{"id":2911,"date":"2026-10-19T00:44:48","date_gmt":"2026-10-18T15:44:48","guid":{"rendered":"https:\/\/onepress.co.kr\/?post_type=briefing&p=2911"},"modified":"2026-10-19T00:45:34","modified_gmt":"2026-10-18T15:45:34","slug":"2026-10-19-white-dwarf-colours-vi","status":"publish","type":"briefing","link":"https:\/\/onepress.co.kr\/index.php\/briefing\/2026-10-19-white-dwarf-colours-vi\/","title":{"rendered":"Sao l\u00f9n tr\u1eafng kh\u00f4ng nh\u1ea5t thi\u1ebft tr\u1eafng: nghi\u00ean c\u1ee9u t\u00ednh ra s\u1eafc xanh v\u00e0 h\u1ed3ng"},"content":{"rendered":"

2026-10-19 00:44:48 KST<\/strong><\/p>\n

M\u1ed9t s\u1ed1 sao l\u00f9n tr\u1eafng c\u00f3 th\u1ec3 tr\u00f4ng xanh l\u1ee5c ho\u1eb7c h\u1ed3ng v\u1edbi m\u1eaft ng\u01b0\u1eddi n\u1ebfu quan s\u00e1t \u0111\u01b0\u1ee3c t\u1eeb \u0111\u1ee7 g\u1ea7n.<\/p>\n

K\u1ebft qu\u1ea3 \u0111\u1ebfn t\u1eeb ph\u1ed5 \u00e1nh s\u00e1ng sao v\u00e0 m\u00f4 h\u00ecnh th\u1ecb gi\u00e1c m\u00e0u, kh\u00f4ng ph\u1ea3i \u1ea3nh ch\u1ee5p tr\u1ef1c ti\u1ebfp nh\u1eefng m\u00e0u \u1ea5y t\u1eeb Tr\u00e1i \u0110\u1ea5t.<\/p>\n

V\u00ec sao sao l\u00f9n tr\u1eafng c\u00f3 th\u1ec3 mang m\u00e0u kh\u00e1c?<\/h2>\n

\u0110\u00e2y l\u00e0 l\u00f5i \u0111\u1eb7c c\u00f2n l\u1ea1i sau khi nh\u1eefng sao nh\u01b0 M\u1eb7t Tr\u1eddi k\u1ebft th\u00fac v\u00f2ng \u0111\u1eddi. Nghi\u00ean c\u1ee9u Warwick c\u00f4ng b\u1ed1 ng\u00e0y 15\/10 gi\u1ea3i th\u00edch th\u00e0nh ph\u1ea7n v\u00e0 m\u1eadt \u0111\u1ed9 kh\u00ed quy\u1ec3n c\u0169ng \u1ea3nh h\u01b0\u1edfng m\u00e0u bi\u1ec3u ki\u1ebfn b\u00ean c\u1ea1nh nhi\u1ec7t \u0111\u1ed9. Natri, carbon v\u00e0 c\u00e1c ch\u1ea5t kh\u00e1c trong kh\u00ed quy\u1ec3n l\u1ea1nh, \u0111\u1eb7c h\u1ea5p th\u1ee5 nhi\u1ec1u d\u1ea3i \u00e1nh s\u00e1ng, khi\u1ebfn m\u00e0u t\u00ednh to\u00e1n c\u00f3 th\u1ec3 v\u01b0\u1ee3t ngo\u00e0i cam, tr\u1eafng v\u00e0 xanh lam th\u01b0\u1eddng g\u1eb7p.<\/p>\n

N\u0103m m\u00e0u kh\u00e1c th\u01b0\u1eddng trong m\u1eabu 151 sao<\/h2>\n

Nh\u00f3m c\u00f2n xem x\u00e9t 151 sao l\u00f9n tr\u1eafng trong ph\u1ea1m vi 20 parsec, kho\u1ea3ng 65 n\u0103m \u00e1nh s\u00e1ng, quanh Tr\u00e1i \u0110\u1ea5t. C\u00f3 n\u0103m sao mang m\u00e0u kh\u00e1c th\u01b0\u1eddng: hai v\u00e0ng v\u00e0 ba h\u1ed3ng. Kho\u1ea3ng m\u1ed9t tr\u00ean ba m\u01b0\u01a1i l\u00e0 t\u1ef7 l\u1ec7 suy ra t\u1eeb m\u1eabu n\u00e0y, kh\u00f4ng ph\u1ea3i cu\u1ed9c ki\u1ec3m k\u00ea to\u00e0n b\u1ed9 sao l\u00f9n tr\u1eafng trong v\u0169 tr\u1ee5. Kh\u00f4ng \u0111\u01b0\u1ee3c t\u00ednh v\u00ed d\u1ee5 xanh WD J1330+6435 v\u00e0o n\u0103m sao \u0111\u00f3. Ph\u1ea7n l\u1edbn v\u1eabn g\u1ea7n m\u00e0u tr\u1eafng.<\/p>\n

\"Sao
Minh h\u1ecda gi\u1ea3i th\u00edch do AI t\u1ea1o, kh\u00f4ng ph\u1ea3i \u1ea3nh th\u1eadt hay t\u00e1i hi\u1ec7n ch\u00ednh x\u00e1c hi\u1ec7n tr\u01b0\u1eddng, t\u00e1c ph\u1ea9m, m\u1eabu, m\u00e0u quan s\u00e1t ho\u1eb7c thi\u1ebft b\u1ecb.<\/figcaption><\/figure>\n

\u00c1nh xanh ch\u1ec9 ra th\u00e0nh ph\u1ea7n kh\u00ed quy\u1ec3n<\/h2>\n

C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u m\u00f4 t\u1ea3 calcium, lithium v\u00e0 natri t\u1eeb v\u1eadt ch\u1ea5t \u0111\u00e1 trong kh\u00ed quy\u1ec3n WD J1330+6435. Natri h\u1ea5p th\u1ee5 \u00e1nh cam c\u00f9ng c\u00e1c b\u01b0\u1edbc s\u00f3ng kh\u00e1c c\u00f3 th\u1ec3 khi\u1ebfn \u00e1nh c\u00f2n l\u1ea1i nghi\u00eang v\u1ec1 xanh. CNN ph\u1ecfng v\u1ea5n nh\u00e0 nghi\u00ean c\u1ee9u Mark Hollands v\u00e0 l\u1ea5y \u00fd ki\u1ebfn hai nh\u00e0 thi\u00ean v\u0103n kh\u00f4ng tham gia l\u00e0 Adam Burgasser, Agn\u00e8s Kim. Kim \u0111\u00e1nh gi\u00e1 \u0111\u00e2y l\u00e0 c\u00e1ch tr\u00ecnh b\u00e0y th\u00fa v\u1ecb t\u1eeb d\u1eef li\u1ec7u c\u00f3 s\u1eb5n, kh\u00f4ng nh\u1ea5t thi\u1ebft l\u00e0 ph\u00e1t hi\u1ec7n v\u1eadt l\u00fd m\u1edbi v\u1ec1 sao l\u00f9n tr\u1eafng.<\/p>\n

K\u00ednh thi\u00ean v\u0103n c\u00f3 cho th\u1ea5y \u0111\u00fang m\u00e0u \u1ea5y kh\u00f4ng?<\/h2>\n

Kh\u1ea3 n\u0103ng ph\u00e2n bi\u1ec7t m\u00e0u c\u1ee7a m\u1eaft gi\u1ea3m v\u1edbi v\u1eadt th\u1ec3 m\u1edd; \u1ea3nh thi\u00ean v\u0103n c\u0169ng c\u00f3 th\u1ec3 g\u00e1n b\u01b0\u1edbc s\u00f3ng quan s\u00e1t th\u00e0nh m\u00e0u hi\u1ec3n th\u1ecb. V\u00ec v\u1eady ph\u00e9p t\u00ednh kh\u00f4ng h\u1ee9a r\u1eb1ng ta nh\u00ecn \u0111\u01b0\u1ee3c c\u00e1c \u0111\u0129a sao m\u00e0u \u1ea5y tr\u00ean tr\u1eddi \u0111\u00eam. Th\u00eam d\u1eef li\u1ec7u ph\u1ed5 s\u1ebd gi\u00fap kh\u1ea3o s\u00e1t quan h\u1ec7 gi\u1eefa m\u00e0u hi\u1ebfm v\u00e0 h\u00f3a h\u1ecdc kh\u00ed quy\u1ec3n. Minh h\u1ecda AI ch\u1ec9 gi\u1ea3i th\u00edch kh\u00e1i ni\u1ec7m, kh\u00f4ng ph\u1ea3i \u1ea3nh quan s\u00e1t hay t\u00e1i hi\u1ec7n m\u00e0u ch\u00ednh x\u00e1c t\u1eeb b\u00e0i nghi\u00ean c\u1ee9u.<\/p>\n

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

C\u01a1 quan nghi\u00ean c\u1ee9u: t\u00ednh m\u00e0u ng\u00e0y 15\/10, m\u1eabu 151 sao v\u00e0 th\u00e0nh ph\u1ea7n n\u0103m sao kh\u00e1c th\u01b0\u1eddng: University of Warwick<\/a><\/p>\n

Tin \u0111\u1ed9c l\u1eadp: ph\u1ecfng v\u1ea5n ng\u00e0y 16\/10 v\u00e0 \u00fd ki\u1ebfn Burgasser, Kim kh\u00f4ng tham gia nghi\u00ean c\u1ee9u: CNN \/ KESQ<\/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":"

Nh\u00f3m chuy\u1ec3n ph\u1ed5 sao qua m\u00f4 h\u00ecnh th\u1ecb gi\u00e1c m\u00e0u c\u1ee7a con ng\u01b0\u1eddi. Kh\u00f4ng ph\u1ea3i \u1ea3nh sao xanh nh\u00ecn tr\u1ef1c ti\u1ebfp b\u1eb1ng m\u1eaft th\u01b0\u1eddng t\u1eeb Tr\u00e1i \u0110\u1ea5t.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-2911","briefing","type-briefing","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/briefing\/2911","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=2911"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}