T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 2 – Arkady Leokum<\/p>\n\n\n\n
Ch\u1eafc b\u1ea1n bi\u1ebft ki\u1ec3u n\u00f3i \u201cch\u1eafc ch\u1eafn nh\u01b0 ng\u00e0y mai m\u1eb7t tr\u1eddi l\u1ea1i m\u1ecdc\u201d. \u0111\u1ed1i v\u1edbi ta, m\u1eb7t tr\u1eddi l\u00e0 m\u1ed9t c\u00e1i g\u00ec t\u0129nh t\u1ea1i v\u00e0 \u1ed5n \u0111\u1ecbnh. B\u1ea5t k\u1ec3 ta c\u00f3 nh\u00ecn th\u1ea5y m\u1eb7t tr\u1eddi hay kh\u00f4ng, ta v\u1eabn tin r\u1eb1ng m\u1eb7t tr\u1eddi v\u1eabn v\u1eady, kh\u00f4ng thay \u0111\u1ed5i ngh\u0129a l\u00e0 m\u1eb7t tr\u1eddi ng\u00e0y mai c\u0169ng v\u1eabn t\u1ecfa s\u00e1ng nh\u01b0 h\u00f4m nay v\u00e0 h\u00f4m qua.<\/p>\n\n\n\n
Trong sinh ho\u1ea1t h\u00e0ng ng\u00e0y, v\u00ec nh\u1eefng m\u1ee5c \u0111\u00edch th\u1ef1c ti\u1ec5n th\u00ec tin t\u01b0\u1edfng nh\u01b0 v\u1eady l\u00e0 \u0111\u00fang th\u00f4i. M\u1eb7t tr\u1eddi l\u00e0 ng\u00f4i sao t\u1ef1 n\u00f3 t\u1ecfa s\u00e1ng. Nh\u01b0ng, n\u00f3 l\u1ea5y n\u0103ng l\u01b0\u1ee3ng \u1edf \u0111\u00e2u ch\u1ee9? Ng\u00e0y nay, ng\u01b0\u1eddi ta cho r\u1eb1ng nh\u1eefng nguy\u00ean t\u1eed hydro b\u00ean trong m\u1eb7t tr\u1eddi b\u1ecb nung n\u00f3ng v\u00e0 tr\u1edf th\u00e0nh nguy\u00ean t\u1eed helium. Khi ph\u1ea3n \u1ee9ng n\u00e0y x\u1ea3y ra, n\u00f3 s\u1ebd ph\u00f3ng ra n\u0103ng l\u01b0\u1ee3ng tr\u00e0n ra b\u1ec1 m\u1eb7t m\u1eb7t tr\u1eddi. V\u00e0 m\u1eb7t tr\u1eddi c\u00f3 th\u1ec3 c\u1ee9 ti\u1ebfp t\u1ee5c b\u1ee9c x\u1ea1 nh\u01b0 v\u1eady c\u1ea3 t\u1ef7 n\u0103m n\u1eefa. Kh\u00e1i qu\u00e1t, n\u00f3i nh\u01b0 tr\u00ean l\u00e0 \u0111\u00fang. Nh\u01b0ng \u0111i v\u00e0o chi ti\u1ebft, ta s\u1ebd th\u1ea5y m\u1eb7t tr\u1eddi kh\u00f4ng ho\u00e0n to\u00e0n t\u0129nh t\u1ea1i v\u00e0 \u1ed5n \u0111\u1ecbnh nh\u01b0 ta t\u01b0\u1edfng \u0111\u00e2u. Th\u1eadt ra c\u00f3 nhi\u1ec1u ph\u1ea7n c\u1ee7a m\u1eb7t tr\u1eddi v\u1eadn h\u00e0nh \u1edf nh\u1eefng m\u1ee9c \u0111\u1ed9 kh\u00e1c nhau. Ch\u1eb3ng h\u1ea1n \u1edf x\u00edch \u0111\u1ea1o, m\u1eb7t tr\u1eddi quay m\u1ed9t v\u00f2ng m\u1ea5t 25 ng\u00e0y, nh\u01b0ng \u1edf c\u1ef1c th\u00ec m\u1ed9t v\u00f2ng ph\u1ea3i m\u1ea5t 35 ng\u00e0y.<\/p>\n\n\n\n
L\u1edbp ngo\u00e0i c\u1ee7a m\u1eb7t tr\u1eddi, c\u00f2n g\u1ecdi l\u00e0 \u201ct\u00e1n m\u1eb7t tr\u1eddi\u201d (corona) \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o b\u1edfi ch\u1ea5t h\u01a1i r\u1ea5t nh\u1eb9. L\u1edbp ngo\u00e0i c\u00f9ng c\u1ee7a t\u00e1n m\u1eb7t tr\u1eddi n\u00e0y c\u00f3 m\u00e0u tr\u1eafng c\u00f3 nh\u1eefng d\u00f2ng su\u1ed1i phun ra ngo\u00e0i m\u1eb7t r\u00eca m\u1eb7t tr\u1eddi nh\u1eefng c\u00e1i \u201cl\u01b0\u1ee1i\u201d d\u00e0i c\u1ea3 tri\u1ec7u ki-l\u00f4-met. S\u1ef1 ki\u1ec7n n\u00e0y g\u00e2y ra h\u1eadu qu\u1ea3 tuy nh\u1ecf nh\u01b0ng c\u00f3 \u1ea3nh h\u01b0\u1edfng r\u00f5 r\u1ec7t \u0111\u1ebfn \u0111\u1ed9 s\u00e1ng c\u1ee7a m\u1eb7t tr\u1eddi. M\u1ed9t l\u1edbp kh\u00e1c n\u1eefa c\u1ee7a m\u1eb7t tr\u1eddi – g\u1ecdi l\u00e0 \u201cquy\u1ec3n s\u1eafc\u201d (chromosphere) – c\u00f3 \u0111\u1ed9 d\u00e0i kho\u1ea3ng 15 ng\u00e0n ki-l\u00f4-met bao g\u1ed3m ch\u1ee7 y\u1ebfu l\u00e0 kh\u00ed hydro v\u00e0 helium. T\u1eeb l\u1edbp n\u00e0y ph\u00f3ng ra ngo\u00e0i nh\u1eefng tia kh\u1ed5ng l\u1ed3 cao \u0111\u1ebfn h\u00e0ng tri\u1ec7u ki-l\u00f4-met g\u1ecdi l\u00e0 \u201cprominence\u201d (tia l\u1eeda). Ch\u00ednh hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y l\u00e0 m\u1ed9t ph\u1ea7n nguy\u00ean nh\u00e2n c\u1ee7a s\u1ef1 kh\u00f4ng \u1ed5n \u0111\u1ecbnh c\u1ee7a m\u1eb7t tr\u1eddi.<\/p>\n","protected":false},"excerpt":{"rendered":"
T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 2 – Arkady Leokum Ch\u1eafc b\u1ea1n bi\u1ebft ki\u1ec3u n\u00f3i \u201cch\u1eafc ch\u1eafn nh\u01b0 ng\u00e0y mai m\u1eb7t tr\u1eddi l\u1ea1i m\u1ecdc\u201d. \u0111\u1ed1i v\u1edbi ta, m\u1eb7t tr\u1eddi l\u00e0 m\u1ed9t c\u00e1i g\u00ec t\u0129nh t\u1ea1i v\u00e0 \u1ed5n \u0111\u1ecbnh. B\u1ea5t k\u1ec3 ta c\u00f3 nh\u00ecn th\u1ea5y m\u1eb7t tr\u1eddi hay kh\u00f4ng, ta […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15],"tags":[],"class_list":["post-14006","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14006","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=14006"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14006\/revisions"}],"predecessor-version":[{"id":14007,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14006\/revisions\/14007"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=14006"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=14006"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=14006"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}