{"id":26813,"date":"2021-04-02T09:05:37","date_gmt":"2021-04-02T02:05:37","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=26813"},"modified":"2022-02-09T16:25:16","modified_gmt":"2022-02-09T09:25:16","slug":"phuong-phap-dieu-huong-trong-moi-truong-lien-sao","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/phuong-phap-dieu-huong-trong-moi-truong-lien-sao\/","title":{"rendered":"Ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u h\u01b0\u1edbng trong m\u00f4i tr\u01b0\u1eddng li\u00ean sao"},"content":{"rendered":"\n

C\u00e1c nh\u00e0 thi\u00ean v\u0103n h\u1ecdc \u0111\u00e3 t\u00ecm ra c\u00e1ch \u0111\u1ec3 t\u00e0u v\u0169 tr\u1ee5 t\u1ef1 \u0111i\u1ec1u h\u01b0\u1edbng trong kh\u00f4ng gian gi\u1eefa c\u00e1c v\u00ec sao m\u00e0 kh\u00f4ng c\u1ea7n con ng\u01b0\u1eddi can thi\u1ec7p.<\/p>\n\n\n\n

\"M\u00f4
M\u00f4 ph\u1ecfng t\u00e0u v\u0169 tr\u1ee5 du h\u00e0nh trong m\u00f4i tr\u01b0\u1eddng li\u00ean sao. \u1ea2nh: Interstellar Research Centre.<\/em><\/figcaption><\/figure>\n\n\n\n

Du h\u00e0nh li\u00ean h\u00e0nh tinh \u0111\u00e3 \u0111\u1ee7 kh\u00f3, du h\u00e0nh xuy\u00ean kh\u00f4ng gian gi\u1eefa c\u00e1c v\u00ec sao c\u00f2n kh\u00f3 kh\u0103n h\u01a1n nhi\u1ec1u. K\u1ec3 t\u1eeb khi t\u00e0u v\u0169 tr\u1ee5 Voyager 1 v\u00e0 2 v\u01b0\u1ee3t qua ranh gi\u1edbi l\u00fd thuy\u1ebft \u1edf r\u00eca h\u1ec7 M\u1eb7t Tr\u1eddi, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 nh\u1eadt quy\u1ec3n, \u0111i\u1ec1u h\u01b0\u1edbng trong kh\u00f4ng gian li\u00ean sao tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng \u01b0u ti\u00ean c\u1ee7a nh\u00e2n lo\u1ea1i khi ch\u00fang ta ti\u1ebfp t\u1ee5c kh\u00e1m ph\u00e1 nh\u1eefng v\u00f9ng xa x\u00f4i c\u1ee7a thi\u00ean h\u00e0.<\/p>\n\n\n\n

Trong m\u1ed9t b\u00e1o c\u00e1o m\u1edbi tr\u00ean t\u1ea1p ch\u00ed arXiv<\/em>, c\u00e1c nh\u00e0 thi\u00ean v\u0103n h\u1ecdc t\u1eeb Vi\u1ec7n nghi\u00ean c\u1ee9u Max Planck do Ti\u1ebfn s\u0129 Coryn AL Bailer-Jones d\u1eabn \u0111\u1ea7u cho bi\u1ebft \u0111\u00e3 t\u00ecm ra c\u00e1ch \u0111\u1ec3 t\u00e0u v\u0169 tr\u1ee5 t\u1ef1 \u0111\u1ed9ng \u0111i\u1ec1u h\u01b0\u1edbng trong kh\u00f4ng gian s\u00e2u m\u00e0 kh\u00f4ng c\u1ea7n s\u1ef1 h\u01b0\u1edbng d\u1eabn c\u1ee7a con ng\u01b0\u1eddi.<\/p>\n\n\n\n

“Khi du h\u00e0nh \u0111\u1ebfn c\u00e1c ng\u00f4i sao g\u1ea7n nh\u1ea5t, t\u00edn hi\u1ec7u tr\u1edf n\u00ean qu\u00e1 y\u1ebfu \u0111\u1ec3 li\u00ean l\u1ea1c v\u1edbi Tr\u00e1i \u0110\u1ea5t. Do \u0111\u00f3, m\u1ed9t t\u00e0u v\u0169 tr\u1ee5 du h\u00e0nh li\u00ean sao ph\u1ea3i t\u1ef1 \u0111i\u1ec1u h\u01b0\u1edbng v\u00e0 s\u1eed d\u1ee5ng th\u00f4ng tin n\u00e0y \u0111\u1ec3 quy\u1ebft \u0111\u1ecbnh khi n\u00e0o c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh h\u00e0nh tr\u00ecnh ho\u1eb7c b\u1eadt c\u00e1c thi\u1ebft b\u1ecb khoa h\u1ecdc. \u0110\u1ec3 l\u00e0m \u0111\u01b0\u1ee3c \u0111i\u1ec1u n\u00e0y, n\u00f3 c\u1ea7n x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c v\u1ecb tr\u00ed v\u00e0 v\u1eadn t\u1ed1c ch\u1ec9 b\u1eb1ng c\u00e1c ph\u00e9p \u0111o tr\u00ean t\u00e0u”, Bailer-Jones cho bi\u1ebft.<\/p>\n\n\n\n

M\u00f4 h\u00ecnh \u0111i\u1ec1u h\u01b0\u1edbng c\u1ee7a Bailer-Jones s\u1eed d\u1ee5ng ba chi\u1ec1u kh\u00f4ng gian v\u00e0 ba chi\u1ec1u v\u1eadn t\u1ed1c, k\u1ebft h\u1ee3p v\u1edbi th\u00f4ng tin v\u1ec1 s\u1ef1 thay \u0111\u1ed5i v\u1ecb tr\u00ed c\u1ee7a ng\u00f4i sao li\u00ean quan \u0111\u1ebfn \u0111i\u1ec3m nh\u00ecn c\u1ee7a t\u00e0u v\u0169 tr\u1ee5, \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh t\u1ecda \u0111\u1ed9 c\u1ee7a con t\u00e0u trong kh\u00f4ng gian.<\/p>\n\n\n\n

“Khi m\u1ed9t t\u00e0u v\u0169 tr\u1ee5 bay ra xa M\u1eb7t Tr\u1eddi, v\u1ecb tr\u00ed quan s\u00e1t c\u1ee7a n\u00f3 v\u00e0 v\u1eadn t\u1ed1c c\u1ee7a c\u00e1c ng\u00f4i sao s\u1ebd thay \u0111\u1ed5i so v\u1edbi \u0111i\u1ec3m nh\u00ecn t\u1eeb Tr\u00e1i \u0110\u1ea5t do th\u1ecb sai, quang sai v\u00e0 hi\u1ec7u \u1ee9ng Doppler. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p t\u00ednh to\u00e1n s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ba \u0111i\u1ec3m nh\u00ecn v\u00e0 v\u1ecb tr\u00ed c\u1ee7a con t\u00e0u trong kh\u00f4ng gian, t\u1eeb \u0111\u00f3, ch\u00fang t\u00f4i c\u00f3 th\u1ec3 suy ra t\u1ecda \u0111\u1ed9 c\u1ee7a n\u00f3 th\u00f4ng qua qu\u00e1 tr\u00ecnh m\u00f4 h\u00ecnh h\u00f3a chuy\u1ec3n ti\u1ebfp l\u1eb7p \u0111i l\u1eb7p l\u1ea1i”, Bailer-Jones gi\u1ea3i th\u00edch.<\/p>\n\n\n\n

Th\u1ecb sai v\u00e0 quang sai \u0111\u1ec1 c\u1eadp \u0111\u1ebfn s\u1ef1 thay \u0111\u1ed5i r\u00f5 r\u00e0ng v\u1ec1 v\u1ecb tr\u00ed c\u1ee7a c\u00e1c ng\u00f4i sao do chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a Tr\u00e1i \u0110\u1ea5t. Hi\u1ec7u \u1ee9ng Doppler l\u00e0 s\u1ef1 thay \u0111\u1ed5i b\u01b0\u1edbc s\u00f3ng \u00e1nh s\u00e1ng t\u1eeb m\u1ed9t ng\u00f4i sao t\u00f9y thu\u1ed9c v\u00e0o vi\u1ec7c n\u00f3 \u0111ang \u0111\u1ebfn g\u1ea7n hay di chuy\u1ec3n ra xa ng\u01b0\u1eddi quan s\u00e1t. Do t\u1ea5t c\u1ea3 nh\u1eefng hi\u1ec7u \u1ee9ng n\u00e0y li\u00ean quan \u0111\u1ebfn v\u1ecb tr\u00ed t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a hai v\u1eadt th\u1ec3, v\u1eadt th\u1ec3 th\u1ee9 ba (t\u00e0u v\u0169 tr\u1ee5) \u1edf m\u1ed9t v\u1ecb tr\u00ed kh\u00e1c s\u1ebd th\u1ea5y \u0111\u01b0\u1ee3c s\u1ef1 s\u1eafp x\u1ebfp kh\u00e1c nhau c\u1ee7a c\u00e1c ng\u00f4i sao.<\/p>\n\n\n\n

Ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ecbnh h\u01b0\u1edbng m\u1edbi ch\u01b0a xem x\u00e9t c\u00e1c nh\u1ecb ph\u00e2n sao, c\u0169ng nh\u01b0 c\u00e1c c\u00f4ng c\u1ee5 \u0111o \u0111\u1ea1c. M\u1ee5c \u0111\u00edch ch\u1ec9 l\u00e0 \u0111\u1ec3 ki\u1ec3m tra t\u00ednh kh\u1ea3 thi, nh\u01b0 m\u1ed9t b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean \u0111\u1ec3 hi\u1ec7n th\u1ef1c h\u00f3a n\u00f3.<\/p>\n\n\n\n

\u0110o\u00e0n D\u01b0\u01a1ng<\/strong><\/p>\n\n\n\n

https:\/\/vnexpress.net\/phuong-phap-dieu-huong-trong-moi-truong-lien-sao-4252395.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00e1c nh\u00e0 thi\u00ean v\u0103n h\u1ecdc \u0111\u00e3 t\u00ecm ra c\u00e1ch \u0111\u1ec3 t\u00e0u v\u0169 tr\u1ee5 t\u1ef1 \u0111i\u1ec1u h\u01b0\u1edbng trong kh\u00f4ng gian gi\u1eefa c\u00e1c v\u00ec sao m\u00e0 kh\u00f4ng c\u1ea7n con ng\u01b0\u1eddi can thi\u1ec7p. Du h\u00e0nh li\u00ean h\u00e0nh tinh \u0111\u00e3 \u0111\u1ee7 kh\u00f3, du h\u00e0nh xuy\u00ean kh\u00f4ng gian gi\u1eefa c\u00e1c v\u00ec sao c\u00f2n kh\u00f3 kh\u0103n h\u01a1n nhi\u1ec1u. K\u1ec3 t\u1eeb khi […]<\/p>\n","protected":false},"author":23,"featured_media":26814,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-26813","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/26813","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=26813"}],"version-history":[{"count":4,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/26813\/revisions"}],"predecessor-version":[{"id":30957,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/26813\/revisions\/30957"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/26814"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=26813"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=26813"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=26813"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}