{"id":2519,"date":"2023-01-04T08:56:36","date_gmt":"2023-01-04T07:56:36","guid":{"rendered":"https:\/\/stel.asu.cas.cz\/cs\/?p=2519"},"modified":"2023-01-24T17:04:11","modified_gmt":"2023-01-24T16:04:11","slug":"pozorovani-a-modelovani-asymetrie-spektralnich-car-ve-hvezdne-erupci","status":"publish","type":"post","link":"https:\/\/stel.asu.cas.cz\/cs\/2023\/01\/04\/pozorovani-a-modelovani-asymetrie-spektralnich-car-ve-hvezdne-erupci\/","title":{"rendered":"Pozorov\u00e1n\u00ed a modelov\u00e1n\u00ed asymetrie spektr\u00e1ln\u00edch \u010dar ve hv\u011bzdn\u00e9 erupci"},"content":{"rendered":"\n<p>Astronomov\u00e9 z&nbsp;ASU se zab\u00fdvali pozorov\u00e1n\u00edm trpasli\u010d\u00ed hv\u011bzdy <strong>AD Leonis<\/strong>, kter\u00e1 je zn\u00e1ma svoji v\u00fdznamnou <strong>erup\u010dn\u00ed aktivitou<\/strong>. Koordinovali pozorovac\u00ed kampa\u0148 a&nbsp;z\u00edskali v\u00fdvoj spektra v&nbsp;okol\u00ed vod\u00edkov\u00e9 \u010d\u00e1ry H\u03b1 b\u011bhem prob\u00edhaj\u00edc\u00ed erupce. Ve spektrech se uk\u00e1zala v\u00fdznamn\u00e1 \u010derven\u00e1 asymetrie sv\u011bd\u010d\u00edc\u00ed pro pohyb l\u00e1tky z&nbsp;vy\u0161\u0161\u00ed atmosf\u00e9ry hv\u011bzdy do ni\u017e\u0161\u00edch vrstev. Auto\u0159i zkonstruovali geometrick\u00fd model s&nbsp;c\u00edlem tuto asymetrii vysv\u011btlit.&nbsp;<\/p>\n\n\n\n<p>AD Leonis je pom\u011brn\u011b jasnou hv\u011bzdou, tak\u017ee je v dosahu i men\u0161\u00edch amat\u00e9rsk\u00fdch p\u0159\u00edstroj\u016f, co\u017e Petr Heinzel se sv\u00fdm studentem Ji\u0159\u00edm Wollmannem a kolegou Petrem Kab\u00e1them ze Stel\u00e1rn\u00edho odd\u011blen\u00ed ASU vyu\u017eili pro z\u00edsk\u00e1n\u00ed kvalitn\u00edch fotometrick\u00fdch dat pozorovateli <strong>Sekce prom\u011bnn\u00fdch hv\u011bzd a exoplanet<\/strong> <strong>\u010cesk\u00e9 astronomick\u00e9 spole\u010dnosti<\/strong>. Jasnost hv\u011bzdy tak\u00e9 garantuje mo\u017enost po\u0159\u00edzen\u00ed spektra s vysok\u00fdm rozli\u0161en\u00edm pomoc\u00ed echelletov\u00e9ho spektrografu nap\u00e1jen\u00e9ho <strong>Perkov\u00fdm dvoumetrov\u00fdm dalekohledem ASU v Ond\u0159ejov\u011b<\/strong>. Ob\u011b \u010dinnosti byly spojeny ve t\u0159ech pozorovac\u00edch kampan\u00edch, kter\u00e9 prob\u00edhaly na ja\u0159e rok\u016f 2019, 2020 a 2021. Kampan\u011b byly \u00fasp\u011b\u0161n\u00e9 a poda\u0159ilo se p\u0159i nich z\u00edskat kvalitn\u00ed materi\u00e1l pro studium vlastnost\u00ed erupc\u00ed na t\u00e9to hv\u011bzd\u011b.<\/p>\n\n\n\n<p>Podrobnosti naleznete v na webu ASU.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Odkazy a kontakty:<\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>\u010dl\u00e1nek na webu ASU: <a rel=\"noreferrer noopener\" href=\"https:\/\/www.asu.cas.cz\/articles\/2042\/19\/na-cem-pracujeme-pozorovani-a-modelovani-asymetrie-spektralnich-car-ve-hvezdne-erupci\" target=\"_blank\">Na \u010dem pracujeme: Pozorov\u00e1n\u00ed a&nbsp;modelov\u00e1n\u00ed asymetrie spektr\u00e1ln\u00edch \u010dar ve hv\u011bzdn\u00e9 erupci<\/a> (M. \u0160vanda)<\/li><li>v\u011bdeck\u00e1 pr\u00e1ce: J. Wollmann, P. Heinzel a&nbsp;P. Kab\u00e1th, <em>Observations and modeling of spectral line asymmetries in stellar flares<\/em>, Astronomy &amp; Astrophysics v&nbsp;tisku, preprint <a rel=\"noreferrer noopener\" href=\"https:\/\/arxiv.org\/abs\/2211.07402\" target=\"_blank\">arXiv:2211.07402<\/a><\/li><li>Kontakty: prof. RNDr. Petr Heinzel, DrSc. (pheinzel@asu.cas.cz), Mgr. Ji\u0159\u00ed Wollmann (jiri.wollmann@asu.cas.cz), <a href=\"https:\/\/stel.asu.cas.cz\/cs\/vyzkum-extrasolarnich-planet\/lide\/#kabath\">Petr Kab\u00e1th<\/a><\/li><\/ul>\n\n\n\n<p> <\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Astronomov\u00e9 z&nbsp;ASU se zab\u00fdvali pozorov\u00e1n\u00edm trpasli\u010d\u00ed hv\u011bzdy AD Leonis, kter\u00e1 je zn\u00e1ma svoji v\u00fdznamnou erup\u010dn\u00ed aktivitou. Koordinovali pozorovac\u00ed kampa\u0148 a&nbsp;z\u00edskali v\u00fdvoj spektra v&nbsp;okol\u00ed vod\u00edkov\u00e9 \u010d\u00e1ry<\/p>\n","protected":false},"author":1,"featured_media":2522,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32,36,43],"tags":[],"class_list":["post-2519","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novinky","category-oddeleni","category-perek-2m"],"_links":{"self":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts\/2519","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/comments?post=2519"}],"version-history":[{"count":3,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts\/2519\/revisions"}],"predecessor-version":[{"id":2523,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts\/2519\/revisions\/2523"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/media\/2522"}],"wp:attachment":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/media?parent=2519"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/categories?post=2519"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/tags?post=2519"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}