{"id":191,"date":"2018-03-01T10:03:51","date_gmt":"2018-03-01T09:03:51","guid":{"rendered":"https:\/\/sites-lira.obspm.fr\/helisol\/?p=191"},"modified":"2018-03-01T10:04:25","modified_gmt":"2018-03-01T09:04:25","slug":"soumission-dun-article-calcul-de-lhelicite-magnetique-geometrie-spherique","status":"publish","type":"post","link":"https:\/\/sites-lira.obspm.fr\/helisol\/2018\/03\/01\/soumission-dun-article-calcul-de-lhelicite-magnetique-geometrie-spherique\/","title":{"rendered":"Soumission d’un article sur le calcul de l’h\u00e9licit\u00e9 magn\u00e9tique en g\u00e9ometrie sph\u00e9rique"},"content":{"rendered":"

La plupart des astres ont une forme sph\u00e9rique et notre Soleil ne fait pas exception. L’utilisation d’un syst\u00e8me de coordonn\u00e9e sph\u00e9rique apparait donc comme le plus naturel pour \u00e9tudier ce genre d’objet. Hors jusqu’\u00e0 pr\u00e9sent, les codes de calcul de l’h\u00e9licit\u00e9 magn\u00e9tique ne fonctionnait que dans le syst\u00e8mes de coordonn\u00e9es cart\u00e9sien. Kostas Moraitis, postdoctorant dans le cadre du projet H\u00e9liSol vient de d\u00e9velopper une m\u00e9thode et des routines num\u00e9riques permettant de calculer correctement l’h\u00e9licit\u00e9 magn\u00e9tique (relative) dans le rep\u00e8re naturel de notre astre.<\/p>\n

Un manuscrit portant sur ces travaux vient d’\u00eatre soumis au journal \u00e0 comit\u00e9 de lecture, \u00ab\u00a0Solar Physics<\/a>\u00ab\u00a0. Dans cet article, nous pr\u00e9sentons cette m\u00e9thode et pr\u00e9sentons des applications de cette m\u00e9thode \u00e0 des cas semi-analytiques et \u00e0 des reconstructions du champ magn\u00e9tique solaire obtenues \u00e0 partir d’observations. Nous testons ainsi les performances de la m\u00e9thode, nous assurant ainsi de son bon fonctionnement et montrons comment il am\u00e9liore la mesure de l’h\u00e9licit\u00e9 par rapport aux m\u00e9thodes utilis\u00e9s pr\u00e9c\u00e9demment.<\/p>\n

\u00ab\u00a0Computation of relative magnetic helicity in spherical coordinates\u00a0\u00bb<\/a>; Moraitis, K.; Pariat,\u00a0E.;<\/strong> Savcheva, A.; Valori,\u00a0G.<\/strong>; Submitted to Solar Physics, 2018.<\/p>\n","protected":false},"excerpt":{"rendered":"

La plupart des astres ont une forme sph\u00e9rique et notre Soleil ne fait pas exception. L’utilisation d’un syst\u00e8me de coordonn\u00e9e sph\u00e9rique apparait donc comme le plus naturel pour \u00e9tudier ce genre d’objet. Hors jusqu’\u00e0 pr\u00e9sent, les codes de calcul de … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-191","post","type-post","status-publish","format-standard","hentry","category-articles"],"yoast_head":"\nSoumission d'un article sur le calcul de l'h\u00e9licit\u00e9 magn\u00e9tique en g\u00e9ometrie sph\u00e9rique - HeliSol<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sites-lira.obspm.fr\/helisol\/2018\/03\/01\/soumission-dun-article-calcul-de-lhelicite-magnetique-geometrie-spherique\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Soumission d'un article sur le calcul de l'h\u00e9licit\u00e9 magn\u00e9tique en g\u00e9ometrie sph\u00e9rique - HeliSol\" \/>\n<meta property=\"og:description\" content=\"La plupart des astres ont une forme sph\u00e9rique et notre Soleil ne fait pas exception. 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