. "Ligne de naissance stellaire"@fr . "1081850796"^^ . "\u6046\u661F\u8A95\u751F\u7DDA"@zh . . "The stellar birthline is a predicted line on the Hertzsprung\u2013Russell diagram that relates the effective temperature and luminosity of pre-main-sequence stars at the start of their contraction. Prior to this point, the objects are accreting protostars, and are so deeply embedded in the cloud of dust and gas from which they are forming that they radiate only in far infrared and millimeter wavelengths. Once stellar winds disperse this cloud, the star becomes visible as a pre-main-sequence object. The set of locations on the Hertzsprung\u2013Russell diagram where these newly visible stars reside is called the birthline, and is found above the main sequence. The location of the stellar birthline depends in detail on the accretion rate onto the star and geometry of this accretion, i.e. whether or not it is occurring through an accretion disk. This means that the birthline is not an infinitely thin curve, but has a finite thickness in the Hertzsprung-Russell diagram."@en . . . . . . . . . . "\u6046\u661F\u8A95\u751F\u7DDA\u662F\u5728\u8D6B\u7F85\u5716\u4E0A\u9810\u6E2C\u6210\u70BA\u539F\u6046\u661F\u6642\uFF0C\u6700\u521D\u7684\u8CEA\u91CF\uFF0D\u534A\u5F91\u7DDA\u3002\u5728\u9019\u500B\u968E\u6BB5\u4E4B\u524D\u7684\u539F\u6046\u661F\u4ECD\u88AB\u6DF1\u57CB\u5728\u6C23\u9AD4\u548C\u5875\u571F\u7684\u96F2\u6C23\u5167\uFF0C\u56E0\u6B64\u50C5\u662F\u8F3B\u5C04\u51FA\u7D05\u5916\u7DDA\u7684\u5340\u57DF\u3002\u7576\u6F14\u5316\u4F5C\u7528\u6210\u7A00\u8584\u7684\u5305\u5C64\u6642\uFF0C\u6046\u661F\u6210\u70BA\u53EF\u4EE5\u770B\u898B\u7684\u524D\u4E3B\u5E8F\u5E36\u5929\u9AD4\uFF0C\u624D\u80FD\u5728\u8D6B\u7F85\u5716\u4E0A\u4F54\u6709\u4E00\u5E2D\u4E4B\u5730\u3002\u90A3\u4E9B\u6046\u661F\u521D\u73FE\u4F4D\u7F6E\u7684\u96C6\u5408\u5C31\u7A31\u70BA\u6046\u661F\u8A95\u751F\u7DDA\u3002 \u5B83\u5B8C\u5168\u90FD\u5728\u4E3B\u5E8F\u5E36\u7684\u53F3\u5074\u3002 \u9019\u500B\u540D\u8A5E\u662F\u57281983\u5E74\u7531\u53F2\u8482\u82ACW. \u53F2\u5854\u52D2\u9996\u5148\u63D0\u51FA\u4E26\u4ECB\u7D39\u7684\u3002 \u6046\u661F\u8A95\u751F\u7DDA\u7684\u4F4D\u7F6E\u8207\u6046\u661F\u7D50\u69CB\u3001\u5438\u7A4D\u7387\u3001\u548C\u5E7E\u4F55\u5F62\u72C0\u6709\u95DC\u3002\u9019\u610F\u5473\u8457\uFF0C\u6046\u661F\u8A95\u751F\u7DDA\u7684\u4F4D\u7F6E\u4E0D\u80FD\u660E\u78BA\u7684\u754C\u5B9A\uFF0C\u56E0\u6B64\u5728\u4E0A\u4E0B\u6587\u7684\u95DC\u806F\u4E0A\uFF0C\u6211\u5011\u751A\u81F3\u53EF\u4EE5\u7A31\u4E4B\u70BA\u6046\u661F\u8A95\u751F\u5E36\u3002"@zh . . . . "Stellar birthline"@en . . "Birthline stellare"@it . . . . . . . . "La ligne de naissance stellaire est une ligne th\u00E9oriquement pr\u00E9dite sur le diagramme de Hertzsprung\u2013Russell qui met en relation la temp\u00E9rature effective et la luminosit\u00E9 d'\u00E9toiles de la pr\u00E9-s\u00E9quence principale au d\u00E9but de leur contraction. Les \u00E9toiles de la pr\u00E9-s\u00E9quence principale deviennent optiquement visibles apr\u00E8s la ligne de naissance stellaire. Avant ce moment, les objets sont des proto-\u00E9toiles en cours d'accr\u00E9tion et ils sont si profond\u00E9ment enfonc\u00E9s dans le nuage de poussi\u00E8re interstellaire qu'il n'\u00E9mettent que dans les longueurs d'onde infrarouges et millim\u00E9triques. Une fois le nuage dispers\u00E9 par les vents stellaires, l'\u00E9toile devient visible telle une \u00E9toile de la pr\u00E9-s\u00E9quence principale. L'ensemble des emplacements sur le diagramme de Hertzsprung\u2013Russell o\u00F9 se trouvent ces \u00E9toiles nouvellement visibles est appel\u00E9 la ligne de naissance, et se trouve au-dessus de la s\u00E9quence principale. La position de la ligne de naissance d\u00E9pend du taux d'accr\u00E9tion sur l'\u00E9toile et de la g\u00E9om\u00E9trie de cette accr\u00E9tion, autrement dit, si elle a lieu via un disque d'accr\u00E9tion. Ceci implique que la ligne de naissance n'est pas une courbe infiniment \u00E9troite, mais poss\u00E8de plut\u00F4t une \u00E9paisseur finie dans le diagramme de Hertzsprung-Russell."@fr . . . "La ligne de naissance stellaire est une ligne th\u00E9oriquement pr\u00E9dite sur le diagramme de Hertzsprung\u2013Russell qui met en relation la temp\u00E9rature effective et la luminosit\u00E9 d'\u00E9toiles de la pr\u00E9-s\u00E9quence principale au d\u00E9but de leur contraction. Les \u00E9toiles de la pr\u00E9-s\u00E9quence principale deviennent optiquement visibles apr\u00E8s la ligne de naissance stellaire."@fr . . . . "La Birthline stellare (o linea di nascita stellare) \u00E8 una linea prevista nel Diagramma Hertzsprung-Russell che correla colore e luminosit\u00E0 delle protostelle alla fine della loro fase iniziale di accrescimento."@it . "1775"^^ . "La Birthline stellare (o linea di nascita stellare) \u00E8 una linea prevista nel Diagramma Hertzsprung-Russell che correla colore e luminosit\u00E0 delle protostelle alla fine della loro fase iniziale di accrescimento."@it . . . . . . . . "5586326"^^ . . . . . . "The stellar birthline is a predicted line on the Hertzsprung\u2013Russell diagram that relates the effective temperature and luminosity of pre-main-sequence stars at the start of their contraction. Prior to this point, the objects are accreting protostars, and are so deeply embedded in the cloud of dust and gas from which they are forming that they radiate only in far infrared and millimeter wavelengths. Once stellar winds disperse this cloud, the star becomes visible as a pre-main-sequence object. The set of locations on the Hertzsprung\u2013Russell diagram where these newly visible stars reside is called the birthline, and is found above the main sequence."@en . . . . . "\u6046\u661F\u8A95\u751F\u7DDA\u662F\u5728\u8D6B\u7F85\u5716\u4E0A\u9810\u6E2C\u6210\u70BA\u539F\u6046\u661F\u6642\uFF0C\u6700\u521D\u7684\u8CEA\u91CF\uFF0D\u534A\u5F91\u7DDA\u3002\u5728\u9019\u500B\u968E\u6BB5\u4E4B\u524D\u7684\u539F\u6046\u661F\u4ECD\u88AB\u6DF1\u57CB\u5728\u6C23\u9AD4\u548C\u5875\u571F\u7684\u96F2\u6C23\u5167\uFF0C\u56E0\u6B64\u50C5\u662F\u8F3B\u5C04\u51FA\u7D05\u5916\u7DDA\u7684\u5340\u57DF\u3002\u7576\u6F14\u5316\u4F5C\u7528\u6210\u7A00\u8584\u7684\u5305\u5C64\u6642\uFF0C\u6046\u661F\u6210\u70BA\u53EF\u4EE5\u770B\u898B\u7684\u524D\u4E3B\u5E8F\u5E36\u5929\u9AD4\uFF0C\u624D\u80FD\u5728\u8D6B\u7F85\u5716\u4E0A\u4F54\u6709\u4E00\u5E2D\u4E4B\u5730\u3002\u90A3\u4E9B\u6046\u661F\u521D\u73FE\u4F4D\u7F6E\u7684\u96C6\u5408\u5C31\u7A31\u70BA\u6046\u661F\u8A95\u751F\u7DDA\u3002 \u5B83\u5B8C\u5168\u90FD\u5728\u4E3B\u5E8F\u5E36\u7684\u53F3\u5074\u3002 \u9019\u500B\u540D\u8A5E\u662F\u57281983\u5E74\u7531\u53F2\u8482\u82ACW. \u53F2\u5854\u52D2\u9996\u5148\u63D0\u51FA\u4E26\u4ECB\u7D39\u7684\u3002 \u6046\u661F\u8A95\u751F\u7DDA\u7684\u4F4D\u7F6E\u8207\u6046\u661F\u7D50\u69CB\u3001\u5438\u7A4D\u7387\u3001\u548C\u5E7E\u4F55\u5F62\u72C0\u6709\u95DC\u3002\u9019\u610F\u5473\u8457\uFF0C\u6046\u661F\u8A95\u751F\u7DDA\u7684\u4F4D\u7F6E\u4E0D\u80FD\u660E\u78BA\u7684\u754C\u5B9A\uFF0C\u56E0\u6B64\u5728\u4E0A\u4E0B\u6587\u7684\u95DC\u806F\u4E0A\uFF0C\u6211\u5011\u751A\u81F3\u53EF\u4EE5\u7A31\u4E4B\u70BA\u6046\u661F\u8A95\u751F\u5E36\u3002"@zh . . .