K\u00ednh vi\u1ec5n v\u1ecdng kh\u00f4ng gian James Webb (JWST), m\u1ed9t k\u1ef3 quan thi\u00ean v\u0103n mang t\u00ednh \u0111\u1ed9t ph\u00e1, \u0111\u00e3 ch\u1ee5p \u0111\u01b0\u1ee3c nh\u1eefng h\u00ecnh \u1ea3nh ngo\u1ea1n m\u1ee5c \u0111\u1ea7u ti\u00ean v\u1ec1 \u00e1nh s\u00e1ng t\u1eeb c\u00e1c v\u00ec sao. Sau khi tri\u1ec3n khai th\u00e0nh c\u00f4ng 18 t\u1ea5m g\u01b0\u01a1ng m\u1ea1 v\u00e0ng, k\u00ednh vi\u1ec5n v\u1ecdng \u0111\u00e3 m\u1edf “\u0111\u00f4i m\u1eaft” c\u1ee7a m\u00ecnh h\u01b0\u1edbng v\u1ec1 v\u0169 tr\u1ee5.<\/p>\n\n
Nh\u1eefng h\u00ecnh \u1ea3nh \u0111\u1ea7u ti\u00ean m\u00e0 JWST ch\u1ee5p \u0111\u01b0\u1ee3c c\u00f2n r\u1ea5t xa v\u1edbi “c\u00e1i nh\u00ecn ch\u01b0a t\u1eebng c\u00f3 v\u1ec1 v\u0169 tr\u1ee5” m\u00e0 k\u00ednh h\u1ee9a h\u1eb9n s\u1ebd mang l\u1ea1i khi ho\u1ea1t \u0111\u1ed9ng h\u1ebft c\u00f4ng su\u1ea5t. Hi\u1ec7n t\u1ea1i, m\u1ed7i t\u1ea5m g\u01b0\u01a1ng c\u1ee7a k\u00ednh vi\u1ec5n v\u1ecdng ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t k\u00ednh vi\u1ec5n v\u1ecdng \u0111\u1ed9c l\u1eadp, t\u1ea1o ra 18 h\u00ecnh \u1ea3nh m\u1edd c\u1ee7a c\u00f9ng m\u1ed9t ng\u00f4i sao, HD-84406, n\u1eb1m c\u00e1ch xa 260 n\u0103m \u00e1nh s\u00e1ng.<\/p>\n\n
Nh\u1eefng h\u00ecnh \u1ea3nh m\u1edd \u0111\u01b0\u1ee3c gh\u00e9p l\u1ea1i \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t b\u1ee9c tranh gh\u00e9p kh\u1ed5ng l\u1ed3 v\u1edbi h\u01a1n hai t\u1ef7 \u0111i\u1ec3m \u1ea3nh, th\u1ec3 hi\u1ec7n kh\u1ea3 n\u0103ng c\u1ee7a M\u00e1y \u1ea3nh h\u1ed3ng ngo\u1ea1i g\u1ea7n (NIRCam) c\u1ee7a JWST. NIRCam ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n, cho ph\u00e9p n\u00f3 ho\u1ea1t \u0111\u1ed9ng tr\u01b0\u1edbc khi k\u00ednh vi\u1ec5n v\u1ecdng ngu\u1ed9i ho\u00e0n to\u00e0n xu\u1ed1ng nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c l\u1ea1nh gi\u00e1.<\/p>\n\n
C\u00e1c nh\u00e0 thi\u00ean v\u0103n h\u1ecdc hi\u1ec7n \u0111ang th\u1ef1c hi\u1ec7n nhi\u1ec7m v\u1ee5 tinh ch\u1ec9nh l\u00e0 c\u0103n ch\u1ec9nh c\u00e1c t\u1ea5m g\u01b0\u01a1ng c\u1ee7a k\u00ednh vi\u1ec5n v\u1ecdng. Trong v\u00e0i th\u00e1ng t\u1edbi, h\u1ecd s\u1ebd t\u1ec9 m\u1ec9 \u0111i\u1ec1u ch\u1ec9nh t\u1eebng t\u1ea5m g\u01b0\u01a1ng cho \u0111\u1ebfn khi 18 h\u00ecnh \u1ea3nh m\u1edd h\u1ee3p nh\u1ea5t th\u00e0nh m\u1ed9t ng\u00f4i sao duy nh\u1ea5t, r\u00f5 n\u00e9t.<\/p>\n\n
HD-84406 \u0111\u00e3 \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn c\u1ea9n th\u1eadn l\u00e0m ng\u00f4i sao m\u1ee5c ti\u00eau cho c\u00e1c quan s\u00e1t \u0111\u1ea7u ti\u00ean c\u1ee7a JWST nh\u1edd \u0111\u1eb7c \u0111i\u1ec3m d\u1ec5 nh\u1eadn bi\u1ebft v\u00e0 kh\u00f4ng c\u00f3 c\u00e1c ng\u00f4i sao g\u1ea7n k\u1ec1 c\u00f3 th\u1ec3 g\u00e2y nhi\u1ec5u.<\/p>\n\n
NIRCam \u0111\u00f3ng vai tr\u00f2 r\u1ea5t quan tr\u1ecdng trong c\u00e1c quan s\u00e1t ban \u0111\u1ea7u c\u1ee7a JWST. N\u00f3 ph\u00e1t hi\u1ec7n \u00e1nh s\u00e1ng h\u1ed3ng ngo\u1ea1i, \u0111\u01b0\u1ee3c ghi nh\u1eadn d\u01b0\u1edbi d\u1ea1ng nhi\u1ec7t, cho ph\u00e9p k\u00ednh vi\u1ec5n v\u1ecdng ho\u1ea1t \u0111\u1ed9ng tr\u01b0\u1edbc khi \u0111\u1ea1t \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 l\u00e0m m\u00e1t t\u1ed1i \u01b0u.<\/p>\n\n
Ngo\u00e0i vi\u1ec7c ch\u1ee5p \u1ea3nh \u00e1nh s\u00e1ng t\u1eeb c\u00e1c v\u00ec sao, JWST c\u00f2n ch\u1ee5p m\u1ed9t b\u1ee9c \u1ea3nh t\u1ef1 s\u01b0\u1edbng v\u0169 tr\u1ee5 ho\u00e0nh tr\u00e1ng b\u1eb1ng \u1ed1ng k\u00ednh h\u00ecnh \u1ea3nh chuy\u00ean d\u1ee5ng. B\u1ee9c \u1ea3nh t\u1ef1 s\u01b0\u1edbng n\u00e0y cho th\u1ea5y m\u1ed9t trong nh\u1eefng t\u1ea5m g\u01b0\u01a1ng c\u1ee7a k\u00ednh vi\u1ec5n v\u1ecdng s\u00e1ng h\u01a1n nh\u1eefng t\u1ea5m kh\u00e1c, cho th\u1ea5y n\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c c\u0103n ch\u1ec9nh v\u1edbi HD-84406.<\/p>\n\n
Qu\u00e1 tr\u00ecnh c\u0103n ch\u1ec9nh c\u00e1c t\u1ea5m g\u01b0\u01a1ng c\u1ee7a k\u00ednh vi\u1ec5n v\u1ecdng JWST l\u00e0 m\u1ed9t n\u1ed7 l\u1ef1c ph\u1ee9c t\u1ea1p v\u00e0 t\u1ed1n nhi\u1ec1u th\u1eddi gian. Tuy nhi\u00ean, khi ho\u00e0n t\u1ea5t, k\u00ednh vi\u1ec5n v\u1ecdng s\u1ebd b\u1eaft tay v\u00e0o s\u1ee9 m\u1ec7nh kh\u00e1m ph\u00e1 nh\u1eefng v\u00f9ng s\u00e2u th\u1eb3m nh\u1ea5t c\u1ee7a v\u0169 tr\u1ee5, v\u00e9n b\u1ee9c m\u00e0n b\u00ed \u1ea9n c\u1ee7a v\u0169 tr\u1ee5 v\u00e0 m\u1edf r\u1ed9ng hi\u1ec3u bi\u1ebft c\u1ee7a ch\u00fang ta v\u1ec1 v\u1ecb tr\u00ed c\u1ee7a m\u00ecnh trong v\u0169 tr\u1ee5.<\/p>\n\n
K\u00ednh vi\u1ec5n v\u1ecdng kh\u00f4ng gian James Webb l\u00e0 minh ch\u1ee9ng cho s\u1ef1 s\u00e1ng t\u1ea1o c\u1ee7a con ng\u01b0\u1eddi v\u00e0 h\u00e0nh tr\u00ecnh kh\u00f4ng ng\u1eebng ngh\u1ec9 c\u1ee7a ch\u00fang ta trong vi\u1ec7c t\u00ecm ki\u1ebfm tri th\u1ee9c. Nh\u1eefng h\u00ecnh \u1ea3nh \u0111\u1ea7u ti\u00ean c\u1ee7a k\u00ednh, m\u1eb7c d\u00f9 m\u1edd, nh\u01b0ng l\u1ea1i \u0111\u00e1nh d\u1ea5u m\u1ed9t c\u1ed9t m\u1ed1c quan tr\u1ecdng trong s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a thi\u00ean v\u0103n h\u1ecdc v\u00e0 kh\u00e1m ph\u00e1 kh\u00f4ng gian. Khi c\u00e1c t\u1ea5m g\u01b0\u01a1ng c\u1ee7a k\u00ednh \u0111\u01b0\u1ee3c c\u0103n ch\u1ec9nh v\u00e0 to\u00e0n b\u1ed9 kh\u1ea3 n\u0103ng c\u1ee7a k\u00ednh \u0111\u01b0\u1ee3c hi\u1ec7n th\u1ef1c h\u00f3a, ch\u00fang ta c\u00f3 th\u1ec3 h\u00e1o h\u1ee9c ch\u1edd \u0111\u1ee3i nh\u1eefng kh\u00e1m ph\u00e1 mang t\u00ednh \u0111\u1ed9t ph\u00e1 s\u1eafp t\u1edbi.<\/p>","protected":false},"excerpt":{"rendered":"
K\u00ednh vi\u1ec5n v\u1ecdng kh\u00f4ng gian James Webb h\u00e9 l\u1ed9 c\u1ea3nh t\u01b0\u1ee3ng \u0111\u1ea7y sao \u0111\u1ea7u ti\u00ean C\u1eadn c\u1ea3nh \u0111\u1ea7u ti\u00ean v\u1ec1 \u00e1nh s\u00e1ng t\u1eeb c\u00e1c v\u00ec sao K\u00ednh vi\u1ec5n v\u1ecdng kh\u00f4ng…<\/p>\n","protected":false},"author":1,"featured_media":24749,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1836],"tags":[8401,8400,8402,8399,434,4211,8403,8404,435,436],"class_list":["post-4645","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astronomy-and-astrophysics","tag-cosmic-spectacle","tag-first-star-image","tag-infrared-astronomy","tag-jwst","tag-space-exploration","tag-james-webb-space-telescope","tag-nircam","tag-space-telescope","tag-astronomy","tag-astrophysics"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/4645","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=4645"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/4645\/revisions"}],"predecessor-version":[{"id":24750,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/4645\/revisions\/24750"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media\/24749"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=4645"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=4645"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=4645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}