{"id":6165,"date":"2017-09-28T19:47:39","date_gmt":"2017-09-28T12:47:39","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=6165"},"modified":"2017-10-03T09:04:39","modified_gmt":"2017-10-03T02:04:39","slug":"nasa-phat-hien-he-sao-than-ky-chua-lo-den-cuc-lon","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/nasa-phat-hien-he-sao-than-ky-chua-lo-den-cuc-lon\/","title":{"rendered":"NASA ph\u00e1t hi\u1ec7n h\u1ec7 sao th\u1ea7n k\u1ef3 ch\u1ee9a l\u1ed7 \u0111en c\u1ef1c l\u1edbn"},"content":{"rendered":"

C\u00e1c nh\u00e0 thi\u00ean v\u0103n h\u1ecdc \u0111\u00e3 t\u00ecm th\u1ea5y m\u1ed9t h\u1ec7 sao nh\u1ecf ch\u1ee9a l\u1ed7 \u0111en c\u1ef1c l\u1edbn m\u00e0 \u0111\u1ebfn nay v\u1eabn ch\u01b0a th\u1ec3 gi\u1ea3i th\u00edch \u0111\u01b0\u1ee3c b\u1eb1ng nguy\u00ean l\u00fd l\u1ed7 \u0111en b\u1edfi theo nguy\u00ean l\u00fd hi\u1ec7n t\u01b0\u1ee3ng tr\u00ean l\u00e0 sai.C\u1ee5c h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 qu\u1ed1c gia M\u1ef9 (NASA) cho bi\u1ebft, trong l\u00fac c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111ang quan s\u00e1t s\u1ef1 h\u1ed9i t\u1ee5 c\u1ee7a h\u1ec7 sao \u0111\u00e3 ph\u00e1t hi\u1ec7n ra m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng thi\u00ean v\u0103n h\u1ecdc th\u1ea7n k\u1ef3 c\u1ee7a h\u1ec7 sao nh\u1ecf ch\u1ee9a l\u1ed7 \u0111en c\u1ef1c l\u1edbn.<\/strong><\/p>\n

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\u0110\u00e2y l\u00e0 h\u1ec7 sao \u0111\u01b0\u1ee3c mang t\u00ean Was 49. H\u1ec7 sao n\u00e0y h\u00ecnh th\u00e0nh t\u1eeb h\u1ec7 sao l\u1edbn Was 49a v\u00e0 h\u1ec7 sao ng\u1eafn Was 49b (h\u1ec7 sao nh\u1ecf). H\u1ec7 sao ng\u1eafn Was 49b di chuy\u1ec3n xung quanh h\u1ec7 sao l\u1edbn Was 49a.<\/p>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc cho r\u1eb1ng, h\u1ec7 sao ng\u1eafn Was 49b c\u00e1ch trung t\u00e2m c\u1ee7a h\u1ec7 sao l\u1edbn Was 49a kho\u1ea3ng 26.000 n\u0103m \u00e1nh s\u00e1ng. M\u1eb7c d\u00f9 th\u1ec3 t\u00edch c\u1ee7a n\u00f3 nh\u1ecf nh\u01b0ng l\u1ea1i c\u00f3 th\u1ec3 ph\u00e1t ra tia X c\u1ef1c l\u1edbn. V\u00ec v\u1eady n\u00f3 thu h\u00fat \u0111\u01b0\u1ee3c s\u1ef1 ch\u00fa \u00fd.<\/p>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc ti\u00ean \u0111o\u00e1n, h\u1ec7 sao Was 49b m\u1eb7c d\u00f9 nh\u1ecf nh\u01b0ng ch\u1eafc ph\u1ea3i ch\u1ee9a m\u1ed9t l\u1ed7 \u0111en si\u00eau l\u1edbn, n\u1ebfu kh\u00f4ng s\u1ebd kh\u00f4ng th\u1ec3 gi\u1ea3i th\u00edch n\u1ed5i.<\/p>\n

Nh\u00e0 thi\u00ean v\u0103n h\u1ecdc Nathan Secrest n\u00f3i: \u0110\u00e2y l\u00e0 s\u1ef1 h\u1ee3p nh\u1ea5t r\u1ea5t \u0111\u1eb7c bi\u1ec7t c\u1ee7a h\u1ec7 sao, n\u00f3 tr\u00e1i v\u1edbi nguy\u00ean l\u00fd h\u1ee3p nh\u1ea5t h\u1ec7 sao m\u00e0 ch\u00fang ta t\u1eebng bi\u1ebft.<\/p>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 quan s\u00e1t nh\u01b0 k\u00ednh vi\u1ec5n v\u1ecdng quang ph\u1ed5 h\u1ea1t nh\u00e2n NuSTAR , k\u00ednh thi\u00ean v\u0103n Kh\u00f4ng gian X-quang Chandra, v\u1ec7 tinh Swift \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ee7a Was 49a v\u00e0 Was 49b.
\nK\u1ebft qu\u1ea3 quan s\u00e1t c\u1ee7a NuSTAR v\u00e0 K\u00ednh thi\u00ean v\u0103n Sloan cho th\u1ea5y l\u1ed7 \u0111en si\u00eau to chi\u1ebfm 2% kh\u1ed1i l\u01b0\u1ee3ng h\u1ec7 sao Was 49b, v\u00e0 b\u1eb1ng v\u00e0i tr\u0103m l\u1ea7n kh\u1ed1i l\u01b0\u1ee3ng l\u1ed7 \u0111en b\u00ecnh th\u01b0\u1eddng kh\u00e1c trong h\u1ec7 sao c\u00f9ng lo\u1ea1i.<\/p>\n

Scorsley n\u00f3i: V\u00ec v\u1eady, ch\u00fang t\u00f4i kh\u00f4ng ngh\u0129 t\u1edbi trong h\u1ec7 sao ng\u1eafn l\u1ea1i c\u00f3 l\u1ed7 \u0111en si\u00eau l\u1edbn nh\u01b0 v\u1eady. H\u01a1n n\u1eefa, nh\u1eefng bi\u1ec3u hi\u1ec7n kh\u00e1c c\u1ee7a hai h\u1ec7 sao n\u00e0y c\u0169ng ngo\u00e0i t\u01b0\u1edfng t\u01b0\u1ee3ng. C\u00e1c nh\u00e0 khoa h\u1ecdc t\u1eebng ngh\u0129 r\u1eb1ng, khi hai h\u1ec7 sao h\u1ed9i t\u1ee5, h\u1ec7 sao l\u1edbn th\u01b0\u1eddng linh ho\u1ea1t, ph\u00e1t ra nhi\u1ec1u \u00e1nh s\u00e1ng m\u1ea1nh h\u01a1n. Nh\u01b0ng hi\u1ec7n t\u01b0\u1ee3ng quan s\u00e1t \u0111\u01b0\u1ee3c c\u1ee7a h\u1ec7 sao Was 49 l\u1ea1i tr\u00e1i ng\u01b0\u1ee3c ho\u00e0n to\u00e0n v\u1edbi l\u00fd thuy\u1ebft tr\u01b0\u1edbc \u0111\u00e2y. H\u1ec7 sao ng\u1eafn Was 49b l\u1ea1i bi\u1ec3u hi\u1ec7n linh ho\u1ea1t h\u01a1n, trong khi \u0111\u00f3 h\u1ec7 sao l\u1edbn Was 49a l\u1ea1i tr\u1edf n\u00ean t\u01b0\u01a1ng \u0111\u1ed1i an t\u0129nh.<\/p>\n

Hi\u1ec7n c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111ang t\u00ecm ki\u1ebfm nhi\u1ec1u gi\u1ea3i th\u00edch h\u1ee3p l\u00fd, t\u1ea5t c\u1ea3 \u0111\u1ec1u kh\u00f4ng th\u1ec3 gi\u1ea3i th\u00edch t\u1ea1i sao h\u1ec7 sao nh\u1ecf t\u1ea1i sao l\u1ea1i ch\u1ee9a m\u1ed9t h\u1ed1 \u0111en si\u00eau l\u1edbn nh\u01b0 v\u1eady. Nh\u01b0ng h\u1ecd th\u1ef1c s\u1ef1 th\u1ea5y \u0111\u00e2y l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng kh\u00f4ng th\u1ec3 n\u00e0o l\u00fd gi\u1ea3i \u0111\u01b0\u1ee3c.<\/p>\n

Nh\u00e0 khoa h\u1ecdc Scorsley cho bi\u1ebft, ph\u00e1t hi\u1ec7n n\u00e0y c\u00f3 \u00fd ngh\u0129a c\u1ef1c k\u1ef3 quan tr\u1ecdng \u0111\u1ec3 c\u00e1c nh\u00e0 khoa h\u1ecdc bi\u1ebft \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng l\u1ed7 \u0111en si\u00eau l\u1edbn m\u1edbi n\u00e0y.<\/p>\n

T\u1ea1p ch\u00ed khoa h\u1ecdc v\u00e0 c\u00f4ng ngh\u1ec7 Vi\u1ec7t Nam<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00e1c nh\u00e0 thi\u00ean v\u0103n h\u1ecdc \u0111\u00e3 t\u00ecm th\u1ea5y m\u1ed9t h\u1ec7 sao nh\u1ecf ch\u1ee9a l\u1ed7 \u0111en c\u1ef1c l\u1edbn m\u00e0 \u0111\u1ebfn nay v\u1eabn ch\u01b0a th\u1ec3 gi\u1ea3i th\u00edch \u0111\u01b0\u1ee3c b\u1eb1ng nguy\u00ean l\u00fd l\u1ed7 \u0111en b\u1edfi theo nguy\u00ean l\u00fd hi\u1ec7n t\u01b0\u1ee3ng tr\u00ean l\u00e0 sai.C\u1ee5c h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 qu\u1ed1c gia M\u1ef9 (NASA) cho bi\u1ebft, trong l\u00fac c\u00e1c nh\u00e0 khoa […]<\/p>\n","protected":false},"author":17,"featured_media":6262,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-6165","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/6165","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=6165"}],"version-history":[{"count":2,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/6165\/revisions"}],"predecessor-version":[{"id":6263,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/6165\/revisions\/6263"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/6262"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=6165"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=6165"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=6165"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}