{"id":3137,"date":"2019-05-20T16:16:04","date_gmt":"2019-05-20T09:16:04","guid":{"rendered":"https:\/\/vinatom.gov.vn\/?p=3137"},"modified":"2019-05-20T16:16:04","modified_gmt":"2019-05-20T09:16:04","slug":"seminar-khoa-hoc-nguon-goc-cua-cac-nguyen-to-sao-neutron-va-kilonova","status":"publish","type":"post","link":"https:\/\/vinatom.gov.vn\/seminar-khoa-hoc-nguon-goc-cua-cac-nguyen-to-sao-neutron-va-kilonova\/","title":{"rendered":"Seminar khoa h\u1ecdc: \u201cNgu\u1ed3n g\u1ed1c c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1, sao neutron v\u00e0 Kilonova\u201d"},"content":{"rendered":"<p style=\"text-align: justify;\">Chi\u1ec1u ng\u00e0y 09\/05\/2019, t\u1ea1i Trung t\u00e2m H\u1ea1t nh\u00e2n TP. H\u1ed3 Ch\u00ed Minh (TTHN) \u0111\u00e3 di\u1ec5n ra Seminar v\u1edbi ch\u1ee7 \u0111\u1ec1: \u201cNgu\u1ed3n g\u1ed1c c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 sao neutron v\u00e0 v\u1ee5 n\u1ed5 Kilonova\u201d (Origin of Elements, Neutron Star and Kilonova), do GS.TS. \u0110\u00e0o Ti\u1ebfn Khoa &#8211; Vi\u1ec7n Khoa h\u1ecdc v\u00e0 K\u1ef9 thu\u1eadt h\u1ea1t nh\u00e2n tr\u00ecnh b\u00e0y. Tham d\u1ef1 Seminar c\u00f3 c\u00e1c c\u00e1n b\u1ed9 nghi\u00ean c\u1ee9u khoa h\u1ecdc v\u00e0 c\u00e1n b\u1ed9 L\u00e3nh \u0111\u1ea1o c\u1ee7a TTHN c\u0169ng nh\u01b0 c\u00e1c kh\u00e1ch m\u1eddi \u0111\u1ebfn t\u1eeb c\u00e1c \u0111\u01a1n v\u1ecb nghi\u00ean c\u1ee9u kh\u00e1c t\u1ea1i \u0111\u1ecba b\u00e0n Tp. H\u1ed3 Ch\u00ed Minh.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: justify;\">T\u1ea1i bu\u1ed5i Seminar, GS. \u0110\u00e0o Ti\u1ebfn Khoa \u0111\u00e3 tr\u00ecnh b\u00e0y s\u01a1 l\u01b0\u1ee3c v\u1ec1 l\u1ecbch s\u1eed th\u1eddi gian c\u1ee7a v\u0169 tr\u1ee5. Kho\u1ea3ng 73% kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a v\u0169 tr\u1ee5 nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c \u1edf d\u1ea1ng hydro. Helium chi\u1ebfm kho\u1ea3ng 25% kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 m\u1ecdi th\u1ee9 kh\u00e1c ch\u1ec9 chi\u1ebfm 2%. C\u00e1c nguy\u00ean t\u1ed1 hydro v\u00e0 helium \u0111\u01b0\u1ee3c t\u1ea1o ra c\u00f9ng l\u00fac v\u1edbi s\u1ef1 ra \u0111\u1eddi c\u1ee7a ch\u00ednh v\u0169 tr\u1ee5. Th\u1eddi gian bi\u1ec3u c\u1ee7a s\u1ef1 h\u00ecnh th\u00e0nh v\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a v\u0169 tr\u1ee5 m\u00f4 t\u1ea3 l\u1ecbch s\u1eed v\u0169 tr\u1ee5 v\u00e0 t\u01b0\u01a1ng lai c\u1ee7a v\u0169 tr\u1ee5 theo thuy\u1ebft Big Bang (V\u1ee5 N\u1ed5 l\u1edbn). Ng\u01b0\u1eddi ta \u01b0\u1edbc t\u00ednh qu\u00e1 tr\u00ecnh m\u1edf r\u1ed9ng metric c\u1ee7a kh\u00f4ng gian \u0111\u00e3 kh\u01a1i m\u00e0o t\u1eeb 13,8 t\u1ef7 n\u0103m tr\u01b0\u1edbc. Th\u1eddi gian xu\u1ea5t hi\u1ec7n t\u1eeb th\u1eddi kh\u1eafc Big Bang x\u1ea3y ra \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 th\u1eddi gian v\u0169 tr\u1ee5.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><strong><em><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3138 aligncenter\" src=\"https:\/\/vinatom.gov.vn\/wp-content\/uploads\/2019\/05\/20.5.19.1.jpg\" alt=\"\" width=\"750\" height=\"511\" \/><\/em><\/strong><em>H\u00ecnh 1<\/em><em>.<\/em><em> H\u00ecnh m\u00f4 ph\u1ecfng bi\u1ec3u di\u1ec5n qu\u00e1 tr\u00ecnh ti\u1ebfn h\u00f3a c\u1ee7a v\u0169 tr\u1ee5 kh\u1ea3 ki\u1ebfn, xu\u1ea5t ph\u00e1t t\u1eeb V\u1ee5 N\u1ed5 l\u1edbn (\u0111i\u1ec3m s\u00e1ng b\u00ean tr\u00e1i) &#8211; cho \u0111\u1ebfn th\u1eddi gian hi\u1ec7n t\u1ea1i<\/em><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: justify;\">S\u1ef1 ra \u0111\u1eddi, s\u1ed1ng v\u00e0 k\u1ebft th\u00fac c\u1ee7a m\u1ed9t ng\u00f4i sao \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 d\u01b0\u1edbi d\u1ea1ng c\u00e1c ph\u1ea3n \u1ee9ng h\u1ea1t nh\u00e2n. Sao neutron l\u00e0 m\u1ed9t d\u1ea1ng trong v\u00e0i kh\u1ea3 n\u0103ng k\u1ebft th\u00fac c\u1ee7a qu\u00e1 tr\u00ecnh ti\u1ebfn ho\u00e1 sao. M\u1ed9t sao neutron \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh t\u1eeb nh\u1eefng g\u00ec c\u00f2n l\u1ea1i c\u1ee7a v\u1ee5 s\u1ee5p \u0111\u1ed5 m\u1ed9t ng\u00f4i sao l\u1edbn sau c\u00e1c v\u1ee5 n\u1ed5 si\u00eau t\u00e2n tinh. M\u1ed9t ng\u00f4i sao neutron th\u00f4ng th\u01b0\u1eddng c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng t\u1eeb 1,35 \u0111\u1ebfn 2,1 l\u1ea7n kh\u1ed1i l\u01b0\u1ee3ng M\u1eb7t tr\u1eddi, l\u1edbn h\u01a1n kh\u1ed1i l\u01b0\u1ee3ng sao l\u00f9n tr\u1eafng v\u00e0 nh\u1ecf h\u01a1n kh\u1ed1i l\u01b0\u1ee3ng h\u1ed1 \u0111en.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: justify;\">V\u1ee5 n\u1ed5 Kilonova l\u00e0 m\u1ed9t s\u1ef1 ki\u1ec7n thi\u00ean v\u0103n bi\u1ebfn \u0111\u1ed5i t\u1ee9c th\u1eddi (transient astronomical event), x\u1ea3y ra trong h\u1ec7 \u0111\u00f4i ch\u1ee9a hai thi\u00ean th\u1ec3 \u0111\u1eb7c nh\u01b0 hai sao neutron ho\u1eb7c m\u1ed9t sao neutron v\u00e0 m\u1ed9t l\u1ed7 \u0111en va ch\u1ea1m s\u00e1t nh\u1eadp v\u1edbi nhau. Kilonova \u0111\u01b0\u1ee3c cho l\u00e0 ngu\u1ed3n g\u1ed1c ph\u00e1t ra c\u00e1c ch\u1edbp gamma ng\u1eafn v\u00e0 c\u00e1c b\u1ee9c x\u1ea1 \u0111i\u1ec7n t\u1eeb m\u1ea1nh do qu\u00e1 tr\u00ecnh ph\u00e2n r\u00e3 ph\u00f3ng x\u1ea1 c\u00e1c h\u1ea1t nh\u00e2n n\u1eb7ng m\u1edbi \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p t\u1eeb ph\u1ea3n \u1ee9ng h\u1ea1t nh\u00e2n b\u1eaft neutron nhanh \u0111\u01b0a \u0111\u1ebfn t\u1ea1o ra v\u00e0 ph\u00e2n t\u00e1n \u0111\u1ec1u \u0111\u1eb7n trong giai \u0111o\u1ea1n va ch\u1ea1m s\u00e1t nh\u1eadp.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><em><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3139 aligncenter\" src=\"https:\/\/vinatom.gov.vn\/wp-content\/uploads\/2019\/05\/20.5.19.2.jpg\" alt=\"\" width=\"572\" height=\"365\" \/>H\u00ecnh 2.<\/em><em> S\u01a1 \u0111\u1ed3 bi\u1ec3u di\u1ec5n chu k\u1ef3 li\u00ean t\u1ee5c c\u1ee7a vi\u1ec7c t\u1ea1o ra nguy\u00ean t\u1ed1 v\u00e0 gi\u1ea3i ph\u00f3ng n\u0103ng l\u01b0\u1ee3ng trong v\u0169 tr\u1ee5<\/em><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: justify;\">GS. \u0110\u00e0o Ti\u1ebfn Khoa cho bi\u1ebft nh\u1eefng v\u1ee5 n\u1ed5 \u201cKilonova\u201d do 2 ng\u00f4i sao neutron va ch\u1ea1m l\u00e0m rung chuy\u1ec3n v\u0169 tr\u1ee5, b\u00f3p m\u00e9o kh\u00f4ng gian, th\u1eddi gian v\u00e0 ph\u00f3ng th\u00edch c\u1ea3 m\u1ed9t kho b\u00e1u. M\u1ed9t nghi\u00ean c\u1ee9u m\u1edbi do C\u01a1 quan H\u00e0ng kh\u00f4ng v\u00e0 V\u0169 tr\u1ee5 M\u1ef9 (NASA) d\u1eabn \u0111\u1ea7u ti\u1ebft l\u1ed9 khi nh\u00ecn l\u00ean b\u1ea7u tr\u1eddi, c\u00f3 th\u1ec3 b\u1ea1n \u0111ang h\u01b0\u1edbng v\u1ec1 c\u1ea3 m\u1ed9t kho b\u00e1u kh\u1ed5ng l\u1ed3. Nh\u1eefng v\u1ee5 n\u1ed5 \u201cKilonova\u201d huy\u1ec1n tho\u1ea1i tung ra \u0111\u1ea7y b\u1ea1c, v\u00e0ng, b\u1ea1ch kim, uranium\u2026 kh\u00e1 ph\u1ed5 bi\u1ebfn.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: justify;\">Nghi\u00ean c\u1ee9u d\u1ef1a tr\u00ean ph\u00e1t hi\u1ec7n \u0111\u1ea7u ti\u00ean l\u00e0 c\u00fa va ch\u1ea1m n\u1ea3y l\u1eeda c\u1ee7a 2 ng\u00f4i sao\u00a0neutron\u00a0v\u00e0o ng\u00e0y 16\/10\/2017. C\u00e1c nh\u00e0 thi\u00ean v\u0103n h\u1ecdc r\u1ea5t b\u1ea5t ng\u1edd khi t\u00e1c \u0111\u1ed9ng c\u1ee7a n\u00f3 v\u00f4 c\u00f9ng kh\u1ee7ng khi\u1ebfp khi\u1ebfn n\u1ec1n v\u0169 tr\u1ee5 rung chuy\u1ec3n, b\u00f3p m\u00e9o c\u1ea3 kh\u00f4ng gian v\u00e0 th\u1eddi gian, l\u00e0m v\u00f4 s\u1ed1 kim lo\u1ea1i qu\u00fd v\u0103ng tung t\u00f3e.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: justify;\">B\u00ean c\u1ea1nh \u0111\u00f3, GS. \u0110\u00e0o Ti\u1ebfn Khoa c\u0169ng \u0111\u00e3 tr\u00ecnh b\u00e0y nh\u1eefng nghi\u00ean c\u1ee9u v\u00e0 \u0111\u00f3ng g\u00f3p c\u1ee7a c\u00e1c nh\u00e0 khoa h\u1ecdc n\u1ed5i ti\u1ebfng th\u1ebf gi\u1edbi trong l\u0129nh v\u1ef1c v\u1eadt l\u00fd thi\u00ean v\u0103n n\u00f3i ri\u00eang v\u00e0 cho v\u1eadt l\u00fd hi\u1ec7n \u0111\u1ea1i n\u00f3i chung nh\u01b0 Nh\u00e0 b\u00e1c h\u1ecdc Albert Einstein, TS. Hans Bethe, Fred Hoyle, George Gamow, v.v.. nhi\u1ec1u ng\u01b0\u1eddi trong s\u1ed1 \u0111\u00f3 \u0111\u00e3 gi\u00e0nh \u0111\u01b0\u1ee3c gi\u1ea3i Nobel v\u1ec1 V\u1eadt l\u00fd.<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3140 aligncenter\" src=\"https:\/\/vinatom.gov.vn\/wp-content\/uploads\/2019\/05\/20.5.19.3.jpg\" alt=\"\" width=\"632\" height=\"279\" \/><\/p>\n<p style=\"text-align: justify;\">Ph\u1ea7n th\u1ea3o lu\u1eadn \u0111\u00e3 di\u1ec5n ra s\u00f4i n\u1ed5i v\u1edbi nhi\u1ec1u c\u00e2u h\u1ecfi v\u00e0 b\u00ecnh lu\u1eadn \u0111\u01b0\u1ee3c \u0111\u01b0a ra c\u0169ng r\u1ea5t c\u1edfi m\u1edf v\u00e0 h\u00e0o h\u1ee9ng. K\u1ebft th\u00fac bu\u1ed5i seminar, TS. H\u1ed3 M\u1ea1nh D\u0169ng \u0111\u00e3 thay m\u1eb7t c\u00e1n b\u1ed9 nghi\u00ean c\u1ee9u khoa h\u1ecdc c\u1ee7a TTHN c\u00e1m \u01a1n GS. \u0110\u00e0o Ti\u1ebfn Khoa \u0111\u00e3 \u0111em \u0111\u1ebfn cho Trung t\u00e2m m\u1ed9t bu\u1ed5i sinh ho\u1ea1t khoa h\u1ecdc r\u1ea5t b\u1ed5 \u00edch v\u00e0 th\u00fa v\u1ecb v\u00e0 hi v\u1ecdng \u00f4ng s\u1ebd c\u00f2n nhi\u1ec1u bu\u1ed5i Seminar t\u01b0\u01a1ng t\u1ef1 n\u1eefa trong t\u01b0\u01a1ng lai.<\/p>\n<p style=\"text-align: justify;\"><em>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em><\/p>\n<p style=\"text-align: right;\"><strong>Thanh H\u01b0\u01a1ng, Trung t\u00e2m H\u1ea1t nh\u00e2n TP. HCM<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Chi\u1ec1u ng\u00e0y 09\/05\/2019, t\u1ea1i Trung t\u00e2m H\u1ea1t nh\u00e2n TP. H\u1ed3 Ch\u00ed Minh (TTHN) \u0111\u00e3 di\u1ec5n ra Seminar v\u1edbi ch\u1ee7 \u0111\u1ec1: \u201cNgu\u1ed3n g\u1ed1c c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 sao neutron v\u00e0 v\u1ee5 n\u1ed5 Kilonova\u201d (Origin of Elements, Neutron Star and Kilonova), do GS.TS. \u0110\u00e0o Ti\u1ebfn Khoa &#8211; Vi\u1ec7n Khoa h\u1ecdc v\u00e0 K\u1ef9 thu\u1eadt h\u1ea1t nh\u00e2n tr\u00ecnh b\u00e0y. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3138,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,26,16],"tags":[],"class_list":["post-3137","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hoi-nghi-hoi-thao","category-tin-tong-hop","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/posts\/3137","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/comments?post=3137"}],"version-history":[{"count":0,"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/posts\/3137\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vinatom.gov.vn\/wp-json\/"}],"wp:attachment":[{"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/media?parent=3137"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/categories?post=3137"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/tags?post=3137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}