{"id":66549,"date":"2026-03-30T09:22:54","date_gmt":"2026-03-30T02:22:54","guid":{"rendered":"https:\/\/hbbgroup.net\/manh-moi-ve-nh-sng-dau-tin-cua-vu-tru\/"},"modified":"2026-03-30T09:22:54","modified_gmt":"2026-03-30T02:22:54","slug":"manh-moi-ve-nh-sng-dau-tin-cua-vu-tru","status":"publish","type":"post","link":"https:\/\/hbbgroup.net\/zh\/manh-moi-ve-nh-sng-dau-tin-cua-vu-tru\/","title":{"rendered":"Manh m\u1ed1i v\u1ec1 ánh sáng \u0111\u1ea7u tiên c\u1ee7a v\u0169 tr\u1ee5"},"content":{"rendered":"
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\"Manh<\/p>

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C\u00e1c ng\u00f4i sao \u1edf thi\u00ean h\u00e0 l\u00f9n Pictor II<\/p>\n<\/figcaption>

\u1ea2nh: CTIO\/NOIRLab\/DOE\/NSF\/AURA<\/p>\n<\/figure>\n

Th\u1ebf nh\u01b0ng cho \u0111\u1ebfn nay, ch\u01b0a c\u00f3 ng\u00f4i sao n\u00e0o thu\u1ed9c th\u1ebf h\u1ec7 \u0111\u1ea7u ti\u00ean c\u1ee7a v\u0169 tr\u1ee5<\/a> t\u1eebng \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n. Ch\u00fang \u0111\u01b0\u1ee3c g\u1ecdi chung l\u00e0 sao Population III.<\/p>\n

Gi\u1edd \u0111\u00e2y, c\u00e1c nh\u00e0 thi\u00ean v\u0103n \u0111\u00e3 ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c \u0111\u1ea1i di\u1ec7n c\u1ee7a nh\u00f3m sao \u0111\u01b0\u1ee3c cho h\u00ecnh th\u00e0nh ngay sau th\u1ebf h\u1ec7 sao \u0111\u00e3 l\u00e0m thay \u0111\u1ed5i v\u0169 tr\u1ee5, theo b\u00e1o c\u00e1o tr\u00ean chuy\u00ean san Nature Astronomy<\/i>.<\/p>\n

Nh\u00f3m sao n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 sao Population II, v\u00e0 v\u00f4 c\u00f9ng hi\u1ebfm. Ng\u00f4i sao v\u1eeba t\u00ecm \u0111\u01b0\u1ee3c c\u00f3 t\u00ean PicII-503 \u0111\u1eb7c bi\u1ec7t g\u00e2y ch\u00fa \u00fd do l\u00e0 thi\u00ean th\u1ec3 ngh\u00e8o s\u1eaft nh\u1ea5t t\u1eebng \u0111\u01b0\u1ee3c ghi nh\u1eadn b\u00ean ngo\u00e0i D\u1ea3i Ng\u00e2n H\u00e0. N\u00f3 thu\u1ed9c v\u1ec1 m\u1ed9t thi\u00ean h\u00e0 l\u00f9n c\u1ed5 \u0111\u1ea1i c\u00f3 ni\u00ean \u0111\u1ea1i h\u01a1n 10 t\u1ec9 n\u0103m.<\/p>\n

L\u1ea7n theo d\u1ea5u v\u1ebft t\u1eeb sao si\u00eau hi\u1ebfm<\/h2>\n

Tr\u01b0\u1edfng nh\u00f3m nghi\u00ean c\u1ee9u, ti\u1ebfn s\u0129 Anirudh Chiti c\u1ee7a \u0110\u1ea1i h\u1ecdc Stanford (M\u1ef9) nh\u1eadn \u0111\u1ecbnh nh\u00f3m \u00f4ng cho \u0111\u1ebfn g\u1ea7n \u0111\u00e2y ch\u01b0a bao gi\u1edd d\u00e1m m\u01a1 \u0111\u1ebfn kh\u1ea3 n\u0103ng ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c m\u1ed9t ng\u00f4i sao c\u00f2n l\u01b0u gi\u1eef r\u00f5 r\u00e0ng d\u1ea5u v\u1ebft c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 n\u1eb7ng t\u1eeb nh\u1eefng ng\u00f4i sao \u0111\u1ea7u ti\u00ean. Nguy\u00ean nh\u00e2n l\u00e0 ch\u00fang hi\u1ebfm \u1edf m\u1ee9c \u0111\u1ed9 kh\u00f4ng t\u01b0\u1edfng. <\/p>\n

“V\u1edbi h\u00e0m l\u01b0\u1ee3ng s\u1eaft th\u1ea5p nh\u1ea5t t\u1eebng \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong b\u1ea5t k\u1ef3 thi\u00ean h\u00e0 l\u00f9n si\u00eau m\u1edd, PicII-503 m\u1edf ra c\u00e1nh c\u1eeda gi\u00fap nh\u00e2n lo\u1ea1i nghi\u00ean c\u1ee9u qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh nh\u1eefng nguy\u00ean t\u1ed1 \u0111\u1ea7u ti\u00ean trong v\u0169 tr\u1ee5 s\u01a1 khai”, ti\u1ebfn s\u0129 Chiti cho bi\u1ebft.<\/p>\n

V\u0169 tr\u1ee5 kh\u00f4ng c\u00f3 l\u00f5i, n\u00ean trong tr\u01b0\u1eddng h\u1ee3p nh\u1eefng ng\u00f4i sao \u0111\u1ea7u ti\u00ean c\u1ee7a v\u0169 tr\u1ee5 v\u1eabn c\u00f2n ngo\u00e0i kia, ch\u00fang ph\u00e2n b\u1ed5 kh\u00e1 \u0111\u1ed3ng \u0111\u1ec1u xuy\u00ean su\u1ed1t kh\u00f4ng gian v\u00e0 th\u1eddi gian.<\/p>\n

Tuy nhi\u00ean, c\u00e1c nh\u00e0 khoa h\u1ecdc cho r\u1eb1ng nh\u00f3m sao Population III ph\u1ea3i l\u1edbn h\u01a1n nhi\u1ec1u l\u1ea7n so v\u1edbi b\u1ea5t k\u1ef3 ng\u00f4i sao n\u00e0o hi\u1ec7n t\u1ea1i. Ch\u00fang c\u0169ng c\u00f3 tu\u1ed5i th\u1ecd ng\u1eafn ng\u1ee7i, v\u00e0 trong qu\u00e1 tr\u00ecnh n\u00e0y t\u1ea1o ra c\u00e1c nguy\u00ean t\u1ed1 n\u1eb7ng nh\u01b0 s\u1eaft trong l\u00f5i.<\/p>\n

Khi c\u1ea1n nhi\u00ean li\u1ec7u, sao Population III k\u1ebft th\u00fac cu\u1ed9c \u0111\u1eddi trong nh\u1eefng v\u1ee5 n\u1ed5 kh\u1ee7ng khi\u1ebfp, ph\u00e1t t\u00e1n c\u00e1c nguy\u00ean t\u1ed1 n\u1eb7ng v\u00e0o kh\u00f4ng gian. Nh\u1eefng v\u1ee5 n\u1ed5 n\u00e0y c\u0169ng \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u00e1c l\u00f2 luy\u1ec7n \u0111\u1ec3 ti\u1ebfp t\u1ee5c t\u1ea1o ra c\u00e1c nguy\u00ean t\u1ed1 c\u00f2n n\u1eb7ng h\u01a1n s\u1eaft.<\/p>\n

C\u00e1c nguy\u00ean t\u1ed1 n\u1eb7ng, \u0111\u01b0\u1ee3c g\u1ecdi chung l\u00e0 “kim lo\u1ea1i”, sau \u0111\u00f3 g\u00f3p ph\u1ea7n h\u00ecnh th\u00e0nh n\u00ean th\u1ebf h\u1ec7 sao ti\u1ebfp theo. \u0110\u00f3 l\u00e0 l\u00fd do c\u00e1c sao c\u00e0ng tr\u1ebb th\u00ec h\u00e0m l\u01b0\u1ee3ng kim lo\u1ea1i c\u00e0ng cao; ng\u01b0\u1ee3c l\u1ea1i, sao c\u00e0ng c\u1ed5 x\u01b0a th\u00ec c\u00e0ng “ngh\u00e8o kim lo\u1ea1i”.<\/p>\n

“M\u1ed5 x\u1ebb” sao PicII-503<\/h2>\n

PicII-503 l\u00e0 sao c\u00e1ch tr\u00e1i \u0111\u1ea5t kho\u1ea3ng 150.000 n\u0103m \u00e1nh s\u00e1ng, b\u00ean trong thi\u00ean h\u00e0 l\u00f9n Pictor II. Pictor II \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 l\u00e0 thi\u00ean h\u00e0 h\u00f3a th\u1ea1ch, trong \u0111\u00f3 to\u00e0n b\u1ed9 sao \u0111\u1ec1u v\u00f4 c\u00f9ng c\u1ed5 x\u01b0a. \u0110i\u1ec1u \u0111\u00f3 cho ph\u00e9p thi\u00ean h\u00e0 l\u00e0 n\u01a1i l\u00fd t\u01b0\u1edfng \u0111\u1ec3 t\u00ecm ki\u1ebfm c\u00e1c sao c\u00f3 th\u1ec3 h\u00ecnh th\u00e0nh t\u1eeb nh\u00f3m Population III.<\/p>\n

Trong qu\u00e1 tr\u00ecnh t\u00ecm ki\u1ebfm, \u0111\u1ed9i ng\u0169 c\u1ee7a ti\u1ebfn s\u0129 Chiti ph\u00e1t hi\u1ec7n PicII-503. Theo k\u1ebft qu\u1ea3 ph\u00e2n t\u00edch, ng\u00f4i sao c\u00f3 l\u01b0\u1ee3ng s\u1eaft \u00edt h\u01a1n m\u1eb7t tr\u1eddi kho\u1ea3ng 43.000 l\u1ea7n v\u00e0 l\u01b0\u1ee3ng canxi th\u1ea5p h\u01a1n kho\u1ea3ng 160.000 l\u1ea7n. Ng\u01b0\u1ee3c l\u1ea1i, h\u00e0m l\u01b0\u1ee3ng carbon l\u1ea1i cao b\u1ea5t th\u01b0\u1eddng, g\u1ea5p kho\u1ea3ng 3.000 l\u1ea7n so v\u1edbi hai nguy\u00ean t\u1ed1 tr\u00ean.<\/p>\n

Nh\u1eefng g\u00ec quan s\u00e1t \u0111\u01b0\u1ee3c cho ph\u00e9p c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u k\u1ebft lu\u1eadn PicII-503 ph\u00f9 h\u1ee3p nh\u1ea5t cho nh\u1eefng hi\u1ec3u bi\u1ebft c\u1ee7a con ng\u01b0\u1eddi v\u1ec1 v\u0169 tr\u1ee5 n\u1ebfu n\u00f3 l\u00e0 m\u1ed9t sao Population II.<\/p>\n

H\u1ecd cho r\u1eb1ng ng\u00f4i sao h\u00ecnh th\u00e0nh t\u1eeb m\u00e2y kh\u00ed l\u00e0m gi\u00e0u t\u1eeb nh\u1eefng ng\u00f4i sao \u0111\u1ea7u ti\u00ean c\u1ee7a v\u0169 tr\u1ee5, c\u0169ng l\u00e0 c\u1ed9i ngu\u1ed3n cho \u00e1nh s\u00e1ng \u0111\u1ea7u ti\u00ean<\/a>.<\/p>\n<\/p><\/div>","protected":false},"excerpt":{"rendered":"

C\u00e1c ng\u00f4i sao \u1edf thi\u00ean h\u00e0 l\u00f9n Pictor II \u1ea2nh: CTIO\/NOIRLab\/DOE\/NSF\/AURA Th\u1ebf nh\u01b0ng cho \u0111\u1ebfn nay, ch\u01b0a c\u00f3 ng\u00f4i sao […]<\/p>","protected":false},"author":5,"featured_media":66551,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[95],"tags":[],"class_list":["post-66549","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc-the-gioi-vi"],"acf":[],"_links":{"self":[{"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/posts\/66549","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/comments?post=66549"}],"version-history":[{"count":0,"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/posts\/66549\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/media\/66551"}],"wp:attachment":[{"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/media?parent=66549"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/categories?post=66549"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/tags?post=66549"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}