es_ES
dc.contributor.authorLuque, Alejandroes_ES
dc.identifier.citationGeophysical Research Letters 47: e85776 (2020)es_ES
dc.descriptionThis is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.https://creativecommons.org/licenses/by-nc-nd/4.0/es_ES
dc.description.abstractWe investigate the launch of negative upward streamers from sprite glows. This phenomenon is readily observed in high-speed observations of sprites and underlies the classification of sprites into carrot or column types. First, we describe how an attachment instability leads to a sharply defined region in the upper part of the streamer channel. This region has an enhanced electric field, low conductivity and strongly emits in the first positive system of molecular nitrogen. We identify it as the sprite glow. We then show how, in the most common configuration of a carrot sprite, several upward streamers emerge close to the lower boundary of the glow, where negative charge gets trapped and the lateral electric field is high enough. These streamers cut off the current flowing toward the glow and lead to the optical deactivation of the glow above. Finally, we discuss how our results naturally explain angel sprites. ©2019. The Authors.es_ES
dc.description.sponsorshipInformation on how to access the code used to run the simulations as well as the output data analyzed in this study is available in the supporting information. This work was supported by the European Research Council (ERC) under the European Union H2020 program/ERC Grant Agreement 681257. A. Malagon Romero and A. Luque acknowledge financial support from the State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" Award for the Instituto de Astrofisica de Andalucia (SEV-2017-0709). J. Teunissen was supported by postdoctoral fellowship 12Q6117N from Research Foundation-Flanders (FWO). The aircraft observations were sponsored by the Japanese National Broadcasting System, NHK. H. C. Stenbaek-Nielsen and M. G. McHarg were supported by Grants 1104441 and 1201683 from the U.S. National Science Foundation to the University of Alaska Fairbanks and the U.S. Air Force Academy, respectively. The simulation code used for this work is available at this site (https://gitlab.com/MD-CWI-NL/afivo-streamer).The version used for the simulations corresponds to the commit a3e2241fba 15f177b26e79106cef7354cbe09d68. Configuration files as well as the output data are available at this site (https://doi.org/10.5281/zenodo.3478177).es_ES
dc.publisherAmerican Geophysical Uniones_ES
dc.relation.isversionofPublisher's versiones_ES
dc.subjectAngel spritees_ES
dc.subjectCarrot spritees_ES
dc.subjectColumn spritees_ES
dc.subjectUpward streameres_ES
dc.titleOn the Emergence Mechanism of Carrot Spriteses_ES
dc.description.peerreviewedPeer reviewedes_ES
dc.contributor.funderEuropean Research Counciles_ES
dc.contributor.funderMinisterio de Ciencia, Innovación y Universidades (España)es_ES
dc.contributor.funderEuropean Commissiones_ES
dc.contributor.funderResearch Foundation - Flanderses_ES
dc.contributor.funderNippon Hōsō Kyōkaies_ES
dc.contributor.funderNational Science Foundation (US)es_ES
dc.contributor.funderDepartment of Defense (US)es_ES
oprm.item.hasRevisionno ko 0 false*
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