{"id":4202,"date":"2015-10-23T13:01:35","date_gmt":"2015-10-23T06:01:35","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=4202"},"modified":"2017-09-28T23:07:56","modified_gmt":"2017-09-28T16:07:56","slug":"hinh-anh-nu-hon-vinh-biet-cua-2-ngoi-sao-sieu-lon-sieu-nong-dang-va-vao-nhau","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/hinh-anh-nu-hon-vinh-biet-cua-2-ngoi-sao-sieu-lon-sieu-nong-dang-va-vao-nhau\/","title":{"rendered":"H\u00ecnh \u1ea3nh &#8220;n\u1ee5 h\u00f4n v\u0129nh bi\u1ec7t&#8221; c\u1ee7a 2 ng\u00f4i sao si\u00eau l\u1edbn, si\u00eau n\u00f3ng \u0111ang va v\u00e0o nhau"},"content":{"rendered":"<p><strong>B\u1ee9c \u1ea3nh c\u00e1c b\u1ea1n th\u1ea5y \u1edf \u0111\u1ea7u b\u00e0i vi\u1ebft l\u00e0 c\u1ea3nh t\u01b0\u1ee3ng 2 ng\u00f4i sao c\u00e1ch ch\u00fang ta 160.000 n\u0103m \u00e1nh s\u00e1ng lao v\u00e0o nhau &#8211; &#8220;m\u1ed9t n\u1ee5 h\u00f4n v\u0129nh bi\u1ec7t&#8221; \u0111\u1ea7y th\u1ea3m h\u1ecda d\u1eabn t\u1edbi c\u00e1i ch\u1ebft cho c\u1ea3 2.<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4432\" src=\"http:\/\/ttud.com.vn\/wp-content\/uploads\/2015\/10\/23102015143938-duytran3523849_cv_2_ngoi_sao_cham_nhau.jpg\" alt=\"\" width=\"282\" height=\"187\" \/><\/p>\n<p>B\u1ee9c n\u00e0y \u0111\u01b0\u1ee3c c\u00e1c nh\u00e0 thi\u00ean v\u0103n h\u1ecdc ch\u1ee5p l\u1ea1i b\u1eb1ng h\u1ec7 th\u1ed1ng k\u00ednh vi\u1ec5n v\u1ecdng c\u1ee7a t\u1ed5 ch\u1ee9c nghi\u00ean c\u1ee9u v\u0169 tr\u1ee5 ch\u00e2u \u00c2u t\u1ea1i B\u00e1n C\u1ea7u Nam ( ESO). C\u1ee5 th\u1ec3 h\u01a1n, \u0111\u00e2y l\u00e0 VFTS 352 &#8211; m\u1ed9t h\u1ec7 sao \u0111\u00f4i n\u00f3ng nh\u1ea5t v\u00e0 l\u1edbn nh\u1ea5t t\u1eebng \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n t\u1eeb tr\u01b0\u1edbc \u0111\u1ebfn nay.<\/p>\n<p>VFTS 352 l\u00e0 m\u1ed9t h\u1ec7 sao k\u00e9p n\u1eb1m \u1edf tinh v\u00e2n Tarantula, c\u00e1ch Tr\u00e1i \u0110\u1ea5t kho\u1ea3ng 180.000 n\u0103m \u00e1nh s\u00e1ng. N\u00f3 l\u00e0 m\u1ed9t trong c\u00e1c v\u00f9ng b\u00f9ng n\u1ed5 t\u1ea1o sao m\u00e3nh li\u1ec7t nh\u1ea5t trong c\u1ee5m thi\u00ean h\u00e0 nh\u00f3m \u0110\u1ecba Ph\u01b0\u01a1ng, v\u00e0 l\u00e0 v\u00f9ng l\u1edbn nh\u1ea5t trong nh\u00f3m \u0110\u1ecba Ph\u01b0\u01a1ng. \u0110i\u1ec3m \u0111\u1eb7c bi\u1ec7t trong h\u1ec7 th\u1ed1ng n\u00e0y ch\u00ednh l\u00e0 c\u00e1ch c\u00e1c ng\u00f4i sao ch\u1ea1m v\u00e0o nhau, chia s\u1ebb v\u1edbi nhau 30% v\u1eadt ch\u1ea5t c\u1ee7a ch\u00fang v\u00e0 t\u1ea1o ra m\u1ed9t nhi\u1ec7t l\u01b0\u1ee3ng c\u1ef1c l\u1edbn.<\/p>\n<p>Theo c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u, 2 ng\u00f4i sao \u0111i v\u00e0o qu\u1ef9 \u0111\u1ea1o c\u1ee7a nhau trong th\u1eddi gian ch\u01b0a t\u1edbi 1 ng\u00e0y, ti\u1ebfn g\u1ea7n s\u00e1t nhau v\u00e0 c\u00f3 th\u1ec3 va ch\u1ea1m v\u00e0o nhau &#8211; g\u1ecdi l\u00e0 &#8220;overcontact binary&#8221; (t\u1ea1m d\u1ecbch: ti\u1ebfp x\u00fac c\u1eb7p). L\u00fac n\u00e0y, t\u00e2m c\u1ee7a 2 ng\u00f4i sao c\u00e1ch nhau ch\u1ec9 kho\u1ea3ng 12 tri\u1ec7u km &#8211; nghe c\u00f3 v\u1ebb l\u00e0 r\u1ea5t l\u1edbn nh\u01b0ng trong thi\u00ean v\u0103n h\u1ecdc th\u00ec \u0111\u00e2y l\u00e0 m\u1ed9t kho\u1ea3ng c\u00e1ch r\u1ea5t g\u1ea7n, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi 2 ng\u00f4i sao l\u1edbn.<\/p>\n<p><iframe loading=\"lazy\" title=\"Artist\u2019s impression of the hottest and most massive touching double star\" width=\"625\" height=\"352\" src=\"https:\/\/www.youtube.com\/embed\/mndNcAn2WRk?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p style=\"text-align: center;\"><em>Video render h\u1ec7 sao k\u00e9p VFTS 352\u200b<\/em><\/p>\n<p>T\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a VFTS 352 l\u1edbn g\u1ea5p 52 l\u1ea7n M\u1eb7t Tr\u1eddi c\u1ee7a ch\u00fang ta v\u00e0 \u0111\u1ed3ng th\u1eddi, nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a ch\u00fang c\u0169ng l\u1edbn h\u01a1n r\u1ea5t nhi\u1ec1u: l\u00ean t\u1edbi 40.000 \u0111\u1ed9 C (trong khi nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a M\u1eb7t Tr\u1eddi ch\u1ec9 kho\u1ea3ng 5.500 \u0111\u1ed9 C). \u0110\u1ed3ng t\u00e1c gi\u1ea3 c\u1ee7a nghi\u00ean c\u1ee9u v\u00e0 b\u1ee9c \u1ea3nh ch\u1ee5p n\u00f3i tr\u00ean, nh\u00e0 thi\u00ean v\u0103n h\u1ecdc Leonardo A. Almeida t\u1ea1i \u0110\u1ea1i h\u1ecdc Sao Paulo, Brazil cho bi\u1ebft: &#8220;VFTS 352 l\u00e0 tr\u01b0\u1eddng h\u1ee3p t\u1ed1t nh\u1ea5t t\u1eebng \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y v\u1ec1 1 c\u1eb7p sao n\u00f3ng, kh\u1ed5ng l\u1ed3 \u0111ang h\u00f2a tr\u1ed9n v\u1edbi nhau. \u0110\u00e2y th\u1eadt s\u1ef1 l\u00e0 m\u1ed9t b\u1ee9c \u1ea3nh h\u1ea5p d\u1eabn v\u00e0 quan tr\u1ecdng.&#8221;<\/p>\n<p>Th\u1eadt ra th\u00ec kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c ng\u00f4i sao ki\u1ec3u n\u00e0y l\u00e0 c\u1ef1c k\u1ef3 hi\u1ebfm v\u00e0 r\u1ea5t kh\u00f3 t\u00ecm \u0111\u1ed1i v\u1edbi c\u00e1c nh\u00e0 khoa h\u1ecdc. Nguy\u00ean nh\u00e2n l\u00e0 do kho\u1ea3ng th\u1eddi gian 2 ng\u00f4i sao g\u1ea7n g\u0169i nhau m\u1ed9t c\u00e1ch d\u1eef d\u1ed9i nh\u01b0 v\u1eady kh\u00f4ng k\u00e9o d\u00e0i l\u00e2u. Trong tr\u01b0\u1eddng h\u1ee3p l\u1ea7n n\u00e0y, c\u00e1c nh\u00e0 khoa h\u1ecdc cho r\u1eb1ng v\u1eadn m\u1ec7nh c\u1ee7a VFTS 352 c\u00f3 th\u1ec3 k\u1ebft th\u00fac theo 2 c\u00e1ch.<\/p>\n<p><em>&#8220;N\u1ebfu n\u00f3 c\u1ee9 ti\u1ebfp t\u1ee5c xoay nhanh nh\u01b0 v\u1eady th\u00ec c\u00f3 th\u1ec3 s\u1ebd t\u1ea1o n\u00ean m\u1ed9t trong nh\u1eefng v\u1ee5 n\u1ed5 si\u00eau t\u00e2n tinh v\u00e0 k\u1ebft th\u00fac d\u00f2ng \u0111\u1eddi. Khi \u0111\u00f3, 1 ng\u00f4i sao s\u1ebd chuy\u1ec3n \u0111\u1ed9ng theo qu\u1ef9 \u0111\u1ea1o c\u1ee7a sao c\u00f2n l\u1ea1i, gi\u1eef cho 2 ng\u00f4i sao \u1edf c\u00f9ng nhau, cu\u1ed1i c\u00f9ng l\u00e0 s\u1ee5p \u0111\u1ed5 v\u00e0o trong nhau, t\u1ea1o th\u00e0nh 1 ng\u00f4i sao kh\u1ed5ng l\u1ed3 quay c\u1ef1c nhanh \u0111\u1ec3 r\u1ed3i t\u1ef1 s\u1ee5p \u0111\u1ed5 v\u00e0o t\u00e2m d\u01b0\u1edbi tr\u1ecdng tr\u01b0\u1eddng c\u1ee7a ch\u00ednh n\u00f3. Ho\u1eb7c l\u00fac b\u1ea5y gi\u1edd c\u0169ng xu\u1ea5t hi\u1ec7n m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng th\u00fa v\u1ecb: t\u1ea1o ra m\u1ed9t c\u1eb7p l\u1ed7 \u0111en.&#8221;<\/em><\/p>\n<p><em>&#8220;Tr\u01b0\u1eddng h\u1ee3p c\u00f2n l\u1ea1i, n\u1ebfu sau va ch\u1ea1m v\u00e0 2 ng\u00f4i sao v\u1eabn c\u00f2n gi\u1eef l\u1ea1i \u0111\u01b0\u1ee3c 1 ph\u1ea7n th\u00e2n th\u1ec3 nh\u1ea5t \u0111\u1ecbnh, h\u1ec7 VFTS 352 s\u1ebd tr\u00e1nh \u0111\u01b0\u1ee3c s\u1ef1 g\u1ed9p l\u1ea1i v\u1edbi nhau. C\u00f3 th\u1ec3 \u0111i\u1ec1u n\u00e0y s\u1ebd d\u1eabn t\u1edbi m\u1ed9t con \u0111\u01b0\u1eddng ti\u1ebfn h\u00f3a sao m\u1edbi, ho\u00e0n to\u00e0n kh\u00e1c v\u1edbi s\u1ef1 ti\u1ebfn h\u00f3a sao m\u00e0 ng\u01b0\u1eddi ta ngh\u0129 t\u1eeb tr\u01b0\u1edbc \u0111\u1ebfn nay. Tuy nhi\u00ean trong tr\u01b0\u1eddng h\u1ee3p c\u1ee7a VFTS 352 th\u00ec ph\u01b0\u01a1ng \u00e1n \u0111\u1ea7u s\u1ebd di\u1ec5n ra.&#8221;<\/em><\/p>\n<p style=\"text-align: right;\"><strong>Tham kh\u1ea3o ESO, Lopscience\u200b<\/strong><\/p>\n<p style=\"text-align: right;\"><em>Ngu\u1ed3n tinhte.vn<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>B\u1ee9c \u1ea3nh c\u00e1c b\u1ea1n th\u1ea5y \u1edf \u0111\u1ea7u b\u00e0i vi\u1ebft l\u00e0 c\u1ea3nh t\u01b0\u1ee3ng 2 ng\u00f4i sao c\u00e1ch ch\u00fang ta 160.000 n\u0103m \u00e1nh s\u00e1ng lao v\u00e0o nhau &#8211; &#8220;m\u1ed9t n\u1ee5 h\u00f4n v\u0129nh bi\u1ec7t&#8221; \u0111\u1ea7y th\u1ea3m h\u1ecda d\u1eabn t\u1edbi c\u00e1i ch\u1ebft cho c\u1ea3 2. B\u1ee9c n\u00e0y \u0111\u01b0\u1ee3c c\u00e1c nh\u00e0 thi\u00ean v\u0103n h\u1ecdc ch\u1ee5p l\u1ea1i b\u1eb1ng h\u1ec7 th\u1ed1ng k\u00ednh [&hellip;]<\/p>\n","protected":false},"author":17,"featured_media":4432,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-4202","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\/4202","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\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=4202"}],"version-history":[{"count":2,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4202\/revisions"}],"predecessor-version":[{"id":4433,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4202\/revisions\/4433"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/4432"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=4202"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=4202"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=4202"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}