![\":)\"](\"https:\/\/tinhte.vn\/styles\/default\/xenforo\/clear.png\" "\\"Smile")
)<\/i><\/p>\nGi\u1ea3i Nobel\u00a0v\u1eadt l\u00fd n\u0103m nay thu\u1ed9c v\u1ec1 ba nh\u00e0 khoa h\u1ecdc l\u00e0 James Peebles, Michel Mayor v\u00e0 Didier Queloz v\u00ec s\u1ef1 nghi\u00ean c\u1ee9u \u0111\u1ec3 hi\u1ec3u r\u00f5 c\u1ea5u tr\u00fac v\u00e0 l\u1ecbch s\u1eed c\u1ee7a v\u0169 tr\u1ee5, \u0111\u1ed3ng th\u1eddi l\u00e0 m\u1ed9t c\u00f4ng tr\u00ecnh kh\u00e1m ph\u00e1 m\u1edbi v\u1ec1 m\u1ed9t h\u00e0nh tinh c\u00f3 qu\u1ef9 \u0111\u1ea1o quanh m\u1ed9t ng\u00f4i sao b\u00ean ngo\u00e0i h\u1ec7 M\u1eb7t tr\u1eddi c\u1ee7a ch\u00fang ta.<\/p>\n
Gi\u1ea3i th\u01b0\u1edfng \u0111\u01b0\u1ee3c chia l\u00e0m hai n\u1eeda, m\u1ed9t n\u1eeda d\u00e0nh ri\u00eang cho James Peebles v\u00e0 m\u1ed9t n\u1eeda chia \u0111\u1ec1u cho hai ng\u01b0\u1eddi c\u00f2n l\u1ea1i \u0111\u1ea1t gi\u1ea3i. James Peebles \u0111\u01b0\u1ee3c vinh danh v\u00ec \u0111\u00e3 c\u00f3 nh\u1eefng ph\u00e1t hi\u1ec7n l\u00fd thuy\u1ebft v\u1ec1 V\u0169 Tr\u1ee5, Michel Mayor v\u00e0 Didier Queloz \u0111\u00e3 ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c m\u1ed9t h\u00e0nh tinh ngo\u00e0i h\u1ec7 M\u1eb7t tr\u1eddi c\u00f3 qu\u1ef9 \u0111\u1ea1o xung quanh m\u1ed9t ng\u00f4i sao c\u00f9ng lo\u1ea1i v\u1edbi M\u1eb7t tr\u1eddi.<\/p>\n
Ph\u1ea7n b\u00ean d\u01b0\u1edbi l\u00e0 ph\u00e2n t\u00edch chuy\u00ean s\u00e2u t\u1eeb th\u00f4ng c\u00e1o c\u1ee7a\u00a0trang Nobel Prize<\/b>, anh em c\u00f3 th\u1ec3 b\u1ecf qua n\u1ebfu ng\u00e1n\u00a0)<\/i><\/p>\n
James Peebles \u0111\u00e3 nghi\u00ean c\u1ee9u chuy\u00ean s\u00e2u v\u00e0o c\u1ea5u tr\u00fac v\u0169 tr\u1ee5 v\u1edbi h\u00e0ng t\u1ec9 ng\u00f4i sao v\u00e0 thi\u00ean h\u00e0. L\u00fd thuy\u1ebft c\u1ee7a \u00f4ng ta \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng t\u1eeb gi\u1eefa nh\u1eefng n\u0103m 1960 t\u1edbi nay, v\u00e0 \u0111\u00f3 ch\u00ednh l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a nh\u1eefng g\u00ec hi\u1ec3u bi\u1ebft v\u1ec1 l\u1ecbch s\u1eed V\u0169 tr\u1ee5 c\u1ee7a ch\u00fang ta \u1edf th\u1eddi \u0111i\u1ec3m hi\u1ec7n t\u1ea1i, b\u1eaft ngu\u1ed3n t\u1eeb c\u1ed9t m\u1ed1c\u00a0Big Bang\u00a0t\u1edbi nay. Nh\u1eefng l\u00fd thuy\u1ebft n\u00e0y c\u00f2n bao g\u1ed3m c\u00e1ch nh\u00ecn nh\u1eadn c\u1ee7a lo\u00e0i ng\u01b0\u1eddi hi\u1ec7n nay v\u1ec1 m\u00f4i tr\u01b0\u1eddng v\u0169 tr\u1ee5, r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c v\u1eadt ch\u1ea5t v\u00e0 n\u0103ng l\u01b0\u1ee3ng th\u00f4ng th\u01b0\u1eddng ch\u1ec9 chi\u1ebfm kho\u1ea3ng 5%, s\u1ed1 c\u00f2n l\u1ea1i l\u00e0 v\u1eadt ch\u1ea5t t\u1ed1i v\u00e0 n\u0103ng l\u01b0\u1ee3ng t\u1ed1i, th\u1ee9 \u0111ang l\u00e0m \u0111au \u0111\u1ea7u v\u00e0 th\u00e1ch th\u1ee9c nh\u1eefng kh\u00e1m ph\u00e1 v\u1eadt l\u00fd trong t\u01b0\u01a1ng lai.<\/p>\n
V\u1ec1 ph\u1ea7n c\u1ee7a hai nh\u00e0 khoa h\u1ecdc Michel Mayor v\u00e0 Didier Queloz, h\u1ecd \u0111\u00e3 c\u00f4ng b\u1ed1 ph\u00e1t hi\u1ec7n c\u1ee7a h\u1ecd t\u1ea1i Florence, \u00dd, v\u00e0o ng\u00e0y 6\/10\/1995. H\u00e0nh tinh \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n \u0111\u1eb7t t\u00ean l\u00e0 51 Pegasi b l\u00e0 h\u00e0nh tinh \u0111\u1ea7u ti\u00ean ngo\u00e0i h\u1ec7 m\u1eb7t tr\u1eddi \u0111\u01b0\u1ee3c ch\u1ee9ng minh l\u00e0 c\u00f3 qu\u1ef9 \u0111\u1ea1o quay quanh m\u1ed9t ng\u00f4i sao c\u00f9ng lo\u1ea1i v\u1edbi M\u1eb7t tr\u1eddi c\u1ee7a ch\u00fang ta. H\u00e0nh tinh 51 Pegasi b n\u00e0y quay r\u1ea5t nhanh xung quanh ng\u00f4i sao ch\u1ee7 c\u1ee7a n\u00f3 l\u00e0 51 Pegasi, c\u00e1ch ch\u00fang ta kho\u1ea3ng 50 n\u0103m \u00e1nh s\u00e1ng. H\u00e0nh tinh n\u00e0y m\u1ea5t 4 ng\u00e0y \u0111\u1ec3 ho\u00e0n th\u00e0nh m\u1ed9t qu\u1ef9 \u0111\u1ea1o quay, ngh\u0129a l\u00e0 c\u00e1ch kho\u1ea3ng 8 tri\u1ec7u km so v\u1edbi ng\u00f4i sao ch\u1ee7. Vi\u1ec7c n\u00f3 qu\u00e1 g\u1ea7n d\u1eabn \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 c\u1ee7a n\u00f3 l\u00ean t\u1edbi h\u01a1n 1000 \u0111\u1ed9 C. \u0110\u1ec3 ti\u1ec7n so s\u00e1nh th\u00ec Tr\u00e1i \u0111\u1ea5t ch\u00fang ta c\u00e1ch ng\u00f4i sao ch\u1ee7 l\u00e0 M\u1eb7t tr\u1eddi \u0111\u1ebfn 150 tri\u1ec7u km.<\/p>\n \u0110i\u1ec1u k\u00ec l\u1ea1 h\u01a1n l\u00e0, h\u00e0nh tinh \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n l\u00e0 m\u1ed9t h\u00e0nh tinh kh\u00ed gas kh\u1ed5ng l\u1ed3 c\u00f3 k\u00edch th\u01b0\u1edbc t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi Sao M\u1ed9c c\u1ee7a h\u1ec7 M\u1eb7t tr\u1eddi – h\u00e0nh tinh l\u1edbn nh\u1ea5t trong gia \u0111\u00ecnh c\u1ee7a ch\u00fang ta. Th\u00f4ng th\u01b0\u1eddng theo l\u00fd thuy\u1ebft, nh\u1eefng h\u00e0nh tinh to l\u1edbn nh\u01b0 v\u1eady s\u1ebd ph\u1ea3i \u0111\u01b0\u1ee3c t\u1ea1o ra c\u00e1ch xa ng\u00f4i sao ch\u1ee7 v\u00e0 th\u01b0\u1eddng m\u1ea5t r\u1ea5t nhi\u1ec1u th\u1eddi gian \u0111\u1ec3 quay h\u1ebft m\u1ed9t v\u00f2ng. Sao M\u1ed9c v\u1ed1n m\u1ea5t t\u1edbi 12 n\u0103m \u0111\u1ec3 ho\u00e0n th\u00e0nh chu k\u00ec quanh M\u1eb7t tr\u1eddi, do \u0111\u00f3 vi\u1ec7c 51 Pegasi b ch\u1ec9 m\u1ea5t 4 ng\u00e0y \u0111\u00e3 l\u00e0m r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi b\u1ea5t ng\u1edd. V\u00e0 ch\u00ednh \u0111i\u1ec1u n\u00e0y l\u1ea1i \u0111\u1eb7t ra m\u1ed9t c\u00e2u h\u1ecfi m\u1edbi, sao n\u00f3 c\u00f3 th\u1ec3 g\u1ea7n ng\u00f4i sao ch\u1ee7 \u0111\u1ebfn nh\u01b0 th\u1ebf. C\u00f3 th\u1ec3 s\u1ef1 ki\u1ec7n n\u00e0y s\u1ebd \u0111\u01b0a ra nh\u1eefng l\u00fd thuy\u1ebft m\u1edbi v\u1ec1 ngu\u1ed3n g\u1ed1c v\u00e0 c\u00e1ch m\u00e0 nh\u1eefng h\u00e0nh tinh kh\u00ed gas kh\u1ed5ng l\u1ed3 \u0111\u01b0\u1ee3c t\u1ea1o ra.<\/p>\n \u0110\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n n\u00e0y, ch\u00fang ta ph\u1ea3i nghi\u00ean c\u1ee9u k\u0129 ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 theo d\u00f5i c\u00e1c ngo\u1ea1i h\u00e0nh tinh. B\u1ea3n th\u00e2n nh\u1eefng h\u00e0nh tinh kh\u00f4ng ph\u00e1t s\u00e1ng, n\u00f3 ch\u1ec9 ph\u1ea3n chi\u1ebfu \u00e1nh s\u00e1ng t\u1eeb ng\u00f4i sao ch\u1ee7, v\u00e0 \u00e1nh s\u00e1ng n\u00e0y c\u0169ng qu\u00e1 y\u1ebfu n\u00ean s\u1ebd b\u1ecb che l\u1ea5p b\u1edfi \u00e1nh s\u00e1ng t\u1eeb ng\u00f4i sao. Do \u0111\u00f3 ng\u01b0\u1eddi ta \u0111\u1ec1 xu\u1ea5t m\u1ed9t c\u00e1ch \u0111\u1ec3 t\u00ecm t\u1ea1m g\u1ecdi l\u00e0 ph\u01b0\u01a1ng ph\u00e1p v\u1eadn t\u1ed1c h\u01b0\u1edbng t\u00e2m. N\u00f3 \u0111o c\u00e1c chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a ng\u00f4i sao ch\u1ee7 khi b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi l\u1ef1c h\u00fat c\u1ee7a h\u00e0nh tinh quanh n\u00f3.<\/p>\n Nh\u01b0 ch\u00fang ta \u0111\u1ea7u bi\u1ebft c\u00e1c v\u1eadt ch\u1ea5t lu\u00f4n \u1ea3nh h\u01b0\u1edfng l\u1ef1c t\u1edbi nhau, v\u00e0 h\u00e0nh tinh c\u0169ng s\u1ebd \u1ea3nh h\u01b0\u1edfng l\u1ef1c h\u00fat \u0111\u1ebfn ng\u00f4i sao c\u1ee7a n\u00f3. Khi h\u00e0nh tinh di chuy\u1ec3n, ng\u00f4i sao c\u0169ng s\u1ebd b\u1ecb d\u1ecbch chuy\u1ec3n nh\u1eb9 v\u00e0 c\u1ea3 hai s\u1ebd quay quanh nhau xung quanh m\u1ed9t tr\u1ecdng t\u00e2m chung. N\u1ebfu quan s\u00e1t t\u1eeb tr\u00e1i \u0111\u1ea5t, ch\u00fang ta s\u1ebd nh\u1eadn th\u1ea5y ng\u00f4i sao s\u1ebd chao \u0111\u1ea3o.<\/p>\n T\u1ed1c \u0111\u1ed9 d\u1ecbch chuy\u1ec3n, v\u1eadn t\u1ed1c h\u01b0\u1edbng t\u00e2m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng hi\u1ec7u \u1ee9ng Doppler. N\u1ebfu ng\u00f4i sao d\u1ecbch chuy\u1ec3n l\u1ea1i g\u1ea7n Tr\u00e1i \u0111\u1ea5t v\u00e0 xa ra kh\u1ecfi Tr\u00e1i \u0111\u1ea5t, m\u00e0u s\u1eafc c\u1ee7a c\u00e1c tia s\u00e1ng s\u1ebd kh\u00e1c nhau do b\u1ecb thay \u0111\u1ed5i t\u1ea7n s\u1ed1 \u00e1nh s\u00e1ng. C\u1ee5 th\u1ec3 l\u00e0 n\u1ebfu d\u1ecbch chuy\u1ec3n g\u1ea7n v\u1ec1 tr\u00e1i \u0111\u1ea5t h\u01a1n th\u00ec m\u00e0u s\u1ebd xanh h\u01a1n, v\u00e0 n\u1ebfu xa tr\u00e1i \u0111\u1ea5t h\u01a1n th\u00ec m\u00e0u s\u1ebd \u0111\u1ecf h\u01a1n. T\u01b0\u01a1ng t\u1ef1 nh\u01b0 \u00e2m thanh t\u1eeb coi h\u1ee5 xe c\u1ee9u th\u01b0\u01a1ng s\u1ebd c\u00f3 cao \u0111\u1ed9 kh\u00e1c nhau khi n\u00f3 ch\u1ea1y l\u1ea1i g\u1ea7n hay ra xa ch\u00fang ta \u1ea5y\u00a0 \u0110i\u1ec1u m\u00e0 l\u00e0m cho vi\u1ec7c \u0111o \u0111\u1ea1c di\u1ec5n ra kh\u00f3 kh\u0103n \u0111\u00f3 l\u00e0 do v\u1eadt t\u1ed1c n\u00e0y c\u1ef1c k\u00ec th\u1ea5p. V\u00ed d\u1ee5, Sao M\u1ed9c l\u00e0m cho M\u1eb7t tr\u1eddi di chuy\u1ec3n kho\u1ea3ng 12m\/s quanh t\u00e2m c\u1ee7a h\u1ec7 M\u1eb7t tr\u1eddi. C\u00f2n Tr\u00e1i \u0111\u1ea5t l\u00e0m M\u1eb7t tr\u1eddi ch\u1ec9 di chuy\u1ec3n kho\u1ea3ng 0.09m\/s m\u00e0 th\u00f4i. \u0110i\u1ec1u n\u00e0y ph\u1ee5 thu\u1ed9c c\u1ef1c nhi\u1ec1u v\u00e0o \u0111\u1ed9 nh\u1ea1y c\u1ee7a c\u00e1c c\u00f4ng c\u1ee5 \u0111o m\u00e0 con ng\u01b0\u1eddi t\u1ea1o ra. \u0110\u1ec3 t\u0103ng \u0111\u1ed9 ch\u00ednh x\u00e1c, c\u00e1c nh\u00e0 khoa h\u1ecdc n\u00e0y \u0111\u00e3 ph\u1ea3i \u0111o h\u00e0ng ng\u00e0n b\u01b0\u1edbc s\u00f3ng m\u1ed9t l\u00fac b\u1eb1ng m\u00e1y \u0111o quang ph\u1ed5.<\/p>\n Vi\u1ec7c ph\u00e1t hi\u1ec7n n\u00e0y s\u1ebd m\u1edf ra m\u1ed9t cu\u1ed9c c\u00e1ch m\u1ea1ng trong gi\u1edbi thi\u00ean v\u0103n h\u1ecdc. H\u00e0ng ng\u00e0n th\u1ebf gi\u1edbi m\u1edbi trong v\u0169 tr\u1ee5 \u0111\u00e3 v\u00e0 \u0111ang \u0111\u01b0\u1ee3c ch\u00fang ta kh\u00e1m ph\u00e1. TESS, k\u00ednh thi\u00ean v\u0103n kh\u00f4ng gian c\u1ee7a M\u1ef9 \u0111\u00e3 scan \u0111\u01b0\u1ee3c h\u01a1n 200.000 ng\u00f4i sao g\u1ea7n ch\u00fang ta, v\u00e0 ch\u00fang ta v\u1eabn \u0111ang t\u00ecm m\u1ed9t h\u00e0nh tinh g\u1ea7n gi\u1ed1ng v\u1edbi Tr\u00e1i \u0111\u1ea5t. Vi\u1ec7c d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p tr\u00ean c\u00f3 th\u1ec3 s\u1ebd gi\u00fap vi\u1ec7c t\u00ecm ki\u1ebfm c\u00e1c ngo\u1ea1i h\u00e0nh tinh tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n.<\/p>\n B\u00ean c\u1ea1nh ph\u01b0\u01a1ng ph\u00e1p v\u1eadn t\u1ed1c h\u01b0\u1edbng t\u00e2m, ch\u00fang ta c\u0169ng c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n m\u1ed9t h\u00e0nh tinh quanh m\u1ed9t ng\u00f4i sao b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p Quang tr\u1eafc \u0111i chuy\u1ec3n (Transit Photometry – t\u1ea1m d\u1ecbch l\u00e0 nh\u01b0 v\u1eady \u0111i), n\u00f3 \u0111\u01a1n gi\u1ea3n l\u00e0 s\u1ebd th\u1ea5y \u0111\u01b0\u1ee3c \u0111\u1ed9 s\u00e1ng b\u1ecb gi\u1ea3m khi m\u1ed9t h\u00e0nh tinh di chuy\u1ec3n qua \u0111\u01b0\u1eddng quan s\u00e1t gi\u1eefa Tr\u00e1i \u0111\u1ea5t v\u00e0 ng\u00f4i sao. C\u1ea3 hai ph\u01b0\u01a1ng ph\u00e1p tr\u00ean s\u1ebd gi\u00fap ch\u00fang ta x\u00e1c \u0111\u1ecbnh ngo\u1ea1i h\u00e0nh tinh d\u1ec5 d\u00e0ng h\u01a1n, Tr\u1eafc quang gi\u00fap ch\u00fang ta bi\u1ebft \u0111\u01b0\u1ee3c k\u00edch th\u01b0\u1edbc, trong khi \u0111\u00f3 V\u1eadn t\u1ed1c h\u01b0\u1edbng t\u00e2m s\u1ebd gi\u00fap ch\u00fang ta bi\u1ebft \u0111\u01b0\u1ee3c kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a n\u00f3, t\u1eeb \u0111\u00f3 t\u00ednh \u0111\u01b0\u1ee3c m\u1eadt \u0111\u1ed9 v\u00e0 c\u1ea5u tr\u00fac c\u1ee7a v\u1eadt th\u1ec3.<\/p>\n Ngu\u1ed3n:\u00a0https:\/\/tinhte.vn\/threads\/nobel-vat-ly-2019-vinh-danh-dong-gop-cua-3-nha-khoa-hoc-ve-viec-kham-pha-vu-tru.3024017\/?utm_campaign=related_threads&utm_medium=tags&utm_source=internal<\/p>\n","protected":false},"excerpt":{"rendered":" Gi\u1ea3i Nobel\u00a0v\u1eadt l\u00fd n\u0103m nay thu\u1ed9c v\u1ec1 ba nh\u00e0 khoa h\u1ecdc l\u00e0 James Peebles, Michel Mayor v\u00e0 Didier Queloz v\u00ec s\u1ef1 nghi\u00ean c\u1ee9u \u0111\u1ec3 hi\u1ec3u r\u00f5 c\u1ea5u tr\u00fac v\u00e0 l\u1ecbch s\u1eed c\u1ee7a v\u0169 tr\u1ee5, \u0111\u1ed3ng th\u1eddi l\u00e0 m\u1ed9t c\u00f4ng tr\u00ecnh kh\u00e1m ph\u00e1 m\u1edbi v\u1ec1 m\u1ed9t h\u00e0nh tinh c\u00f3 qu\u1ef9 \u0111\u1ea1o quanh m\u1ed9t ng\u00f4i sao b\u00ean ngo\u00e0i h\u1ec7 M\u1eb7t tr\u1eddi c\u1ee7a ch\u00fang ta.<\/p>\n","protected":false},"author":1,"featured_media":2200,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[13],"tags":[],"class_list":["post-2195","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc","cat-13-id"],"_links":{"self":[{"href":"https:\/\/lawfirmelite.com\/vi\/wp-json\/wp\/v2\/posts\/2195"}],"collection":[{"href":"https:\/\/lawfirmelite.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lawfirmelite.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lawfirmelite.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lawfirmelite.com\/vi\/wp-json\/wp\/v2\/comments?post=2195"}],"version-history":[{"count":3,"href":"https:\/\/lawfirmelite.com\/vi\/wp-json\/wp\/v2\/posts\/2195\/revisions"}],"predecessor-version":[{"id":2334,"href":"https:\/\/lawfirmelite.com\/vi\/wp-json\/wp\/v2\/posts\/2195\/revisions\/2334"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lawfirmelite.com\/vi\/wp-json\/wp\/v2\/media\/2200"}],"wp:attachment":[{"href":"https:\/\/lawfirmelite.com\/vi\/wp-json\/wp\/v2\/media?parent=2195"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lawfirmelite.com\/vi\/wp-json\/wp\/v2\/categories?post=2195"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lawfirmelite.com\/vi\/wp-json\/wp\/v2\/tags?post=2195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\u0110ang](\"https:\/\/photo2.tinhte.vn\/data\/attachment-files\/2019\/10\/4800792_background-radiation.jpg\" "\\"background-radiation.jpg\\"")
<\/span><\/span><\/p>\n![\"\u0110ang](\"https:\/\/photo2.tinhte.vn\/data\/attachment-files\/2019\/10\/4800791_starchart.jpg\" "\\"starchart.jpg\\"")
<\/span><\/span><\/p>\n![\"\u0110ang](\"https:\/\/photo2.tinhte.vn\/data\/attachment-files\/2019\/10\/4800793_radialvelocitymethod.jpg\" "\\"radialvelocitymethod.jpg\\"")
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