{"id":7763,"date":"2017-10-09T00:26:58","date_gmt":"2017-10-08T17:26:58","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=7763"},"modified":"2017-12-04T00:27:25","modified_gmt":"2017-12-03T17:27:25","slug":"phat-hien-nguon-phat-song-hap-dan-tu-sao-neutron","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/phat-hien-nguon-phat-song-hap-dan-tu-sao-neutron\/","title":{"rendered":"Ph\u00e1t hi\u1ec7n ngu\u1ed3n ph\u00e1t s\u00f3ng h\u1ea5p d\u1eabn t\u1eeb sao neutron"},"content":{"rendered":"

\"alt\"<\/p>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n ra m\u1ed9t lo\u1ea1i s\u00f3ng h\u1ea5p d\u1eabn m\u1edbi \u0111\u01b0\u1ee3c t\u1ea1o ra t\u1eeb s\u1ef1 va ch\u1ea1m c\u1ee7a hai ng\u00f4i sao neutron.<\/p>\n

C\u1ea3 3 l\u1ea7n ph\u00e1t hi\u1ec7n s\u00f3ng h\u1ea5p d\u1eabn tr\u01b0\u1edbc \u0111\u00e2y \u0111\u1ec1u b\u1eaft ngu\u1ed3n t\u1eeb s\u1ef1 va ch\u1ea1m c\u1ee7a c\u00e1c h\u1ed1 \u0111en. J. Craig Wheeler, nh\u00e0 thi\u00ean v\u0103n h\u1ecdc t\u1ea1i \u0110\u1ea1i h\u1ecdc Texas, Austin, M\u1ef9, \u0111\u0103ng tr\u00ean trang Twitter v\u1ec1 kh\u1ea3 n\u0103ng LIGO ph\u00e1t hi\u1ec7n m\u1ed9t ngu\u1ed3n ph\u00e1t s\u00f3ng h\u1ea5p d\u1eabn ho\u00e0n to\u00e0n m\u1edbi, \u0111\u00f3 l\u00e0 t\u1eeb v\u1ee5 va ch\u1ea1m c\u1ee7a c\u00e1c sao neutron.<\/p>\n

K\u00ednh thi\u00ean v\u0103n Hubble c\u1ee7a C\u01a1 quan H\u00e0ng kh\u00f4ng V\u0169 tr\u1ee5 M\u1ef9 (NASA) \u0111ang ti\u1ebfn h\u00e0nh quan s\u00e1t m\u1ed9t c\u1eb7p sao neutron n\u1eb1m trong thi\u00ean h\u00e0 NGC 4993, c\u00e1ch Tr\u00e1i \u0111\u1ea5t 130 tri\u1ec7u n\u0103m \u00e1nh s\u00e1ng. N\u1ebfu LIGO kh\u1ea3o s\u00e1t v\u1ee5 va ch\u1ea1m c\u1ee7a hai sao neutron n\u00e0y, n\u00f3 c\u00f3 th\u1ec3 thu \u0111\u01b0\u1ee3c s\u00f3ng h\u1ea5p d\u1eabn m\u00e0 ch\u00fang ta \u0111ang t\u00ecm ki\u1ebfm, theo New Scientist.<\/p>\n

Sao neutron c\u00f3 nh\u1eefng n\u00e9t t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi h\u1ed1 \u0111en v\u00ec ch\u00fang \u0111\u1ec1u h\u00ecnh th\u00e0nh t\u1eeb ph\u1ea7n c\u00f2n l\u1ea1i c\u1ee7a ng\u00f4i sao ph\u00e1t n\u1ed5. Nh\u01b0ng sao neutron c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng nh\u1ecf h\u01a1n v\u00e0 kh\u00f4ng b\u1ecb co l\u1ea1i v\u00e0o m\u1ed9t \u0111i\u1ec3m v\u00f4 c\u00f9ng nh\u1ecf nh\u01b0 h\u1ed1 \u0111en. Sao neutron l\u00e0 m\u1ed9t trong nh\u1eefng thi\u00ean th\u1ec3 c\u00f3 m\u1eadt \u0111\u1ed9 \u0111\u1eadm \u0111\u1eb7c nh\u1ea5t trong v\u0169 tr\u1ee5.<\/p>\n

Sao neutron khi va ch\u1ea1m v\u1edbi nhau t\u1ea1o ra c\u00e1c t\u00edn hi\u1ec7u gi\u1ed1ng nh\u01b0 h\u1ed1 \u0111en va ch\u1ea1m, nh\u01b0ng ch\u00fang y\u1ebfu h\u01a1n v\u00e0 kh\u00f3 b\u1ecb ph\u00e1t hi\u1ec7n h\u01a1n. LIGO t\u1eeb l\u00e2u \u0111\u00e3 t\u00ecm ki\u1ebfm t\u00edn hi\u1ec7u s\u00f3ng h\u1ea5p d\u1eabn t\u1eeb sao neutron, nh\u01b0ng v\u1eabn ch\u01b0a th\u00e0nh c\u00f4ng cho \u0111\u1ebfn b\u00e2y gi\u1edd.<\/p>\n

N\u0103m 2016, m\u1ed9t nh\u00f3m c\u00e1c nh\u00e0 thi\u00ean v\u0103n h\u1ecdc qu\u1ed1c t\u1ebf \u0111\u00e3 l\u00e0m n\u00ean l\u1ecbch s\u1eed khi l\u1ea7n \u0111\u1ea7u ti\u00ean ph\u00e1t hi\u1ec7n ra s\u00f3ng h\u1ea5p d\u1eabn nh\u1edd s\u1eed d\u1ee5ng Tr\u1ea1m quan s\u00e1t S\u00f3ng h\u1ea5p d\u1eabn b\u1eb1ng tia Laser giao thoa (LIGO), theo Popular Mechanics. \u0110\u00e2y l\u00e0 nh\u1eefng g\u1ee3n s\u00f3ng trong kh\u00f4ng gian v\u00e0 th\u1eddi gian \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi s\u1ef1 s\u00e1p nh\u1eadp c\u1ee7a hai h\u1ed1 \u0111en c\u00e1ch Tr\u00e1i \u0111\u1ea5t 1,3 t\u1ef7 n\u0103m \u00e1nh s\u00e1ng. T\u00ednh \u0111\u1ebfn nay, c\u00e1c nh\u00e0 khoa h\u1ecdc m\u1edbi ch\u1ec9 ghi nh\u1eadn th\u00eam 3 l\u1ea7n t\u00edn hi\u1ec7u s\u00f3ng h\u1ea5p d\u1eabn.<\/p>\n

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

C\u00e1c nh\u00e0 khoa h\u1ecdc c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n ra m\u1ed9t lo\u1ea1i s\u00f3ng h\u1ea5p d\u1eabn m\u1edbi \u0111\u01b0\u1ee3c t\u1ea1o ra t\u1eeb s\u1ef1 va ch\u1ea1m c\u1ee7a hai ng\u00f4i sao neutron. C\u1ea3 3 l\u1ea7n ph\u00e1t hi\u1ec7n s\u00f3ng h\u1ea5p d\u1eabn tr\u01b0\u1edbc \u0111\u00e2y \u0111\u1ec1u b\u1eaft ngu\u1ed3n t\u1eeb s\u1ef1 va ch\u1ea1m c\u1ee7a c\u00e1c h\u1ed1 \u0111en. J. Craig Wheeler, nh\u00e0 thi\u00ean v\u0103n h\u1ecdc […]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-7763","post","type-post","status-publish","format-standard","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7763","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\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=7763"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7763\/revisions"}],"predecessor-version":[{"id":7764,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7763\/revisions\/7764"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=7763"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=7763"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=7763"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}