{"id":5042,"date":"2019-05-31T06:55:00","date_gmt":"2019-05-31T06:55:00","guid":{"rendered":"https:\/\/research.vnuhcm.edu.vn\/?p=5042"},"modified":"2023-07-06T03:18:19","modified_gmt":"2023-07-06T03:18:19","slug":"bi-an-ve-lo-den-vu-tru-dan-buoc-ra-anh-sang","status":"publish","type":"post","link":"https:\/\/research.vnuhcm.edu.vn\/index.php\/vi\/2019\/05\/31\/bi-an-ve-lo-den-vu-tru-dan-buoc-ra-anh-sang\/","title":{"rendered":"B\u00ed \u1ea9n v\u1ec1 l\u1ed7 \u0111en v\u0169 tr\u1ee5 d\u1ea7n b\u01b0\u1edbc ra… \u00e1nh s\u00e1ng"},"content":{"rendered":"\t\t
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B\u00ed \u1ea9n v\u1ec1 l\u1ed7 \u0111en v\u0169 tr\u1ee5 d\u1ea7n b\u01b0\u1edbc ra... \u00e1nh s\u00e1ng<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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B\u1ee9c \u1ea3nh ch\u1ee5p h\u1ed1 \u0111en \u0111\u1ea7u ti\u00ean trong l\u1ecbch s\u1eed nh\u00e2n lo\u1ea1i \u0111\u00e3 ch\u1ee9ng th\u1ef1c ti\u00ean \u0111o\u00e1n 104 n\u0103m tr\u01b0\u1edbc c\u1ee7a Albert Einstein v\u1ec1 s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a h\u1ed1 \u0111en. N\u00f3 \u0111\u01b0\u1ee3c c\u00e1c nh\u00e0 khoa h\u1ecdc thu\u1ed9c Ch\u01b0\u01a1ng tr\u00ecnh K\u00ednh thi\u00ean v\u0103n Ch\u00e2n tr\u1eddi s\u1ef1 ki\u1ec7n (EHT) c\u00f4ng b\u1ed1 v\u00e0o th\u00e1ng 4 n\u0103m nay v\u1edbi s\u1ef1 tham gia c\u1ee7a h\u01a1n 200 nh\u00e0 khoa h\u1ecdc, s\u1eed d\u1ee5ng m\u1ea1ng l\u01b0\u1edbi k\u00ednh thi\u00ean v\u0103n to\u00e0n c\u1ea7u \u0111\u1ec3 quan s\u00e1t v\u00e0 ch\u1ee5p l\u1ea1i b\u1ee9c \u1ea3nh \u0111\u1eb7c bi\u1ec7t n\u00e0y.<\/span><\/p>

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H\u00ecnh \u1ea3nh \u0111\u1ea7u ti\u00ean v\u1ec1 m\u1ed9t l\u1ed7 \u0111en v\u00e0 \u0111\u0129a b\u1ed3i t\u1ee5 c\u1ee7a n\u00f3.\u00a0\u1ea2nh<\/em>:\u00a0REUTERS<\/span><\/figcaption><\/figure><\/div>

N\u1ed7 l\u1ef1c trong h\u01a1n m\u1ed9t th\u1eadp k\u1ef7<\/span><\/span><\/span><\/p>

L\u1ed7 \u0111en \u0111\u01b0\u1ee3c ch\u1ee5p l\u1ea1i l\u00e0 l\u1ed7 \u0111en si\u00eau tr\u1ecdng \u1edf trung t\u00e2m thi\u00ean h\u00e0 M87 (Messier 87), n\u1eb1m g\u1ea7n c\u1ee5m thi\u00ean h\u00e0 Virgo, c\u00e1ch Tr\u00e1i \u0111\u1ea5t 55 tri\u1ec7u n\u0103m \u00e1nh s\u00e1ng v\u00e0 n\u1eb7ng g\u1ea5p 6,5 t\u1ef7 l\u1ea7n kh\u1ed1i l\u01b0\u1ee3ng M\u1eb7t tr\u1eddi. \u0110\u00e2y \u0111\u01b0\u1ee3c cho l\u00e0 b\u1eb1ng ch\u1ee9ng th\u1ecb gi\u00e1c tr\u1ef1c ti\u1ebfp v\u00e0 \u0111\u1ea7u ti\u00ean v\u1ec1 s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a l\u1ed7 \u0111en trong th\u1ef1c t\u1ebf. Trong b\u1ee9c \u1ea3nh, m\u1ed9t trung t\u00e2m t\u1ed1i \u0111en n\u1eb1m g\u1ecdn trong m\u1ed9t v\u1ea7ng s\u00e1ng c\u00f3 m\u1ed9t b\u00ean tr\u00f4ng s\u00e1ng h\u01a1n b\u00ean c\u00f2n l\u1ea1i. \u201cCh\u00fang t\u00f4i \u0111\u00e3 nh\u00ecn th\u1ea5y th\u1ee9 m\u00e0 ch\u00fang t\u00f4i ngh\u0129 l\u00e0 kh\u00f4ng kh\u1ea3 ki\u1ebfn. Ch\u00fang t\u00f4i \u0111\u00e3 th\u1ea5y v\u00e0 ch\u1ee5p \u0111\u01b0\u1ee3c h\u00ecnh m\u1ed9t l\u1ed7 \u0111en\u201d – Shepard Doeleman, gi\u00e1m \u0111\u1ed1c Ch\u01b0\u01a1ng tr\u00ecnh K\u00ednh thi\u00ean v\u0103n Ch\u00e2n tr\u1eddi s\u1ef1 ki\u1ec7n EHT (Event Horizon Telescope Collaboration), b\u00e0y t\u1ecf.<\/span><\/span><\/p>

EHT l\u00e0 m\u1ea1ng l\u01b0\u1edbi to\u00e0n c\u1ea7u c\u00e1c k\u00ednh thi\u00ean v\u0103n \u0111\u00e3 ch\u1ee5p \u0111\u01b0\u1ee3c b\u1ee9c \u1ea3nh l\u1ecbch s\u1eed \u1ea5y. C\u00f3 h\u01a1n 200 nh\u00e0 nghi\u00ean c\u1ee9u tham gia v\u00e0o d\u1ef1 \u00e1n v\u00e0 d\u00e0nh ra h\u01a1n m\u1ed9t th\u1eadp k\u1ef7 l\u00e0m vi\u1ec7c r\u00f2ng r\u00e3 \u0111\u1ec3 c\u00f3 th\u1ec3 ch\u1ee5p \u0111\u01b0\u1ee3c b\u1ee9c \u1ea3nh n\u00e0y. \u0110\u1ec3 ch\u1ee5p \u0111\u01b0\u1ee3c h\u00ecnh \u1ea3nh c\u1ee7a l\u1ed7 \u0111en, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 k\u1ebft n\u1ed1i 8 k\u00ednh vi\u1ec5n v\u1ecdng v\u00f4 tuy\u1ebfn kh\u1eafp th\u1ebf gi\u1edbi, s\u1eed d\u1ee5ng k\u1ef9 thu\u1eadt \u201cph\u00e9p \u0111o giao thoa \u0111\u01b0\u1eddng g\u1ed1c r\u1ea5t d\u00e0i\u201d (VLBI – Very Long Baseline Interferometry). K\u1ef9 thu\u1eadt n\u00e0y cho ph\u00e9p t\u1ea1o ra m\u1ed9t \u201ck\u00ednh vi\u1ec5n v\u1ecdng \u1ea3o\u201d v\u1edbi k\u00edch th\u01b0\u1edbc t\u01b0\u01a1ng \u0111\u01b0\u01a1ng Tr\u00e1i \u0111\u1ea5t.<\/span><\/span><\/p>

\u201cCu\u1ed9c quan s\u00e1t nh\u01b0 m\u1ed9t v\u0169 \u0111i\u1ec7u ph\u1ed1i h\u1ee3p, ch\u00fang t\u00f4i \u0111\u1ed3ng th\u1eddi h\u01b0\u1edbng k\u00ednh vi\u1ec5n v\u1ecdng theo m\u1ed9t tr\u1eadt t\u1ef1 \u0111\u00e3 \u0111\u01b0\u1ee3c ho\u1ea1ch \u0111\u1ecbnh k\u1ef9 c\u00e0ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e1c quan s\u00e1t l\u00e0 ho\u00e0n to\u00e0n \u0111\u1ed3ng th\u1eddi v\u1edbi m\u1ee5c \u0111\u00edch th\u1ea5y c\u00f9ng m\u1ed9t m\u1eb7t s\u00f3ng \u00e1nh s\u00e1ng \u0111i \u0111\u1ebfn t\u1eebng k\u00ednh, v\u00e0 m\u1ed7i k\u00ednh \u0111\u01b0\u1ee3c canh th\u1eddi gian b\u1edfi c\u00e1c \u0111\u1ed3ng h\u1ed3 nguy\u00ean t\u1eed v\u00f4 c\u00f9ng ch\u00ednh x\u00e1c\u201d – Ph\u00f3 Gi\u00e1o s\u01b0 thi\u00ean v\u0103n h\u1ecdc Daniel Marrone c\u1ee7a \u0110\u1ea1i h\u1ecdc Arizona cho hay.<\/span><\/span><\/p>

Chu\u1ed7i k\u00ednh thi\u00ean v\u0103n \u0111\u00e3 thu th\u1eadp \u0111\u01b0\u1ee3c 5 tri\u1ec7u t\u1ef7 bytes d\u1eef li\u1ec7u trong v\u00f2ng 2 tu\u1ea7n, \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1edfi c\u00e1c si\u00eau m\u00e1y t\u00ednh \u0111\u1ec3 c\u00f3 th\u1ec3 truy xu\u1ea5t h\u00ecnh \u1ea3nh t\u1ed1t nh\u1ea5t v\u1ec1 l\u1ed7 \u0111en. Kho\u1ea3ng 2 t\u1ef7 h\u00ecnh \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p. Tuy nhi\u00ean, nh\u1eefng m\u1ea3nh gh\u00e9p r\u1eddi r\u1ea1c n\u00e0y kh\u00f4ng cho ch\u00fang ta th\u1ea5y h\u00ecnh \u1ea3nh r\u00f5 r\u00e0ng v\u1ec1 l\u1ed7 \u0111en. \u0110\u1ec3 c\u00f3 th\u1ec3 t\u1ea1o l\u1eadp b\u1ee9c \u1ea3nh t\u1ed1t nh\u1ea5t, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 l\u00e0m thu\u1eadt to\u00e1n x\u1eed l\u00fd h\u00ecnh \u1ea3nh \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n ch\u1ee7 y\u1ebfu b\u1edfi nh\u00e0 khoa h\u1ecdc tr\u1ebb Katie Bouman.<\/span><\/span><\/p>

Tr\u1edf v\u1ec1 v\u1edbi Thuy\u1ebft t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a Einstein, l\u00fd thuy\u1ebft n\u00e0y d\u1ef1 \u0111o\u00e1n trong v\u0169 tr\u1ee5 c\u00f3 nh\u1eefng v\u00f9ng m\u00e0 \u1edf \u0111\u00f3 m\u1eadt \u0111\u1ed9 v\u1eadt ch\u1ea5t l\u1edbn \u0111\u1ebfn n\u1ed7i l\u1ef1c h\u1ea5p d\u1eabn l\u00e0 qu\u00e1 m\u1ea1nh khi\u1ebfn v\u1eadt ch\u1ea5t kh\u00f4ng th\u1ec3 tho\u00e1t ra \u0111\u01b0\u1ee3c, k\u1ec3 c\u1ea3 \u00e1nh s\u00e1ng. L\u1ed7 \u0111en r\u1ea5t c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t v\u00f9ng nh\u01b0 th\u1ebf. Gi\u1edbi h\u1ea1n xung quanh l\u1ed7 \u0111en m\u00e0 v\u1eadt ch\u1ea5t, \u00e1nh s\u00e1ng v\u00e0 b\u1ee9c x\u1ea1 kh\u00f4ng th\u1ec3 tho\u00e1t ra \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ch\u00e2n tr\u1eddi s\u1ef1 ki\u1ec7n. C\u00e1c nh\u00e0 khoa h\u1ecdc cho r\u1eb1ng l\u1ed7 \u0111en nung n\u00f3ng c\u1ef1c \u0111\u1ed9 c\u00e1c v\u1eadt ch\u1ea5t bao quanh t\u1ea1o ra th\u1ee9 g\u1ecdi l\u00e0 \u0111\u0129a b\u1ed3i t\u1ee5, c\u0169ng nh\u01b0 c\u00f3 th\u1ec3 b\u1ebb cong kh\u00f4ng – th\u1eddi gian. L\u00fd thuy\u1ebft n\u00e0y c\u0169ng g\u1ee3i \u00fd r\u1eb1ng n\u1ebfu v\u1eadt ch\u1ea5t n\u00f3ng \u0111\u00f3 d\u01b0\u1edbi d\u1ea1ng plasma v\u00e0 ph\u00e1t ra b\u1ee9c x\u1ea1 \u0111i\u1ec7n t\u1eeb d\u01b0\u1edbi d\u1ea1ng \u00e1nh s\u00e1ng th\u00ec \u0111i\u1ec1u \u0111\u00f3 c\u00f3 th\u1ec3 khi\u1ebfn l\u1ed7 \u0111en kh\u1ea3 ki\u1ebfn. V\u1ea7ng s\u00e1ng trong b\u1ee9c \u1ea3nh ch\u1ee5p l\u1ed7 \u0111en ch\u00ednh l\u00e0 m\u1ed9t \u0111\u0129a b\u1ed3i t\u1ee5 nh\u01b0 th\u1ebf.<\/span><\/span><\/p>

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C\u00e1c nh\u00e0 khoa h\u1ecdc c\u00f4ng b\u1ed1 b\u1ee9c \u1ea3nh t\u1ea1i h\u1ecdp b\u00e1o v\u00e0o ng\u00e0y 10\/4 \u1edf Washington.\u00a0\u1ea2nh<\/em>:\u00a0Chip Somodevilla<\/span><\/figcaption><\/figure><\/div>

\u0110\u1ed9ng l\u1ef1c \u0111\u1ec3 gi\u1ea3i m\u00e3 l\u1ed7 \u0111en<\/span><\/span><\/span><\/p>

Vi\u1ec7c quan s\u00e1t \u0111\u01b0\u1ee3c l\u1ed7 \u0111en \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c Thuy\u1ebft t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a Einstein l\u1ea7n n\u1eefa c\u00f3 th\u00eam m\u1ed9t ch\u1ee9ng minh v\u1ec1 t\u00ednh \u0111\u00fang \u0111\u1eafn c\u1ee7a n\u00f3. \u0110\u00e2y l\u00e0 m\u1ed9t cu\u1ed9c c\u00e1ch m\u1ea1ng k\u1ec3 t\u1eeb sau c\u00e1c ch\u1ee9ng c\u1ee9 v\u1ec1 \u00e1nh s\u00e1ng b\u1ecb b\u1ebb cong hay s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a s\u00f3ng h\u1ea5p d\u1eabn, v\u1ed1n c\u0169ng \u0111\u01b0\u1ee3c ti\u00ean \u0111o\u00e1n b\u1edfi thuy\u1ebft n\u00e0y. \u201cN\u1ebfu l\u1ed7 \u0111en \u0111i v\u00e0o m\u1ed9t v\u00f9ng v\u1eadt ch\u1ea5t s\u00e1ng, nh\u01b0 m\u1ed9t \u0111\u00e1m kh\u00ed ph\u00e1t quang, ch\u00fang t\u00f4i k\u1ef3 v\u1ecdng r\u1eb1ng n\u00f3 s\u1ebd t\u1ea1o ra m\u1ed9t v\u00f9ng b\u00f3ng t\u1ed1i nh\u01b0 Thuy\u1ebft t\u01b0\u01a1ng \u0111\u1ed1i t\u1eeb d\u1ef1 \u0111o\u00e1n nh\u01b0ng ch\u01b0a t\u1eebng \u0111\u01b0\u1ee3c quan s\u00e1t. V\u00f9ng t\u1ed1i n\u00e0y, do s\u1ef1 b\u1ebb cong b\u1edfi l\u1ef1c h\u1ea5p d\u1eabn c\u1ed9ng th\u00eam s\u1ef1 b\u1eaft gi\u1eef \u00e1nh s\u00e1ng b\u1edfi ch\u00e2n tr\u1eddi s\u1ef1 ki\u1ec7n, c\u00f3 th\u1ec3 ti\u1ebft l\u1ed9 r\u1ea5t nhi\u1ec1u \u0111i\u1ec1u v\u1ec1 b\u1ea3n ch\u1ea5t c\u1ee7a nh\u1eefng v\u1eadt th\u1ec3 k\u1ef3 di\u1ec7u n\u00e0y v\u00e0 cho ph\u00e9p ch\u00fang t\u00f4i ti\u1ebfn h\u00e0nh \u0111o \u0111\u1ea1c kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed5ng l\u1ed3 c\u1ee7a h\u1ed1 \u0111en thi\u00ean h\u00e0 M87\u201d – Heino Falcke, Ch\u1ee7 t\u1ecbch H\u1ed9i \u0111\u1ed3ng Khoa h\u1ecdc EHT, chia s\u1ebb.<\/span><\/span><\/p>

L\u1ed7 \u0111en c\u1ee7a thi\u00ean h\u00e0 M87 mang kh\u1ed1i l\u01b0\u1ee3ng v\u00f4 c\u00f9ng l\u1edbn, khi\u1ebfn c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u tin r\u1eb1ng n\u00f3 l\u00e0 l\u1ed7 \u0111en l\u1edbn nh\u1ea5t c\u00f3 th\u1ec3 quan s\u00e1t t\u1eeb Tr\u00e1i \u0111\u1ea5t. Tuy nhi\u00ean tr\u00ean th\u1ef1c t\u1ebf, khi so s\u00e1nh v\u1edbi c\u00e1c v\u1eadt th\u1ec3 kh\u00e1c trong v\u0169 tr\u1ee5, c\u00e1c l\u1ed7 \u0111en si\u00eau tr\u1ecdng nh\u1ecf h\u01a1n nhi\u1ec1u. \u0110\u00f3 l\u00e0 l\u00fd do m\u00e0 tr\u01b0\u1edbc \u0111\u00e2y ch\u00fang ta kh\u00f3 c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n ra ch\u00fang. K\u00edch th\u01b0\u1edbc c\u1ee7a m\u1ed9t l\u1ed7 \u0111en c\u00f3 li\u00ean quan tr\u1ef1c ti\u1ebfp \u0111\u1ebfn kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a n\u00f3 v\u00e0 l\u1ed7 \u0111en c\u00e0ng l\u1edbn th\u00ec v\u00f9ng b\u00f3ng t\u1ed1i c\u00e0ng l\u1edbn. Ch\u00fang d\u01b0\u1eddng nh\u01b0 v\u00f4 h\u00ecnh, nh\u01b0ng may thay, c\u00e1ch m\u00e0 ch\u00fang t\u01b0\u01a1ng t\u00e1c v\u1edbi v\u1eadt ch\u1ea5t xung quanh ch\u00ednh l\u00e0 m\u1ed9t m\u00f3n qu\u00e0 d\u00e0nh t\u1eb7ng cho c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u1ec3 c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n ra l\u1ed7 \u0111en.<\/span><\/span><\/p>

V\u1ec1 ch\u1eb7ng \u0111\u01b0\u1eddng xa h\u01a1n, Paul T.P. Ho – th\u00e0nh vi\u00ean H\u1ed9i \u0111\u1ed3ng EHT, Gi\u00e1m \u0111\u1ed1c \u0110\u00e0i thi\u00ean v\u0103n \u0110\u00f4ng \u00c1 – cho bi\u1ebft: \u201cM\u1ed9t khi ch\u00fang ta \u0111\u00e3 ch\u1eafc ch\u1eafn ch\u1ee5p \u0111\u01b0\u1ee3c \u1ea3nh c\u1ee7a c\u00e1i b\u00f3ng l\u1ed7 \u0111en \u1ea5y, ta c\u00f3 th\u1ec3 so s\u00e1nh nh\u1eefng quan s\u00e1t v\u1edbi c\u01a1 s\u1ed1 nh\u1eefng m\u00f4 h\u00ecnh m\u00e1y t\u00ednh bao g\u1ed3m l\u00fd thuy\u1ebft v\u1ec1 kh\u00f4ng – th\u1eddi gian b\u1ecb b\u1ebb cong, v\u1eadt ch\u1ea5t si\u00eau n\u00f3ng v\u00e0 t\u1eeb tr\u01b0\u1eddng m\u1ea1nh. M\u1ed9t c\u00e1ch \u0111\u1ea7y b\u1ea5t ng\u1edd, nhi\u1ec1u t\u00ednh ch\u1ea5t c\u1ee7a b\u1ee9c \u1ea3nh tr\u00f9ng kh\u1edbp v\u1edbi c\u00e1c hi\u1ec3u bi\u1ebft c\u1ee7a ch\u00fang t\u00f4i tr\u00ean m\u1eb7t l\u00fd thuy\u1ebft. \u0110i\u1ec1u n\u00e0y khi\u1ebfn ch\u00fang t\u00f4i th\u00eam t\u1ef1 tin v\u1ec1 bi\u1ec3u di\u1ec5n c\u00e1c quan s\u00e1t c\u1ee7a ch\u00fang t\u00f4i, bao g\u1ed3m vi\u1ec7c \u01b0\u1edbc \u0111o\u00e1n kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a l\u1ed7 \u0111en\u201d.<\/span><\/span><\/p>

Suy ngh\u0129 v\u1ec1 th\u1ee9 g\u1ecdi l\u00e0 l\u1ed7 \u0111en \u0111\u00e3 k\u00edch th\u00edch s\u1ef1 t\u01b0\u1edfng t\u01b0\u1ee3ng cho nh\u00e2n lo\u1ea1i trong nhi\u1ec1u th\u1eadp k\u1ef7 qua, v\u1ed1n v\u1eabn l\u00e0 m\u1ed9t \u1ea9n s\u1ed1 \u0111\u1ec3 c\u00f3 th\u1ec3 hi\u1ec3u ch\u00ednh x\u00e1c v\u1ec1 ch\u00fang. Tuy nhi\u00ean, cu\u1ed9c c\u00e1ch m\u1ea1ng v\u1ec1 thi\u00ean v\u0103n trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y \u0111\u00e3 v\u00e9n d\u1ea7n b\u1ee9c m\u00e0n, v\u00e0 b\u00ed \u1ea9n v\u1ec1 l\u1ed7 \u0111en \u0111\u00e3 \u201cb\u01b0\u1edbc ra \u00e1nh s\u00e1ng\u201d. France C\u00f3rdova, ch\u1ee7 t\u1ecbch Qu\u1ef9 Khoa h\u1ecdc Qu\u1ed1c gia, nh\u1eadn \u0111\u1ecbnh: \u201cB\u1eb1ng nh\u1eefng quan s\u00e1t \u0111\u1ed9t ph\u00e1 nh\u01b0 th\u1ebf n\u00e0y, ch\u00fang ta \u0111\u00e3 d\u1ea7n ph\u01a1i b\u00e0y nh\u1eefng b\u00ed m\u1eadt \u0111\u1eb1ng sau l\u1ed7 \u0111en. \u0110\u00f3 ch\u00ednh l\u00e0 s\u1ee9 m\u1ec7nh t\u1ed3n t\u1ea1i c\u1ee7a Qu\u1ef9 Khoa h\u1ecdc Qu\u1ed1c gia. Ch\u00fang t\u00f4i ti\u1ebfp s\u1ee9c \u0111\u1ec3 c\u00e1c nh\u00e0 khoa h\u1ecdc, k\u1ef9 s\u01b0 l\u00e0m s\u00e1ng t\u1ecf nh\u1eefng \u1ea9n s\u1ed1 v\u00e0 ti\u1ebft l\u1ed9 nh\u1eefng v\u1ebb \u0111\u1eb9p ph\u1ee9c t\u1ea1p c\u1ee7a v\u0169 tr\u1ee5 n\u00e0y\u201d.<\/span><\/span><\/p>

T\u1eccA \u0110\u00c0M KHOA H\u1eccC: \u201cB\u1ee8C \u1ea2NH \u0110\u1ea6U TI\u00caN CH\u1ee4P L\u1ed6 \u0110EN”<\/span><\/span><\/p>

PGS.TS Phan B\u1ea3o Ng\u1ecdc – Tr\u01b0\u1edfng B\u1ed9 m\u00f4n V\u1eadt L\u00fd, Tr\u01b0\u1eddng \u0110H Qu\u1ed1c T\u1ebf \u0110HQG-HCM, cho bi\u1ebft ng\u00e0y 3\/6, Tr\u01b0\u1eddng \u0110H Qu\u1ed1c T\u1ebf s\u1ebd t\u1ed5 ch\u1ee9c bu\u1ed5i n\u00f3i chuy\u1ec7n v\u1ec1 \u201cB\u1ee9c \u1ea3nh \u0111\u1ea7u ti\u00ean ch\u1ee5p l\u1ed7 \u0111en\u201d, do GS Paul T.P. Ho – T\u1ed5ng Gi\u00e1m \u0111\u1ed1c \u0110\u00e0i quan s\u00e1t \u0110\u00f4ng \u00c1 l\u00e0m di\u1ec5n gi\u1ea3. \u0110\u00e0i quan s\u00e1t n\u00e0y l\u00e0 n\u01a1i \u0111\u00e3 g\u00f3p hai h\u1ec7 k\u00ednh v\u00f4 tuy\u1ebfn SMA v\u00e0 JCMT v\u00e0o d\u1ef1 \u00e1n k\u00ednh EHT – \u0111\u01a1n v\u1ecb c\u00f4ng b\u1ed1 b\u1ee9c \u1ea3nh \u0111\u1ea7u ti\u00ean c\u1ee7a nh\u00e2n lo\u1ea1i v\u1ec1 l\u1ed7 \u0111en.<\/span><\/p>

\u201cC\u00f4ng tr\u00ecnh c\u00f4ng b\u1ed1 b\u1ee9c \u1ea3nh \u0111\u1ea7u ti\u00ean ch\u1ee5p l\u1ed7 \u0111en l\u00e0 m\u1ed9t c\u00f4ng tr\u00ecnh ti\u00eau bi\u1ec3u v\u1ec1 vai tr\u00f2 quan tr\u1ecdng c\u1ee7a c\u00f4ng ngh\u1ec7 v\u00e0 h\u1ee3p t\u00e1c khoa h\u1ecdc trong nghi\u00ean c\u1ee9u. \u0110\u1eb1ng sau m\u1ed9t b\u1ee9c \u1ea3nh l\u00e0 c\u00f4ng vi\u1ec7c c\u1ee7a h\u00e0ng tr\u0103m nh\u00e0 khoa h\u1ecdc t\u1eeb kh\u1eafp n\u01a1i tr\u00ean th\u1ebf gi\u1edbi, c\u00e1c c\u00f4ng ngh\u1ec7 ch\u1ebf t\u1ea1o \u0103ng-ten ti\u00ean ti\u1ebfn nh\u1ea5t v\u00e0 k\u1ef9 thu\u1eadt x\u1eed l\u00fd d\u1eef li\u1ec7u l\u1edbn. H\u00e0nh tr\u00ecnh \u0111\u1ec3 c\u00e1c nh\u00e0 khoa h\u1ecdc c\u00f3 th\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c \u1ea3nh ch\u1ee5p c\u1ee7a l\u1ed7 \u0111en si\u00eau l\u1edbn n\u00e0y l\u00e0 m\u1ed9t c\u00e2u chuy\u1ec7n \u0111\u1ea7y l\u00fd th\u00fa. T\u00f4i hy v\u1ecdng bu\u1ed5i n\u00f3i chuy\u1ec7n c\u1ee7a GS Paul T.P. Ho s\u1ebd gi\u00fap ng\u01b0\u1eddi y\u00eau khoa h\u1ecdc, \u0111\u1eb7c bi\u1ec7t l\u00e0 sinh vi\u00ean, t\u00ecm hi\u1ec3u v\u00e0 h\u1ecdc h\u1ecfi \u0111\u01b0\u1ee3c nhi\u1ec1u \u0111i\u1ec1u m\u1edbi m\u1ebb v\u1ec1 h\u00e0nh tr\u00ecnh \u0111\u1ea7y th\u00fa v\u1ecb n\u00e0y\u201d – PGS.TS Phan B\u1ea3o Ng\u1ecdc cho hay.<\/span><\/span><\/span><\/span><\/p>

GS Paul T.P. Ho l\u1ea5y b\u1eb1ng c\u1eed nh\u00e2n v\u00e0 ti\u1ebfn s\u0129 V\u1eadt l\u00fd t\u1ea1i H\u1ecdc vi\u1ec7n C\u00f4ng ngh\u1ec7 Massachusetts, nghi\u00ean c\u1ee9u sau ti\u1ebfn s\u0129 t\u1ea1i \u0110H Massachusetts, Amherst v\u00e0 \u0110H Berkeley. Tr\u01b0\u1edbc khi tr\u1edf v\u1ec1 l\u00e0m gi\u00e1m \u0111\u1ed1c Vi\u1ec7n Thi\u00ean v\u0103n V\u1eadt l\u00fd \u0110\u00e0i Loan v\u00e0o n\u0103m 2002, \u00f4ng l\u00e0 gi\u00e1o s\u01b0 \u0110H Harvard v\u00e0 l\u00e0 nh\u00e0 khoa h\u1ecdc cao c\u1ea5p c\u1ee7a \u0110\u00e0i quan s\u00e1t Smithsonian.<\/span><\/span><\/span><\/span><\/p>

T\u1eeb n\u0103m 2014, \u00f4ng gi\u1eef ch\u1ee9c T\u1ed5ng Gi\u00e1m \u0111\u1ed1c \u0110\u00e0i quan s\u00e1t \u0110\u00f4ng \u00c1. \u0110\u00e2y l\u00e0 \u0111\u00e0i quan s\u00e1t \u0111\u00e3 g\u00f3p hai h\u1ec7 k\u00ednh v\u00f4 tuy\u1ebfn l\u00e0 SMA v\u00e0 JCMT v\u00e0o d\u1ef1 \u00e1n k\u00ednh EHT ch\u1ee5p \u1ea3nh l\u1ed7 \u0111en \u0111\u1ea7u ti\u00ean nh\u01b0 \u0111\u00e3 c\u00f4ng b\u1ed1 v\u1eeba qua tr\u00ean to\u00e0n th\u1ebf gi\u1edbi. \u0110HQG-HCM l\u00e0 th\u00e0nh vi\u00ean quan s\u00e1t \u0111\u1ea7u ti\u00ean \u1edf \u0110\u00f4ng Nam \u00c1 c\u1ee7a t\u1ed5 ch\u1ee9c khoa h\u1ecdc n\u00e0y t\u1eeb n\u0103m 2017.<\/span><\/span><\/span><\/span><\/p>

\u0110\u1ec3 tham d\u1ef1 ch\u01b0\u01a1ng tr\u00ecnh, vui l\u00f2ng \u0111\u0103ng k\u00fd\u00a0<\/span>T\u1ea0I \u0110\u00c2Y.<\/span><\/a><\/span><\/span><\/p><\/td><\/tr><\/tbody><\/table>

\u00a0<\/p>

HO\u00c0I CHUNG<\/span>\u00a0(B\u1ea3n tin \u0110HQG-HCM<\/em>\u00a0s\u1ed1 194<\/span><\/a>)<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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