{"id":54880,"date":"2021-05-02T15:27:00","date_gmt":"2021-05-02T12:27:00","guid":{"rendered":"http:\/\/life.karpat.in.ua\/?p=54880"},"modified":"2021-05-01T23:49:02","modified_gmt":"2021-05-01T20:49:02","slug":"a-szomszedos-csillagrendszerben-vilagpusztito-esemeny-tortent","status":"publish","type":"post","link":"https:\/\/life.karpat.in.ua\/?p=54880&lang=hu","title":{"rendered":"A szomsz\u00e9dos csillagrendszerben vil\u00e1gpuszt\u00edt\u00f3 esem\u00e9ny t\u00f6rt\u00e9nt"},"content":{"rendered":"\n

A Proxima Centaurin\u00e1l, a Naphoz legk\u00f6zelebbi csillagn\u00e1l rekordnagys\u00e1g\u00fa kif\u00e9nyesed\u00e9st \u00e9szleltek \u2013 k\u00f6z\u00f6lte az IFL Science tudom\u00e1nyos port\u00e1l. Egy kilenc teleszk\u00f3pb\u00f3l \u00e1ll\u00f3 t\u00e1vcs\u0151h\u00e1l\u00f3zat r\u00f6gz\u00edtette a kozmikus kataklizm\u00e1t.<\/p>\n\n\n\n

\"\"
FORR\u00c1S: NRAO\/S. DAGNELLO<\/figcaption><\/figure>\n\n\n\n

A Proxima Centauri egy v\u00f6r\u00f6s t\u00f6rpecsillag, t\u00f6mege nyolcada a Nap\u00e9nak. A csillagokn\u00e1l id\u0151nk\u00e9nt megfigyelhet\u0151ek kif\u00e9nyesed\u00e9sek (szaksz\u00f3val az ilyen jelens\u00e9get flernek nevezz\u00fck), a 2019. m\u00e1jus elsej\u00e9n \u00e9szlelt esem\u00e9ny azonban minden kor\u00e1bbin\u00e1l extr\u00e9mebb volt.<\/p>\n\n\n\n

Az ALMA (Atacamai Nagym\u00e9ret\u0171 Millim\u00e9teres\/Szubmillim\u00e9teres H\u00e1l\u00f3zat) t\u00e1vcs\u0151rendszer mikrohull\u00e1m tartom\u00e1nyban vizsg\u00e1lta az idegen csillagot, amelynek f\u00e9nyess\u00e9ge n\u00e9h\u00e1ny m\u00e1sodperc leforg\u00e1sa alatt az ezerszeres\u00e9re n\u0151tt.<\/p>\n\n\n\n

A t\u00e1voli ultraibolya tartom\u00e1nyban vizsg\u00e1l\u00f3d\u00f3 Hubble \u0171rteleszk\u00f3p m\u00e9g enn\u00e9l is nagyobb, tizenn\u00e9gyezerszeres kif\u00e9nyesed\u00e9st m\u00e9rt.<\/p>\n\n\n\n

Jelen tud\u00e1sunk alapj\u00e1n a Proxima Centauri k\u00f6r\u00fcl k\u00e9t bolyg\u00f3, a Proxima b \u00e9s Proxima c kering. Ut\u00f3bbi egy h\u00e9t f\u00f6ldt\u00f6meg\u0171 \u00fagynevezett mini-Neptunusz, m\u00edg az el\u0151bbi egy nagyj\u00e1b\u00f3l F\u00f6ld-nagys\u00e1g\u00fa k\u0151zetbolyg\u00f3, ami a csillag lakhat\u00f3 z\u00f3n\u00e1j\u00e1ban kering, azaz elviekben foly\u00e9kony v\u00edz lehet a felsz\u00edn\u00e9n.<\/p>\n\n\n\n

A Proxima Centauri eset\u00e9ben azonban a lakhat\u00f3 \u00f6vezet sokkal k\u00f6zelebb tal\u00e1lhat\u00f3 a csillaghoz, mint a Naprendszerben. Ennek k\u00f6vetkezt\u00e9ben a Proxima b is sokkal k\u00f6zelebb kering az anyacsillag\u00e1hoz, mind\u00f6ssze 11 nap alatt ker\u00fcli meg azt.<\/p>\n\n\n\n

A k\u00f6zels\u00e9g miatt a plan\u00e9t\u00e1t k\u00e9tezerszer er\u0151sebb napszelek \u00e9rik, mint a F\u00f6ldet, egy mostanihoz hasonl\u00f3 erej\u0171 fler pedig minden bizonnyal negat\u00edvan hat a bolyg\u00f3 lakhat\u00f3s\u00e1g\u00e1ra.<\/p>\n\n\n\n

Az ALMA \u00e9s a Hubble megfigyel\u00e9s\u00e9t az ausztr\u00e1l ASKAP (Ausztr\u00e1l N\u00e9gyzetkilom\u00e9teres H\u00e1l\u00f3zati Helykeres\u0151) teleszk\u00f3ph\u00e1l\u00f3zat, a NASA TESS exobolyg\u00f3vad\u00e1sz m\u0171holdja, valamint az Ir\u00e9n\u00e9e du Pont Teleszk\u00f3p is seg\u00edtette.<\/p>\n\n\n\n

\u201eA Proxima Centauri k\u00f6r\u00fclbel\u00fcl olyan id\u0151s, mint a Nap, vagyis t\u00f6bb milli\u00e1rd \u00e9ve bomb\u00e1zhatja bolyg\u00f3it nagy energi\u00e1j\u00fa kif\u00e9nyesed\u00e9sekkel. Ezeket az extr\u00e9m flereket t\u00f6bb m\u0171szerrel egyidej\u0171leg tanulm\u00e1nyozva megfejthetj\u00fck, milyen terhel\u00e9s \u00e9rte e bolyg\u00f3kat, \u00e9s hogyan v\u00e1ltozhattak ennek hat\u00e1s\u00e1ra\u201d \u2013 nyilatkozta dr Alycia Weinberger, a Carnegie Tudom\u00e1nyos Int\u00e9zet munkat\u00e1rsa.<\/p>\n\n\n\n

(Origo<\/a>)<\/p>\n","protected":false},"excerpt":{"rendered":"

A Proxima Centaurin\u00e1l, a Naphoz legk\u00f6zelebbi csillagn\u00e1l rekordnagys\u00e1g\u00fa kif\u00e9nyesed\u00e9st \u00e9szleltek \u2013 k\u00f6z\u00f6lte az IFL Science tudom\u00e1nyos port\u00e1l. Egy kilenc teleszk\u00f3pb\u00f3l \u00e1ll\u00f3 t\u00e1vcs\u0151h\u00e1l\u00f3zat r\u00f6gz\u00edtette a kozmikus kataklizm\u00e1t. <\/p>\n","protected":false},"author":5,"featured_media":54881,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41,596,49,598,39],"tags":[6101,2184],"class_list":["post-54880","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cikkek","category-erdekes","category-hirek","category-tudomany","category-vilag","tag-csillagaszat","tag-urkutatas"],"_links":{"self":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts\/54880","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=54880"}],"version-history":[{"count":0,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts\/54880\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/media\/54881"}],"wp:attachment":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=54880"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=54880"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=54880"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}