{"id":11647,"date":"2024-09-17T21:18:32","date_gmt":"2024-09-17T21:18:32","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=11647"},"modified":"2024-09-17T21:18:32","modified_gmt":"2024-09-17T21:18:32","slug":"unveiling-the-milky-ways-dark-side-with-the-vlba","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/astronomy\/unveiling-the-milky-ways-dark-side-with-the-vlba\/","title":{"rendered":"Unveiling the Milky Way&#8217;s Dark Side: A New Perspective from the VLBA"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Nghi\u00ean c\u1ee9u m\u1edbi l\u00e0m s\u00e1ng t\u1ecf &#8220;m\u1eb7t t\u1ed1i&#8221; c\u1ee7a Ng\u00e2n H\u00e0<\/h2>\n\n<h2 class=\"wp-block-heading\">L\u1eadp b\u1ea3n \u0111\u1ed3 nh\u1eefng \u0111i\u1ec1u ch\u01b0a bi\u1ebft<\/h2>\n\n<p>Ng\u00e2n H\u00e0, thi\u00ean h\u00e0 c\u1ee7a ch\u00fang ta, c\u00f3 m\u1ed9t m\u1eb7t khu\u1ea5t t\u1eeb l\u00e2u v\u1eabn l\u00e0 \u0111i\u1ec1u b\u00ed \u1ea9n. Cho \u0111\u1ebfn nay, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u v\u1eabn ch\u01b0a th\u1ec3 l\u1eadp b\u1ea3n \u0111\u1ed3 m\u1ed9t n\u1eeda thi\u00ean h\u00e0, b\u1ecb che khu\u1ea5t b\u1edfi t\u00e2m thi\u00ean h\u00e0 ch\u1ee9a \u0111\u1ea7y b\u1ee5i. &#8220;M\u1eb7t t\u1ed1i&#8221; n\u00e0y l\u00e0 m\u1ed9t tr\u1edf ng\u1ea1i l\u1edbn trong vi\u1ec7c hi\u1ec3u c\u1ea5u tr\u00fac v\u00e0 s\u1ef1 ti\u1ebfn h\u00f3a c\u1ee7a Ng\u00e2n H\u00e0.<\/p>\n\n<h2 class=\"wp-block-heading\">VLBA v\u00e0o cu\u1ed9c gi\u1ea3i c\u1ee9u<\/h2>\n\n<p>Trong m\u1ed9t nghi\u00ean c\u1ee9u \u0111\u1ed9t ph\u00e1 m\u1edbi, c\u00e1c nh\u00e0 thi\u00ean v\u0103n h\u1ecdc \u0111\u00e3 s\u1eed d\u1ee5ng m\u1ed9t h\u1ec7 th\u1ed1ng g\u1ed3m m\u01b0\u1eddi \u0103ng-ten gi\u1ed1ng h\u1ec7t nhau c\u00f3 t\u00ean l\u00e0 M\u1ea3ng \u0111\u01b0\u1eddng c\u01a1 s\u1edf r\u1ea5t d\u00e0i (VLBA) \u0111\u1ec3 nh\u00ecn xuy\u00ean qua t\u00e2m thi\u00ean h\u00e0 v\u00e0 v\u00e0o m\u1eb7t t\u1ed1i c\u1ee7a Ng\u00e2n H\u00e0. Ph\u1ea1m vi ph\u1ee7 s\u00f3ng kho\u1ea3ng c\u00e1ch l\u1edbn c\u1ee7a VLBA cho ph\u00e9p n\u00f3 &#8220;nh\u00ecn&#8221; b\u1eb1ng s\u00f3ng v\u00f4 tuy\u1ebfn, l\u1edbn h\u01a1n nhi\u1ec1u so v\u1edbi s\u00f3ng \u00e1nh s\u00e1ng kh\u1ea3 ki\u1ebfn.<\/p>\n\n<h2 class=\"wp-block-heading\">\u0110o kho\u1ea3ng c\u00e1ch b\u1eb1ng th\u1ecb sai<\/h2>\n\n<p>C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 s\u1eed d\u1ee5ng m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p c\u0169 g\u1ecdi l\u00e0 th\u1ecb sai l\u01b0\u1ee3ng gi\u00e1c \u0111\u1ec3 t\u00ednh to\u00e1n kho\u1ea3ng c\u00e1ch \u0111\u1ebfn c\u00e1c v\u00f9ng h\u00ecnh th\u00e0nh sao \u1edf ph\u00eda xa c\u1ee7a thi\u00ean h\u00e0. Th\u1ecb sai li\u00ean quan \u0111\u1ebfn vi\u1ec7c theo d\u00f5i s\u1ef1 d\u1ecbch chuy\u1ec3n v\u1ecb tr\u00ed bi\u1ec3u ki\u1ebfn c\u1ee7a m\u1ed9t v\u1eadt th\u1ec3 tr\u00ean b\u1ea7u tr\u1eddi khi nh\u00ecn t\u1eeb hai v\u1ecb tr\u00ed kh\u00e1c nhau tr\u00ean qu\u1ef9 \u0111\u1ea1o Tr\u00e1i \u0111\u1ea5t, c\u00e1ch nhau v\u00e0i th\u00e1ng. \u0110o g\u00f3c d\u1ecbch chuy\u1ec3n n\u00e0y cho ph\u00e9p c\u00e1c nh\u00e0 thi\u00ean v\u0103n h\u1ecdc t\u00ednh to\u00e1n kho\u1ea3ng c\u00e1ch c\u1ee7a v\u1eadt th\u1ec3 b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng ph\u00e9p l\u01b0\u1ee3ng gi\u00e1c.<\/p>\n\n<h2 class=\"wp-block-heading\">H\u00e9 l\u1ed9 c\u00e1c v\u00f9ng h\u00ecnh th\u00e0nh sao<\/h2>\n\n<p>VLBA cung c\u1ea5p cho c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u kh\u1ea3 n\u0103ng \u0111o chuy\u1ec3n \u0111\u1ed9ng th\u1ecb sai r\u1ea5t nh\u1ecf \u0111\u01b0\u1ee3c nh\u00ecn th\u1ea5y tr\u00ean ph\u1ea1m vi h\u01a1n 66.000 n\u0103m \u00e1nh s\u00e1ng \u0111\u1ebfn v\u00f9ng h\u00ecnh th\u00e0nh sao \u1edf ph\u00eda xa c\u1ee7a thi\u00ean h\u00e0. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p h\u1ecd l\u1eadp b\u1ea3n \u0111\u1ed3 ph\u00e2n b\u1ed1 v\u1eadt ch\u1ea5t ph\u00e1t s\u00e1ng v\u00e0 v\u1eadt ch\u1ea5t t\u1ed1i tr\u00ean kh\u1eafp Ng\u00e2n H\u00e0, cung c\u1ea5p m\u1ed9t g\u00f3c nh\u00ecn m\u1edbi v\u1ec1 s\u1ef1 ra \u0111\u1eddi v\u00e0 ti\u1ebfn h\u00f3a c\u1ee7a thi\u00ean h\u00e0.<\/p>\n\n<h2 class=\"wp-block-heading\">Nh\u1eefng n\u1ed7 l\u1ef1c \u0111ang di\u1ec5n ra<\/h2>\n\n<p>Nghi\u00ean c\u1ee9u m\u1edbi ch\u1ec9 l\u00e0 m\u1ed9t ph\u1ea7n trong n\u1ed7 l\u1ef1c \u0111ang di\u1ec5n ra c\u1ee7a nhi\u1ec1u nh\u00f3m v\u00e0 \u0111\u00e0i quan s\u00e1t nh\u1eb1m l\u1eadp b\u1ea3n \u0111\u1ed3 ch\u00ednh x\u00e1c to\u00e0n b\u1ed9 Ng\u00e2n H\u00e0. V\u1edbi m\u1ed9t t\u1ea7m nh\u00ecn ch\u01b0a t\u1eebng c\u00f3 nh\u01b0 v\u1eady, c\u00e1c nh\u00e0 khoa h\u1ecdc hy v\u1ecdng r\u1eb1ng h\u1ecd s\u1ebd c\u00f3 th\u1ec3 tr\u1ea3 l\u1eddi nh\u1eefng c\u00e2u h\u1ecfi l\u00e2u nay v\u1ec1 s\u1ef1 h\u00ecnh th\u00e0nh, ti\u1ebfn h\u00f3a c\u1ee7a thi\u00ean h\u00e0 v\u00e0 vai tr\u00f2 c\u1ee7a v\u1eadt ch\u1ea5t t\u1ed1i.<\/p>\n\n<h2 class=\"wp-block-heading\">Gi\u1ea3i m\u00e3 nh\u1eefng b\u00ed \u1ea9n c\u1ee7a thi\u00ean h\u00e0<\/h2>\n\n<p>B\u1ea3n \u0111\u1ed3 Ng\u00e2n H\u00e0 l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 hi\u1ec3u v\u1ecb tr\u00ed c\u1ee7a ch\u00fang ta trong v\u0169 tr\u1ee5. B\u1eb1ng c\u00e1ch nghi\u00ean c\u1ee9u c\u1ea5u tr\u00fac v\u00e0 s\u1ef1 ti\u1ebfn h\u00f3a c\u1ee7a thi\u00ean h\u00e0, c\u00e1c nh\u00e0 thi\u00ean v\u0103n h\u1ecdc hy v\u1ecdng s\u1ebd c\u00f3 \u0111\u01b0\u1ee3c hi\u1ec3u bi\u1ebft s\u00e2u s\u1eafc v\u1ec1 c\u00e1ch ch\u00fang ta h\u00ecnh th\u00e0nh v\u00e0 v\u1ecb tr\u00ed c\u1ee7a ch\u00fang ta trong v\u0169 tr\u1ee5 bao la. Nghi\u00ean c\u1ee9u m\u1edbi \u0111\u00e3 \u0111\u01b0a ch\u00fang ta ti\u1ebfn th\u00eam m\u1ed9t b\u01b0\u1edbc n\u1eefa \u0111\u1ebfn g\u1ea7n h\u01a1n v\u1edbi vi\u1ec7c gi\u1ea3i m\u00e3 nh\u1eefng b\u00ed \u1ea9n c\u1ee7a thi\u00ean h\u00e0 qu\u00ea h\u01b0\u01a1ng ch\u00fang ta.<\/p>\n\n<h2 class=\"wp-block-heading\">Nh\u1eefng hi\u1ec3u bi\u1ebft b\u1ed5 sung<\/h2>\n\n<ul class=\"wp-block-list\">\n<li>Ng\u00e2n H\u00e0 l\u00e0 m\u1ed9t thi\u00ean h\u00e0 d\u1ea1ng xo\u1eafn \u1ed1c, v\u1edbi h\u1ec7 M\u1eb7t tr\u1eddi c\u1ee7a ch\u00fang ta n\u1eb1m \u1edf m\u1ed9t trong nh\u1eefng c\u00e1nh tay c\u1ee7a n\u00f3.<\/li>\n<li>VLBA l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng g\u1ed3m m\u01b0\u1eddi \u0103ng-ten gi\u1ed1ng h\u1ec7t nhau c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o kho\u1ea3ng c\u00e1ch \u0111\u1ebfn c\u00e1c v\u1eadt th\u1ec3 trong kh\u00f4ng gian v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c cao.<\/li>\n<li>Th\u1ecb sai l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p \u0111o kho\u1ea3ng c\u00e1ch trong thi\u00ean v\u0103n h\u1ecdc b\u1eb1ng c\u00e1ch theo d\u00f5i s\u1ef1 d\u1ecbch chuy\u1ec3n v\u1ecb tr\u00ed bi\u1ec3u ki\u1ebfn c\u1ee7a m\u1ed9t v\u1eadt th\u1ec3 t\u1eeb hai v\u1ecb tr\u00ed kh\u00e1c nhau.<\/li>\n<li>S\u1ef1 ph\u00e2n b\u1ed1 v\u1eadt ch\u1ea5t ph\u00e1t s\u00e1ng v\u00e0 v\u1eadt ch\u1ea5t t\u1ed1i trong Ng\u00e2n H\u00e0 cung c\u1ea5p manh m\u1ed1i v\u1ec1 s\u1ef1 h\u00ecnh th\u00e0nh v\u00e0 ti\u1ebfn h\u00f3a c\u1ee7a thi\u00ean h\u00e0.<\/li>\n<li>C\u00e1c nh\u00e0 khoa h\u1ecdc hy v\u1ecdng r\u1eb1ng b\u1eb1ng c\u00e1ch l\u1eadp b\u1ea3n \u0111\u1ed3 to\u00e0n b\u1ed9 Ng\u00e2n H\u00e0, h\u1ecd c\u00f3 th\u1ec3 tr\u1ea3 l\u1eddi nh\u1eefng c\u00e2u h\u1ecfi l\u00e2u nay v\u1ec1 s\u1ef1 ra \u0111\u1eddi v\u00e0 ti\u1ebfn h\u00f3a c\u1ee7a thi\u00ean h\u00e0, bao g\u1ed3m c\u1ea3 vi\u1ec7c ch\u00fang ta h\u00ecnh th\u00e0nh nh\u01b0 th\u1ebf n\u00e0o.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Nghi\u00ean c\u1ee9u m\u1edbi l\u00e0m s\u00e1ng t\u1ecf &#8220;m\u1eb7t t\u1ed1i&#8221; c\u1ee7a Ng\u00e2n H\u00e0 L\u1eadp b\u1ea3n \u0111\u1ed3 nh\u1eefng \u0111i\u1ec1u ch\u01b0a bi\u1ebft Ng\u00e2n H\u00e0, thi\u00ean h\u00e0 c\u1ee7a ch\u00fang ta, c\u00f3 m\u1ed9t m\u1eb7t khu\u1ea5t t\u1eeb&hellip;<\/p>\n","protected":false},"author":2,"featured_media":24365,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[437],"tags":[434,97,694,435,15733],"class_list":["post-11647","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astronomy","tag-space-exploration","tag-science","tag-milky-way","tag-astronomy","tag-vlba"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/11647","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=11647"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/11647\/revisions"}],"predecessor-version":[{"id":24366,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/11647\/revisions\/24366"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media\/24365"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=11647"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=11647"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=11647"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}