{"id":1207,"date":"2026-08-14T01:45:00","date_gmt":"2026-08-13T16:45:00","guid":{"rendered":"https:\/\/onepress.co.kr\/?post_type=briefing&p=1207"},"modified":"2026-08-14T01:46:59","modified_gmt":"2026-08-13T16:46:59","slug":"2026-08-14-andromeda-star-formation-decline-vi","status":"publish","type":"briefing","link":"https:\/\/onepress.co.kr\/index.php\/briefing\/2026-08-14-andromeda-star-formation-decline-vi\/","title":{"rendered":"Vi\u1ec7c s\u1ea3n xu\u1ea5t c\u00e1c ng\u00f4i sao m\u1edbi \u1edf Andromeda \u0111\u00e3 gi\u1ea3m m\u1ea1nh, m\u1ed9t s\u1ef1 thay \u0111\u1ed5i \u0111\u01b0\u1ee3c ghi nh\u1eadn trong h\u1ed3 s\u01a1 500 tri\u1ec7u n\u0103m."},"content":{"rendered":"

2026-08-14 01:45 KST<\/strong><\/p>\n

M\u1ed9t nghi\u00ean c\u1ee9u ph\u00e2n t\u00edch d\u1eef li\u1ec7u c\u1ee7a K\u00ednh vi\u1ec5n v\u1ecdng Kh\u00f4ng gian Hubble cho th\u1ea5y s\u1ef1 h\u00ecnh th\u00e0nh sao trong Thi\u00ean h\u00e0 Andromeda \u0111\u00e3 gi\u1ea3m trong 500 tri\u1ec7u n\u0103m qua, v\u1edbi m\u1ee9c gi\u1ea3m l\u1edbn h\u01a1n trong 40 tri\u1ec7u n\u0103m qua.<\/p>\n

\u0110i\u1ec1u n\u00e0y kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 c\u00e1c thi\u00ean h\u00e0 s\u1ebd \u0111\u1ed9t ng\u1ed9t ch\u1ebft \u0111i ho\u1eb7c c\u00e1c ng\u00f4i sao c\u1ee7a ch\u00fang s\u1ebd bi\u1ebfn m\u1ea5t, m\u00e0 ch\u00fang l\u00e0 th\u01b0\u1edbc \u0111o v\u1ec1 kho\u1ea3ng th\u1eddi gian thay \u0111\u1ed5i d\u00e0i h\u1ea1n g\u1ea7n \u0111\u00e2y nh\u1ea5t k\u00e9o d\u00e0i h\u00e0ng t\u1ef7 n\u0103m.<\/p>\n

L\u00e0m sao ch\u00fang ta bi\u1ebft \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 h\u00ecnh th\u00e0nh sao trong qu\u00e1 kh\u1ee9?<\/h2>\n

C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 quan s\u00e1t h\u00e0ng tri\u1ec7u ng\u00f4i sao \u1edf \u0111\u0129a ph\u00eda nam Andromeda b\u1eb1ng Hubble. Thi\u00ean h\u00e0 \u0111\u01b0\u1ee3c chia th\u00e0nh h\u00e0ng ngh\u00ecn v\u00f9ng c\u00f3 k\u00edch th\u01b0\u1edbc kho\u1ea3ng 300 n\u0103m \u00e1nh s\u00e1ng m\u1ed7i c\u1ea1nh v\u00e0 \u0111\u1ed9 s\u00e1ng c\u0169ng nh\u01b0 s\u1ef1 ph\u00e2n b\u1ed1 m\u00e0u s\u1eafc c\u1ee7a c\u00e1c ng\u00f4i sao \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00e1i t\u1ea1o l\u1ea1i th\u1eddi \u0111i\u1ec3m c\u00e1c ng\u00f4i sao \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh \u1edf m\u1ed7i v\u00f9ng. Khi k\u1ebft h\u1ee3p v\u1edbi d\u1eef li\u1ec7u quan s\u00e1t ph\u00eda b\u1eafc, kho\u1ea3ng 2\/3 \u0111\u0129a t\u1ea1o ra c\u00e1c ng\u00f4i sao \u0111\u01b0\u1ee3c ki\u1ec3m tra theo c\u00e1ch t\u01b0\u01a1ng t\u1ef1.<\/p>\n

N\u00f3 \u0111\u00e3 gi\u1ea3m bao nhi\u00eau?<\/h2>\n

Theo t\u00ednh to\u00e1n c\u1ee7a c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u, 500 tri\u1ec7u n\u0103m tr\u01b0\u1edbc, Andromeda \u0111\u00e3 t\u1ea1o ra nh\u1eefng ng\u00f4i sao t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng kho\u1ea3ng m\u1ed9t m\u1eb7t tr\u1eddi m\u1ed7i n\u0103m. 40 tri\u1ec7u n\u0103m tr\u01b0\u1edbc n\u00f3 ch\u1ec9 b\u1eb1ng m\u1ed9t n\u1eeda s\u1ed1 \u0111\u00f3, v\u00e0 g\u1ea7n \u0111\u00e2y t\u1ed1c \u0111\u1ed9 n\u00e0y \u0111\u00e3 gi\u1ea3m th\u00eam xu\u1ed1ng c\u00f2n kho\u1ea3ng 1\/5 kh\u1ed1i l\u01b0\u1ee3ng M\u1eb7t tr\u1eddi m\u1ed7i n\u0103m. \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 con s\u1ed1 tr\u1ef1c ti\u1ebfp v\u1ec1 s\u1ed1 l\u01b0\u1ee3ng sao m\u00e0 l\u00e0 t\u1ef7 l\u1ec7 h\u00e0ng n\u0103m v\u1ec1 kh\u1ed1i l\u01b0\u1ee3ng v\u1eadt ch\u1ea5t \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh sao m\u1edbi.<\/p>\n

\"Vi\u1ec7c
\u0110\u00e2y l\u00e0 h\u00ecnh \u1ea3nh \u0111\u01b0\u1ee3c t\u1ea1o ra \u0111\u1ec3 minh h\u1ecda m\u1ed9t ch\u1ee7 \u0111\u1ec1 v\u00e0 kh\u00f4ng ph\u1ea3i l\u00e0 \u1ea3nh ch\u1ee5p m\u1ed9t c\u1ea3nh ho\u1eb7c quan s\u00e1t th\u1ef1c t\u1ebf.<\/figcaption><\/figure>\n

Thay \u0111\u1ed5i l\u1edbn nh\u1ea5t \u1edf \u0111\u00e2u?<\/h2>\n

Ph\u1ea7n l\u1edbn s\u1ef1 h\u00ecnh th\u00e0nh sao g\u1ea7n \u0111\u00e2y di\u1ec5n ra \u1edf m\u1ed9t v\u00f2ng c\u00e1ch trung t\u00e2m thi\u00ean h\u00e0 kho\u1ea3ng 32.000 n\u0103m \u00e1nh s\u00e1ng. S\u1ef1 suy gi\u1ea3m chung ch\u1ee7 y\u1ebfu l\u00e0 do ho\u1ea1t \u0111\u1ed9ng suy y\u1ebfu trong v\u00f2ng n\u00e0y. Thay v\u00ec n\u00f3i r\u1eb1ng kh\u00ed ho\u00e0n to\u00e0n bi\u1ebfn m\u1ea5t v\u00e0 d\u1eebng l\u1ea1i, ng\u01b0\u1eddi ta cho r\u1eb1ng \u0111\u00f3 l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh l\u1eafng xu\u1ed1ng t\u1ef1 nhi\u00ean sau m\u1ed9t th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng kho\u1ea3ng 2 t\u1ef7 n\u0103m tr\u01b0\u1edbc.<\/p>\n

Thi\u00ean h\u00e0 nh\u1ecf M32 c\u00f3 ph\u1ea3i l\u00e0 nguy\u00ean nh\u00e2n?<\/h2>\n

S\u1ef1 suy gi\u1ea3m \u0111\u1eb7c bi\u1ec7t r\u00f5 r\u1ec7t \u1edf khu v\u1ef1c g\u1ea7n thi\u00ean h\u00e0 v\u1ec7 tinh M32 c\u1ee7a Andromeda. C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 xem x\u00e9t kh\u1ea3 n\u0103ng c\u00e1c t\u01b0\u01a1ng t\u00e1c trong qu\u00e1 kh\u1ee9 c\u00f3 th\u1ec3 c\u00f3 \u1ea3nh h\u01b0\u1edfng, nh\u01b0ng kh\u00f4ng x\u00e1c nh\u1eadn r\u1eb1ng ch\u1ec9 ri\u00eang d\u1eef li\u1ec7u n\u00e0y l\u00e0 nguy\u00ean nh\u00e2n. Vi\u1ec7c c\u00e1c \u0111\u1ecba \u0111i\u1ec3m g\u1ea7n nhau v\u00e0 th\u1eddi gian ch\u00ednh x\u00e1c kh\u00f4ng ph\u1ea3i l\u00e0 b\u1eb1ng ch\u1ee9ng v\u1ec1 m\u1ed1i quan h\u1ec7 nh\u00e2n qu\u1ea3.<\/p>\n

T\u01b0\u01a1ng lai c\u1ee7a thi\u00ean h\u00e0 c\u1ee7a ch\u00fang ta c\u00f3 gi\u1ed1ng nhau kh\u00f4ng?<\/h2>\n

Andromeda v\u00e0 thi\u00ean h\u00e0 c\u1ee7a ch\u00fang ta c\u00f3 k\u00edch th\u01b0\u1edbc t\u01b0\u01a1ng t\u1ef1 nhau nh\u01b0ng c\u00f3 l\u1ecbch s\u1eed h\u00ecnh th\u00e0nh sao v\u00e0 m\u00f4i tr\u01b0\u1eddng kh\u00ed kh\u00e1c nhau. Nh\u1eefng k\u1ebft qu\u1ea3 n\u00e0y kh\u00f4ng th\u1ec3 chuy\u1ec3n th\u00e0nh d\u00f2ng th\u1eddi gian ch\u00ednh x\u00e1c trong t\u01b0\u01a1ng lai cho thi\u00ean h\u00e0 c\u1ee7a ch\u00fang ta. Thay v\u00e0o \u0111\u00f3, vi\u1ec7c \u0111\u1ecdc t\u1eebng ph\u1ea7n c\u00e1c thi\u00ean h\u00e0 xo\u1eafn \u1ed1c l\u1edbn g\u1ea7n \u0111\u00f3 cung c\u1ea5p c\u01a1 s\u1edf \u0111\u1ec3 nghi\u00ean c\u1ee9u c\u00e1ch c\u00e1c thi\u00ean h\u00e0 chuy\u1ec3n t\u1eeb th\u1eddi k\u1ef3 ho\u1ea1t \u0111\u1ed9ng sang th\u1eddi k\u1ef3 y\u00ean t\u0129nh.<\/p>\n

t\u00e0i li\u1ec7u ngu\u1ed3n ch\u00ednh th\u1ee9c<\/h2>\n

NASA Hubble release<\/a><\/p>\n

PHAST II preprint<\/a><\/p>\n

The Astrophysical Journal<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

T\u1ed1c \u0111\u1ed9 h\u00ecnh th\u00e0nh sao c\u1ee7a Andromeda, \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng l\u1ea1i t\u1eeb d\u1eef li\u1ec7u c\u1ee7a Hubble, \u0111\u00e3 gi\u1ea3m trong 500 tri\u1ec7u n\u0103m v\u00e0 gi\u1ea3m m\u1ea1nh h\u01a1n trong 40 tri\u1ec7u n\u0103m qua.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-1207","briefing","type-briefing","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/briefing\/1207","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=1207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}