{"id":3041,"date":"2026-10-23T00:55:12","date_gmt":"2026-10-22T15:55:12","guid":{"rendered":"https:\/\/onepress.co.kr\/?post_type=briefing&p=3041"},"modified":"2026-10-23T00:57:01","modified_gmt":"2026-10-22T15:57:01","slug":"2026-10-23-lightest-neutron-pair-vi","status":"publish","type":"briefing","link":"https:\/\/onepress.co.kr\/index.php\/briefing\/2026-10-23-lightest-neutron-pair-vi\/","title":{"rendered":"C\u1eb7p sao neutron nh\u1eb9 nh\u1ea5t \u0111\u00e3 bi\u1ebft b\u1ed5 sung ph\u00e9p th\u1eed cho l\u00fd thuy\u1ebft h\u1ea5p d\u1eabn"},"content":{"rendered":"

2026-10-23 00:55:12 KST<\/strong><\/p>\n

Ph\u00e2n t\u00edch b\u1eb1ng k\u00ednh FAST c\u1ee7a Trung Qu\u1ed1c b\u00e1o c\u00e1o PSR J1856\u20130039 l\u00e0 h\u1ec7 hai sao neutron c\u00f3 t\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng th\u1ea5p nh\u1ea5t \u0111\u00e3 bi\u1ebft.<\/p>\n

Ph\u1ecfng v\u1ea5n t\u00e1c gi\u1ea3 ng\u00e0y 21\/10 gi\u1edbi thi\u1ec7u l\u1ea1i nghi\u00ean c\u1ee9u \u0111\u0103ng trong s\u1ed1 t\u1ea1p ch\u00ed th\u00e1ng 9; \u0111\u00e2y kh\u00f4ng ph\u1ea3i ph\u00e1t hi\u1ec7n h\u00f4m nay hay ch\u1ee9ng minh cu\u1ed1i c\u00f9ng v\u1ec1 h\u1ea5p d\u1eabn.<\/p>\n

V\u00ec sao c\u1eb7p sao th\u00e0nh \u0111\u1ed3ng h\u1ed3 t\u1ef1 nhi\u00ean?<\/h2>\n

Sao neutron l\u00e0 ph\u1ea7n c\u00f2n l\u1ea1i c\u1ef1c \u0111\u1eb7c c\u1ee7a sao kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn sau v\u1ee5 n\u1ed5. M\u1ed9t sao ph\u00e1t xung v\u00f4 tuy\u1ebfn \u0111\u1ec1u \u0111\u1eb7n, cho ph\u00e9p d\u00f9ng nh\u01b0 \u0111\u1ed3ng h\u1ed3. Nh\u00f3m so th\u1eddi \u0111i\u1ec3m xung \u0111\u1ebfn t\u1eeb 17 l\u1ea7n quan s\u00e1t FAST trong 2020\u20132025 v\u1edbi m\u00f4 h\u00ecnh qu\u1ef9 \u0111\u1ea1o. Hai sao quay quanh nhau kho\u1ea3ng 2,36 gi\u1edd m\u1ed9t v\u00f2ng. Kh\u1ed1i l\u01b0\u1ee3ng kh\u00f4ng \u0111\u01b0\u1ee3c \u0111o \u0111\u01a1n gi\u1ea3n t\u1eeb \u1ea3nh hai \u0111i\u1ec3m s\u00e1ng.<\/p>\n

K\u1ef7 l\u1ee5c n\u1eb1m \u1edf t\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng<\/h2>\n

B\u00e0i g\u1ed1c n\u00eau t\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng 2,48841\u00b10,00015 l\u1ea7n M\u1eb7t Tr\u1eddi. T\u1eebng sao kho\u1ea3ng 1,304 v\u00e0 1,185 l\u1ea7n, m\u1ed7i gi\u00e1 tr\u1ecb c\u00f3 sai s\u1ed1 \u00b10,022. T\u1ed5ng v\u00e0 t\u1eebng ph\u1ea7n c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c kh\u00e1c v\u00ec \u0111\u01b0\u1ee3c r\u00e0ng bu\u1ed9c b\u1edfi c\u00e1c hi\u1ec7u \u1ee9ng qu\u1ef9 \u0111\u1ea1o kh\u00e1c nhau. Nh\u1eb9 nh\u1ea5t l\u00e0 t\u1ed5ng trong nh\u1eefng h\u1ec7 hai sao neutron \u0111\u00e3 bi\u1ebft, kh\u00f4ng ph\u1ea3i m\u1ecdi ng\u00f4i sao hay kh\u1ed1i l\u01b0\u1ee3ng t\u1ed1i thi\u1ec3u c\u1ee7a t\u1eebng sao neutron.<\/p>\n

\"C\u1eb7p
Minh h\u1ecda gi\u1ea3i th\u00edch do AI t\u1ea1o, kh\u00f4ng ph\u1ea3i \u1ea3nh th\u1eadt hi\u1ec7n tr\u01b0\u1eddng, kho, t\u00e1c ph\u1ea9m tr\u01b0ng b\u00e0y hay quan s\u00e1t; ki\u1ebfn tr\u00fac, m\u1ef1c n\u01b0\u1edbc v\u00e0 qu\u1ef9 \u0111\u1ea1o kh\u00f4ng \u0111\u01b0\u1ee3c t\u00e1i hi\u1ec7n \u0111\u00fang t\u1ef7 l\u1ec7.<\/figcaption><\/figure>\n

Kh\u1edbp \u1edf m\u1ee9c kho\u1ea3ng m\u1ed9t ph\u1ea7n tr\u0103m ngh\u0129a l\u00e0 g\u00ec?<\/h2>\n

Ph\u00e2n t\u00edch k\u1ebft h\u1ee3p qu\u1ef9 \u0111\u1ea1o co l\u1ea1i, h\u01b0\u1edbng qu\u1ef9 \u0111\u1ea1o xoay v\u00e0 \u0111\u1ed9 tr\u1ec5 th\u1eddi \u0111i\u1ec3m xung. T\u1ef7 s\u1ed1 gi\u1eefa m\u1ee9c bi\u1ebfn \u0111\u1ed5i do s\u00f3ng h\u1ea5p d\u1eabn quan s\u00e1t \u0111\u01b0\u1ee3c v\u1edbi d\u1ef1 \u0111o\u00e1n l\u00e0 1,009\u00b10,014, \u1edf m\u1ee9c tin c\u1eady 68%. Ph\u00f9 h\u1ee3p v\u1edbi m\u1ed9t \u1ee7ng h\u1ed9 l\u00fd thuy\u1ebft, kh\u00f4ng ch\u1ee9ng minh v\u0129nh vi\u1ec5n. M\u1ed9t h\u1ec7 pulsar \u0111\u00f4i \u0111\u00e3 bi\u1ebft cho ph\u00e9p th\u1eed ch\u00ednh x\u00e1c h\u01a1n, n\u00ean \u0111\u00e2y kh\u00f4ng ph\u1ea3i k\u1ef7 l\u1ee5c \u0111\u1ed9 ch\u00ednh x\u00e1c.<\/p>\n

V\u1eadt th\u1ec3 sau h\u1ee3p nh\u1ea5t v\u1eabn ch\u01b0a r\u00f5<\/h2>\n

M\u00f4 h\u00ecnh d\u1ef1 \u0111o\u00e1n h\u1ee3p nh\u1ea5t sau kho\u1ea3ng 82 tri\u1ec7u n\u0103m, kh\u00f4ng ph\u1ea3i va ch\u1ea1m \u0111\u00e3 quan s\u00e1t. K\u1ebft qu\u1ea3 l\u00e0 sao neutron \u1ed5n \u0111\u1ecbnh hay s\u1ee5p th\u00e0nh h\u1ed1 \u0111en sau khi quay ch\u1eadm l\u1ea1i c\u00f2n t\u00f9y t\u00ednh ch\u1ea5t v\u1eadt ch\u1ea5t \u0111\u1eb7c. Theo d\u00f5i l\u00e2u d\u00e0i c\u00f3 th\u1ec3 t\u00ecm hi\u1ec7u \u1ee9ng kh\u1ed1i l\u01b0\u1ee3ng quay k\u00e9o kh\u00f4ng-th\u1eddi gian. Ch\u00fang t\u00f4i \u0111\u1ed1i chi\u1ebfu b\u1ea3n th\u1ea3o c\u1ee7a t\u00e1c gi\u1ea3 v\u1edbi ph\u1ecfng v\u1ea5n g\u1ea7n \u0111\u00e2y; ph\u1ecfng v\u1ea5n kh\u00f4ng ph\u1ea3i quan s\u00e1t t\u00e1i l\u1eadp c\u1ee7a nh\u00f3m kh\u00e1c.<\/p>\n

Ngu\u1ed3n g\u1ed1c v\u00e0 ki\u1ec3m ch\u1ee9ng \u0111\u1ed9c l\u1eadp<\/h2>\n

To\u00e0n v\u0103n b\u1ea3n th\u1ea3o t\u00e1c gi\u1ea3: kh\u1ed1i l\u01b0\u1ee3ng, qu\u1ef9 \u0111\u1ea1o, m\u00f4 h\u00ecnh v\u00e0 sai s\u1ed1; kh\u00f4ng nh\u1eadn \u0111\u00e3 m\u1edf to\u00e0n b\u1ea3n PRL th\u00e1ng 9: Yang et al. \u00b7 author preprint \u00b7 arXiv:2607.27333v1<\/a><\/p>\n

T\u01b0\u1eddng thu\u1eadt \u0111\u1ed9c l\u1eadp: email ri\u00eang c\u1ee7a Han v\u00e0 so v\u1edbi ph\u00e9p th\u1eed tr\u01b0\u1edbc ch\u00ednh x\u00e1c h\u01a1n; kh\u00f4ng ph\u1ea3i ng\u00e0y ph\u00e1t hi\u1ec7n m\u1edbi hay t\u00e1i l\u1eadp: Live Science \u00b7 2026-10-21<\/a><\/p>\n

\u0110\u1ecdc b\u1eb1ng ng\u00f4n ng\u1eef kh\u00e1c<\/h2>\n

\ud55c\uad6d\uc5b4<\/a> \u00b7 English<\/a> \u00b7 Espa\u00f1ol<\/a> \u00b7 \u65e5\u672c\u8a9e<\/a> \u00b7 Ti\u1ebfng Vi\u1ec7t<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

PSR J1856\u20130039 c\u00f3 t\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng kho\u1ea3ng 2,49 M\u1eb7t Tr\u1eddi. Ph\u1ecfng v\u1ea5n g\u1ea7n \u0111\u00e2y nh\u1eafc l\u1ea1i k\u1ebft qu\u1ea3, kh\u00f4ng ph\u1ea3i k\u1ef7 l\u1ee5c \u0111\u1ed9 ch\u00ednh x\u00e1c.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-3041","briefing","type-briefing","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/briefing\/3041","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/briefing"}],"about":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/types\/briefing"}],"wp:attachment":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/media?parent=3041"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}