{"id":2424,"date":"2022-10-21T09:56:53","date_gmt":"2022-10-21T07:56:53","guid":{"rendered":"https:\/\/stel.asu.cas.cz\/cs\/?p=2424"},"modified":"2022-10-21T09:56:53","modified_gmt":"2022-10-21T07:56:53","slug":"dva-nove-odhaleni-pruvodci-vyvinutych-obrich-hvezd","status":"publish","type":"post","link":"https:\/\/stel.asu.cas.cz\/cs\/2022\/10\/21\/dva-nove-odhaleni-pruvodci-vyvinutych-obrich-hvezd\/","title":{"rendered":"Dva nov\u011b odhalen\u00ed pr\u016fvodci vyvinut\u00fdch ob\u0159\u00edch hv\u011bzd"},"content":{"rendered":"\n<p>Astronomov\u00e9 Stel\u00e1rn\u00edho odd\u011blen\u00ed ASU se pod\u00edlej\u00ed na dlouhodob\u00e9m sledov\u00e1n\u00ed rud\u00fdch obr\u016f a hledaj\u00ed u nich pr\u016fvodce. Pr\u00e1ce m\u00e1 prvn\u00ed v\u00fdsledky, astronomov\u00e9 oznamuj\u00ed p\u0159\u00edtomnost hn\u011bd\u00e9ho trpasl\u00edka a men\u0161\u00ed hv\u011bzdy u dvou ze studovan\u00fdch hv\u011bzd.<\/p>\n\n\n\n<p>Marie a Raine Karjalainen ze Stel\u00e1rn\u00edho odd\u011blen\u00ed ASU v roce 2010 za\u010dali s hled\u00e1n\u00edm pr\u016fvodc\u016f ob\u0159\u00edch hv\u011bzd mezi st\u00e1licemi pozorovan\u00fdmi dru\u017eic\u00ed Kepler. U t\u011bchto hv\u011bzd prov\u00e1d\u011bli pozemn\u00ed spektroskopick\u00e1 pozorov\u00e1n\u00ed s c\u00edlem pokr\u00fdt co mo\u017en\u00e1 nejhust\u011bji po co nejdel\u0161\u00ed dobu. Systematicky se t\u00fdm zab\u00fdv\u00e1 asi stovkou hv\u011bzd a k pozorov\u00e1n\u00ed vyu\u017e\u00edv\u00e1 hned n\u011bkolik dalekohled\u016f na sv\u011bt\u011b, v\u010detn\u011b Perkova dalekohledu ASU v Ond\u0159ejov\u011b. Objev prvn\u00edho souputn\u00edka u sledovan\u00fdch hv\u011bzd byl ozn\u00e1men v roce 2017, dal\u0161\u00ed n\u00e1sleduj\u00ed nyn\u00ed. Pozorov\u00e1n\u00ed Perkov\u00fdm dalekohledem v Ond\u0159ejov\u011b byla kalibrov\u00e1na s pomoc\u00ed jodov\u00e9 cely, d\u00edky n\u00ed\u017e jsou z\u00edskan\u00e1 m\u011b\u0159en\u00ed p\u0159esn\u011bj\u0161\u00ed a maj\u00ed men\u0161\u00ed systematick\u00e9 chyby. Krom\u011b popisu hv\u011bzdn\u00fdch syst\u00e9m\u016f je tak p\u0159edstavovan\u00e1 pr\u00e1ce v\u016fbec prvn\u00ed publikac\u00ed, v n\u00ed\u017e byla pou\u017eita m\u011b\u0159en\u00ed proveden\u00e1 v Ond\u0159ejov\u011b s pomoc\u00ed jodov\u00e9 cely.<\/p>\n\n\n\n<p>&#8230; <\/p>\n\n\n\n<p>Podrobn\u011bj\u0161\u00ed informace naleznete v \u010dl\u00e1nku Michala \u0160vandy na webu astronomick\u00e9ho \u00fastavu: <a rel=\"noreferrer noopener\" href=\"https:\/\/www.asu.cas.cz\/articles\/2010\/19\/na-cem-pracujeme-dva-nove-odhaleni-pruvodci-vyvinutych-obrich-hvezd\" target=\"_blank\">Na \u010dem pracujeme: Dva nov\u011b odhalen\u00ed pr\u016fvodci vyvinut\u00fdch ob\u0159\u00edch hv\u011bzd<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"dalsi-informace\">Dal\u0161\u00ed informace<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li><a rel=\"noreferrer noopener\" href=\"https:\/\/www.asu.cas.cz\/articles\/2010\/19\/na-cem-pracujeme-dva-nove-odhaleni-pruvodci-vyvinutych-obrich-hvezd\" target=\"_blank\">Na \u010dem pracujeme: Dva nov\u011b odhalen\u00ed pr\u016fvodci vyvinut\u00fdch ob\u0159\u00edch hv\u011bzd<\/a>, (tiskov\u00e1 zpr\u00e1va ASU; M. \u0160vanda, in Czech)<\/li><\/ul>\n\n\n\n<ul class=\"wp-block-list\"><li>M. Karjalainen, R. Karjalainen a&nbsp;kol., <em>Companions to Kepler giant stars: A&nbsp;long-period eccentric substellar companion to KIC 3526061 and a&nbsp;stellar companion to HD 187878<\/em>, Astronomy &amp; Astrophysics v&nbsp;tisku, preprint <a rel=\"noreferrer noopener\" href=\"https:\/\/arxiv.org\/abs\/2209.11096\" target=\"_blank\">arXiv:2209.11096<\/a><\/li><\/ul>\n\n\n\n<ul class=\"wp-block-list\"><li>Kontakt:&nbsp;<a href=\"https:\/\/stel.asu.cas.cz\/en\/extrasolar-planet-research\/extrasolar-members\/#karjalainen_m\">Mgr. Marie Karjalainen, Ph.D.<\/a><\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Astronomov\u00e9 Stel\u00e1rn\u00edho odd\u011blen\u00ed ASU se pod\u00edlej\u00ed na dlouhodob\u00e9m sledov\u00e1n\u00ed rud\u00fdch obr\u016f a hledaj\u00ed u nich pr\u016fvodce. Pr\u00e1ce m\u00e1 prvn\u00ed v\u00fdsledky, astronomov\u00e9 oznamuj\u00ed p\u0159\u00edtomnost hn\u011bd\u00e9ho trpasl\u00edka<\/p>\n","protected":false},"author":1,"featured_media":2425,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38,32],"tags":[],"class_list":["post-2424","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-exoplanety","category-novinky"],"_links":{"self":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts\/2424","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=2424"}],"version-history":[{"count":1,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts\/2424\/revisions"}],"predecessor-version":[{"id":2426,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/posts\/2424\/revisions\/2426"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/media\/2425"}],"wp:attachment":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/media?parent=2424"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/categories?post=2424"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/tags?post=2424"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}