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"\u4E9C\u6052\u661F\u5929\u4F53"@ja . . . . . "Un objeto subestelar (tambi\u00E9n denominado en ocasiones subestrella), es un cuerpo astron\u00F3mico cuya masa es menor que la masa m\u00E1s peque\u00F1a con la puede mantenerse activo un proceso de fusi\u00F3n nuclear (aproximadamente 0.08 masas solares). Esta definici\u00F3n incluye a los cuerpos denominados enanas marrones y a antiguas estrellas similares a . Tambi\u00E9n puede incluir objetos con masa planetaria, independientemente de su mecanismo de formaci\u00F3n y si est\u00E1n o no asociados con una estrella primaria.\u200B\u200B\u200B\u200B Suponiendo que un objeto subestelar tenga una composici\u00F3n similar a la del Sol y al menos la masa de J\u00FApiter (aproximadamente 10\u22123 masas solares), su radio ser\u00E1 comparable al de J\u00FApiter (aproximadamente 0.1 veces el radio solar) independientemente de su masa (las enanas marrones tienen algo menos de 75 masas de J\u00FApiter). Esto se debe a que el centro de dichos objetos subestelares, cuya masa se sit\u00FAa justo por debajo del l\u00EDmite de combusti\u00F3n del hidr\u00F3geno, est\u00E1 formado en su mayor\u00EDa por materia degenerada, con una densidad de \u2248103 g/cm\u00B3 (unas 140 veces m\u00E1s densa que el acero), pero este grado de degeneraci\u00F3n se reduce con la disminuci\u00F3n de la masa hasta que, como en el caso de J\u00FApiter, un objeto subestelar tiene una densidad central inferior a 10 g/cm\u00B3 (1,4 veces la del acero). La disminuci\u00F3n de la densidad equilibra la disminuci\u00F3n de la masa, manteniendo el radio aproximadamente constante.\u200B Los objetos substelares, como las enanas marrones, pueden mantenerse estables por un tiempo indefinido, mientras no re\u00FAnan masa suficiente como para fusionar hidr\u00F3geno y helio. Un objeto subestelar con una masa justo por debajo del l\u00EDmite de fusi\u00F3n del hidr\u00F3geno puede encender la fusi\u00F3n de hidr\u00F3geno temporalmente en su centro. Aunque este proceso le proporcionar\u00E1 algo de energ\u00EDa, no ser\u00E1 suficiente para superar el l\u00EDmite de Kelvin-Helmholtz en el objeto. Del mismo modo, aunque un objeto con una masa superior a aproximadamente 0.013 masas solares podr\u00EDa fusionar deuterio por un tiempo, esta fuente de energ\u00EDa se agotar\u00E1 en aproximadamente 106 a 108 a\u00F1os. Adem\u00E1s de estas fuentes, la radiaci\u00F3n de un objeto subestelar aislado proviene solo de la propagaci\u00F3n de su energ\u00EDa gravitatoria, lo que hace que se enfr\u00EDe y se encoja gradualmente. Un objeto subestelar en \u00F3rbita alrededor de una estrella se encoger\u00E1 m\u00E1s lentamente, ya que la estrella lo mantendr\u00E1 caliente, evolucionando hacia un estado de equilibrio, en el que emite al espacio la misma cantidad de energ\u00EDa que recibe de la estrella.\u200B Los objetos substelares son lo suficientemente fr\u00EDos como para tener vapor de agua en su atm\u00F3sfera. Mediante espectroscopia infrarroja es posible detectar el distintivo color del agua en objetos subtelares de tama\u00F1o gigante gaseoso, incluso si no est\u00E1n en \u00F3rbita alrededor de una estrella.\u200B"@es . . . "Objeto subestelar"@pt . "13313000"^^ . "Objek Subbintang (Inggris:Substellar Object) adalah objek astronomi yang memiliki massa lebih kecil dari massa terkecil di mana fusi hidrogen dapat dipertahankan (sekitar 0,08 massa matahari). Definisi ini mencakup katai coklat dan bekas bintang yang mirip dengan , dan juga dapat mencakup objek bermassa planet, terlepas dari mekanisme pembentukannya dan apakah mereka terkait dengan bintang primer atau tidak."@in . "Un objet substellaire, ou sous-stellaire, est un corps c\u00E9leste dont la masse est inf\u00E9rieure \u00E0 la masse limite permettant la fusion de l'hydrog\u00E8ne par cha\u00EEne proton-proton au c\u0153ur de l'astre, soit environ 0,08 M (masses solaires), ou encore ~ 85 MJ (masses joviennes). Par cette d\u00E9finition, les objets substellaires regroupent les objets de masse plan\u00E9taire (de masse inf\u00E9rieure \u00E0 13 MJ), les naines brunes (de masse comprise entre 13 et 85 MJ), ainsi que les r\u00E9sidus d'\u00E9toiles, tels que EF Eridani B, de masse inf\u00E9rieure \u00E0 85 MJ."@fr . . . . "Substellar object"@en . "\u4E9A\u6052\u661F\u5929\u4F53\uFF0C\u4E5F\u88AB\u79F0\u4E3A\u4E9A\u6052\u661F\uFF0C\u662F\u4E00\u7C7B\u8D28\u91CF\u5C0F\u4E8E\u6052\u661F\u7684\u8D28\u91CF\u4E0B\u9650\u7684\u5929\u4F53\u3002\u6046\u661F\u8CEA\u91CF\u4E0B\u9650\u7D040.08M\u2609\uFF08\u7D0480\u500D\u6728\u661F\u8CEA\u91CF\uFF09\uFF0C\u5929\u4F53\u7684\u8D28\u91CF\u53EA\u6709\u8FBE\u5230\u8BE5\u8D28\u91CF\u4E0B\u9650\uFF0C\u624D\u80FD\u591F\u7EF4\u6301\u5929\u4F53\u5185\u7684\u6C22\u805A\u53D8\u3002\u8BE5\u7C7B\u5929\u4F53\u5305\u62EC\uFF1A\u68D5\u77EE\u661F\u548C\u884C\u661F\u8CEA\u91CF\u9AD4\u2014\u2014\u5C3D\u7BA1\u8FD9\u4E24\u7C7B\u5929\u4F53\u7684\u5F62\u6210\u673A\u5236\u6709\u6240\u4E0D\u540C\uFF0C\u5176\u56DB\u5468\u662F\u5426\u5B58\u5728\u4E3B\u661F\u7684\u60C5\u51B5\u4E5F\u4E0D\u540C\u3002 \u5047\u8BBE\u4E00\u9897\u4E9A\u6052\u661F\u5929\u4F53\u7684\u7269\u8D28\u6784\u6210\u7C7B\u4F3C\u4E8E\u592A\u9633\uFF0C\u800C\u5176\u6700\u5C0F\u8D28\u91CF\u63A5\u8FD1\u4E8E\u6728\u661F\u8D28\u91CF\uFF08\u7EA6\u4E3A\u592A\u9633\u8D28\u91CF\u7684\u5343\u5206\u4E4B\u4E00\uFF09\uFF0C\u5219\u5176\u534A\u5F84\u5219\u4E5F\u5C06\u63A5\u8FD1\u4E8E\u6728\u661F\u534A\u5F84\uFF08\u7EA6\u4E3A\u592A\u9633\u534A\u5F84\u7684\u5341\u5206\u4E4B\u4E00\uFF09\u3002\u5F53\u4E00\u4E2A\u4E9A\u6052\u661F\u5929\u4F53\u6070\u597D\u5904\u4E8E\u89E6\u53D1\u6C22\u805A\u53D8\u7684\u4E34\u754C\u6761\u4EF6\u4E0B\u65F6\uFF0C\u5176\u5185\u6838\u7684\u7B80\u5E76\u538B\u7F29\u5C06\u5341\u5206\u5267\u70C8\uFF0C\u5BC6\u5EA6\u5C06\u8FBE\u5230\u7EA61\u5343\u514B/\u7ACB\u65B9\u5398\u7C73\uFF1B\u4F46\u662F\u968F\u7740\u4E9A\u6052\u661F\u5929\u4F53\u8D28\u91CF\u7684\u51CF\u5C0F\uFF0C\u5176\u5185\u6838\u5BC6\u5EA6\u4E5F\u5C06\u968F\u4E4B\u51CF\u5C0F\uFF0C\u5F53\u8D28\u91CF\u4EC5\u76F8\u5F53\u4E8E\u6728\u661F\u8D28\u91CF\u65F6\uFF0C\u5176\u5185\u6838\u5BC6\u5EA6\u5C06\u5C0F\u4E8E10\u514B/\u7ACB\u65B9\u5398\u7C73\u3002\u7531\u4E8E\u5929\u4F53\u5BC6\u5EA6\u7684\u51CF\u5C0F\u62B5\u6D88\u4E86\u5929\u4F53\u8D28\u91CF\u7684\u51CF\u5C0F\uFF0C\u6240\u4EE5\u4E9A\u6052\u661F\u5929\u4F53\u7684\u534A\u5F84\u80FD\u591F\u5927\u81F4\u4FDD\u6301\u6052\u5B9A\u3002"@zh . . . . . "7950"^^ . . . "\u062C\u0631\u0645 \u062F\u0648\u0646 \u0646\u062C\u0645\u064A"@ar . . . . "Objet substellaire"@fr . . . . . . . "Un objeto subestelar (tambi\u00E9n denominado en ocasiones subestrella), es un cuerpo astron\u00F3mico cuya masa es menor que la masa m\u00E1s peque\u00F1a con la puede mantenerse activo un proceso de fusi\u00F3n nuclear (aproximadamente 0.08 masas solares). Esta definici\u00F3n incluye a los cuerpos denominados enanas marrones y a antiguas estrellas similares a . Tambi\u00E9n puede incluir objetos con masa planetaria, independientemente de su mecanismo de formaci\u00F3n y si est\u00E1n o no asociados con una estrella primaria.\u200B\u200B\u200B\u200B"@es . "Un oggetto substellare \u00E8 un oggetto astronomico la cui massa \u00E8 inferiore a quella delle stelle pi\u00F9 piccole. Un oggetto substellare ha quindi una massa inferiore a quella necessaria per sostenere la fusione dell'idrogeno, che \u00E8 pari a circa 0,08 masse solari. Questa definizione comprende le nane brune, le ex stelle simili a EF Eridani B, ed include anche oggetti di massa planetaria, indipendentemente dal loro meccanismo di formazione e dal loro essere associati o meno ad una stella."@it . "Objeto subestelar"@es . . . . . . . "1097351057"^^ . . "Um objeto subestelar, \u00E9 um objeto astron\u00F4mico cuja massa \u00E9 menor que a menor massa, aproximadamente 0.08 massas solares, necess\u00E1ria para que uma estrela possa manter a fus\u00E3o do hirog\u00EAnio. Essa defini\u00E7\u00E3o inclui as an\u00E3s marrons, objetos que j\u00E1 foram estrelas, como a EF Eridani B, e tamb\u00E9m pode incluir objetos de massa planet\u00E1ria, independente de seus mecanismos de forma\u00E7\u00E3o ou se eles se encontram ou n\u00E3o associados a uma estrela prim\u00E1ria. Pressupondo que um objeto subestelar possui uma composi\u00E7\u00E3o similar \u00E0 do Sol e pelo menos a massa de J\u00FApiter (aproximadamente 10\u22123 massas solares), seu raio seria compar\u00E1vel ao de J\u00FApiter (aproximadamente 0.1 raios solares). Isso acontece porque o centro de tal objeto substelar pouco abaixo do limite necess\u00E1rio para iniciar a combust\u00E3o do hidrog\u00EAnio se encontraria bastante degenerado, com uma densidade de \u2248103 g/cm3, mas essa degenera\u00E7\u00E3o abranda na medida em que a massa diminui at\u00E9 o ponto em que, com uma massa semelhante \u00E0 de J\u00FApiter, um objeto substelar teria uma densidade no centro menor que 10 g/cm3. A diminui\u00E7\u00E3o da densidade equilibra a diminuiss\u00E3o da massa, mantendo o valor do raio constante. Um objeto subestelar com uma massa pouco abaixo do ponto de fus\u00E3o do hidrog\u00EAnio poderia dar in\u00EDcio \u00E0 fus\u00E3o do hidrog\u00EAnio tempor\u00E1riamente em seu n\u00FAcleo, apesar dessa fus\u00E3o fornecer alguma energia, ela n\u00E3o seria o bastante para conter a contra\u00E7\u00E3o gravitacional em andamento; da mesma forma, apesar de um objeto cuja massa corresponde a aproximadamente 0.013 massas solares ser capaz de manter a por algum tempo, essa fonte de energia se esgotaria em num espa\u00E7o de tempo de aproximadamente 106 a 108 anos. Excluindo-se essas fontes, a radia\u00E7\u00E3o de um objeto subestelar isolado viria apenas da libera\u00E7\u00E3o de sua energia gravitacional potencial, provocando o resfriamento e a contra\u00E7\u00E3o do objeto. Um objeto subestelar orbitando uma estrela se contrairia mais lentamente, por ser aquecido pela estrela, evoluindo em dire\u00E7\u00E3o ao estado de equil\u00EDbrio, no qual o corpo emite a mesma quantidade de energia que recebe da estrela."@pt . "Oggetto substellare"@it . . "\u0421\u0443\u0431\u0437\u0432\u0451\u0437\u0434\u043D\u044B\u0439 \u043E\u0431\u044A\u0435\u043A\u0442 (\u0430\u043D\u0433\u043B. Substellar object), \u0441\u0443\u0431\u0437\u0432\u0435\u0437\u0434\u0430 \u2014 \u0430\u0441\u0442\u0440\u043E\u043D\u043E\u043C\u0438\u0447\u0435\u0441\u043A\u0438\u0439 \u043E\u0431\u044A\u0435\u043A\u0442, \u043C\u0430\u0441\u0441\u0430 \u043A\u043E\u0442\u043E\u0440\u043E\u0433\u043E \u043C\u0435\u043D\u044C\u0448\u0435 \u043C\u0438\u043D\u0438\u043C\u0430\u043B\u044C\u043D\u043E\u0439 \u043D\u0435\u043E\u0431\u0445\u043E\u0434\u0438\u043C\u043E\u0439 \u0434\u043B\u044F \u043F\u043E\u0434\u0434\u0435\u0440\u0436\u0430\u043D\u0438\u044F \u044F\u0434\u0435\u0440\u043D\u044B\u0445 \u0440\u0435\u0430\u043A\u0446\u0438\u0439 \u0433\u043E\u0440\u0435\u043D\u0438\u044F \u0432\u043E\u0434\u043E\u0440\u043E\u0434\u0430 (\u043F\u0440\u0438\u043C\u0435\u0440\u043D\u043E 0,08 \u043C\u0430\u0441\u0441\u044B \u0421\u043E\u043B\u043D\u0446\u0430). \u042D\u0442\u043E \u043E\u043F\u0440\u0435\u0434\u0435\u043B\u0435\u043D\u0438\u0435 \u0432\u043A\u043B\u044E\u0447\u0430\u0435\u0442 \u043A\u043E\u0440\u0438\u0447\u043D\u0435\u0432\u044B\u0435 \u043A\u0430\u0440\u043B\u0438\u043A\u0438 \u0438 \u0437\u0432\u0451\u0437\u0434\u044B \u0442\u0438\u043F\u0430 EF \u042D\u0440\u0438\u0434\u0430\u043D\u0430 B, \u0430 \u0442\u0430\u043A\u0436\u0435 \u043C\u043E\u0436\u0435\u0442 \u0432\u043A\u043B\u044E\u0447\u0430\u0442\u044C \u043E\u0431\u044A\u0435\u043A\u0442\u044B \u043F\u043B\u0430\u043D\u0435\u0442\u043D\u043E\u0439 \u043C\u0430\u0441\u0441\u044B \u0432\u043D\u0435 \u0437\u0430\u0432\u0438\u0441\u0438\u043C\u043E\u0441\u0442\u0438 \u043E\u0442 \u043C\u0435\u0445\u0430\u043D\u0438\u0437\u043C\u0430 \u0438\u0445 \u043E\u0431\u0440\u0430\u0437\u043E\u0432\u0430\u043D\u0438\u044F \u0438 \u0441\u0432\u044F\u0437\u0438 \u0441 \u0433\u043B\u0430\u0432\u043D\u043E\u0439 \u0437\u0432\u0435\u0437\u0434\u043E\u0439."@ru . . . . "Um objeto subestelar, \u00E9 um objeto astron\u00F4mico cuja massa \u00E9 menor que a menor massa, aproximadamente 0.08 massas solares, necess\u00E1ria para que uma estrela possa manter a fus\u00E3o do hirog\u00EAnio. Essa defini\u00E7\u00E3o inclui as an\u00E3s marrons, objetos que j\u00E1 foram estrelas, como a EF Eridani B, e tamb\u00E9m pode incluir objetos de massa planet\u00E1ria, independente de seus mecanismos de forma\u00E7\u00E3o ou se eles se encontram ou n\u00E3o associados a uma estrela prim\u00E1ria."@pt . . "Un objet substellaire, ou sous-stellaire, est un corps c\u00E9leste dont la masse est inf\u00E9rieure \u00E0 la masse limite permettant la fusion de l'hydrog\u00E8ne par cha\u00EEne proton-proton au c\u0153ur de l'astre, soit environ 0,08 M (masses solaires), ou encore ~ 85 MJ (masses joviennes). Par cette d\u00E9finition, les objets substellaires regroupent les objets de masse plan\u00E9taire (de masse inf\u00E9rieure \u00E0 13 MJ), les naines brunes (de masse comprise entre 13 et 85 MJ), ainsi que les r\u00E9sidus d'\u00E9toiles, tels que EF Eridani B, de masse inf\u00E9rieure \u00E0 85 MJ. Au-del\u00E0 de 13 MJ, limite sup\u00E9rieure traditionnellement retenue pour distinguer les plan\u00E8tes g\u00E9antes gazeuses des naines brunes, de tels objets sont assez massifs pour permettre la fusion du deut\u00E9rium (seconde \u00E9tape de la cha\u00EEne proton-proton), pendant une dur\u00E9e comprise entre environ 1 et 100 millions d'ann\u00E9es selon leur masse. Hormis \u00E9ventuellement une br\u00E8ve \u00E9tape de fusion de leur deut\u00E9rium, les objets substellaires n'\u00E9mettent que l'\u00E9nergie g\u00E9n\u00E9r\u00E9e par le m\u00E9canisme de Kelvin-Helmholtz lors de leur contraction gravitationnelle, comme c'est par exemple le cas de Jupiter et Saturne dans le Syst\u00E8me solaire."@fr . . . . "Objek Subbintang (Inggris:Substellar Object) adalah objek astronomi yang memiliki massa lebih kecil dari massa terkecil di mana fusi hidrogen dapat dipertahankan (sekitar 0,08 massa matahari). Definisi ini mencakup katai coklat dan bekas bintang yang mirip dengan , dan juga dapat mencakup objek bermassa planet, terlepas dari mekanisme pembentukannya dan apakah mereka terkait dengan bintang primer atau tidak. Dengan asumsi bahwa objek subbintang memiliki komposisi yang mirip dengan Matahari dan setidaknya bermassa Jupiter (kira-kira 10\u22123 massa Matahari), jari-jarinya kira-kira sebanding dengan Jupiter (kira-kira 0,1 jari-jari matahari) terlepas dari massa objek subbintang (katai coklat memiliki massa kurang dari 75 massa Jupiter). Hal ini karena inti benda subbintang tersebut berada pada rentang massa teratas (tepat di bawah batas pembakaran hidrogen) yang cukup berdegenerasi, dengan massa jenis \u2248103 g/cm3, tetapi degenerasi ini berkurang dengan berkurangnya massa hingga hanya bermassa Jupiter. benda di bawah permukaan memiliki massa jenis kurang dari 10 g/cm3. Penurunan massa jenis ini menyeimbangkan penurunan massa, menjaga jari-jari tetap konstan. Objek subbintang seperti katai coklat tidak memiliki massa yang cukup untuk meleburkan hidrogen dan helium, oleh karena itu Katai coklat tidak mengalami evolusi bintang biasa yang membatasi umur bintang. Objek subbintang dengan massa tepat di bawah batas fusi hidrogen dapat memicu fusi hidrogen sementara di pusatnya. Meskipun ini akan memberikan energi, itu tidak akan cukup untuk mengatasi kontraksi gravitasi objek itu sendiri yang sedang berlangsung. Demikian juga, meskipun sebuah objek dengan massa di atas sekitar 0.013 massa matahari akan dapat melakukan fusi deuterium untuk sementara waktu, sumber energi ini akan habis dalam sekitar 106 \u2013 108 tahun. Terlepas dari sumber energi ini, radiasi objek subbintang yang terisolasi hanya berasal dari pelepasan energi potensial gravitasinya, yang menyebabkannya mendingin dan menyusut secara bertahap. Objek subbintang di orbit suatu bintang akan menyusut lebih lambat karena suhunya yang stabil dan hangat dari bintang lain, berkembang menuju keadaan keseimbangan di mana ia memancarkan energi sebanyak yang diterimanya dari bintang. Benda-benda dengan massa lebih rendah cukup dingin untuk memiliki uap air di atmosfernya. Spektroskopi inframerah dapat mendeteksi perbedaan warna air pada objek subbintanh berukuran raksasa gas, meskipun objek tersebut tidak mengorbit di sekitar bintang."@in . . . . . . "\u062C\u0631\u0645 \u062F\u0648\u0646 \u0646\u062C\u0645\u064A (\u0628\u0627\u0644\u0625\u0646\u062C\u0644\u064A\u0632\u064A\u0629: Substellar object)\u200F \u064A\u0633\u0645\u0649 \u0623\u062D\u064A\u0627\u0646\u0627 \u0634\u0628\u0629 \u0646\u062C\u0645\u064A (substar) \u0647\u0648 \u062C\u0631\u0645 \u0641\u0644\u0643\u064A \u0643\u062A\u0644\u062A\u0647 \u0623\u0635\u063A\u0631 \u0645\u0646 \u0623\u0635\u063A\u0631 \u0643\u062A\u0644\u0629 \u064A\u0645\u0643\u0646 \u0641\u064A\u0647\u0627 \u062D\u062F\u0648\u062B \u0627\u0646\u062F\u0645\u0627\u062C \u0646\u0648\u0648\u064A (\u062D\u0648\u0627\u0644\u064A 0.08 \u0643\u062A\u0644\u0629 \u0634\u0645\u0633\u064A\u0629). \u0648\u064A\u0634\u0645\u0644 \u0647\u0630\u0627 \u0627\u0644\u062A\u0639\u0631\u064A\u0641 \u0627\u0644\u0623\u0642\u0632\u0627\u0645 \u0627\u0644\u0628\u0646\u064A\u0629 \u0648\u0627\u0644\u0623\u0642\u0632\u0627\u0645 \u0627\u0644\u0633\u0648\u062F\u0627\u0621 \u0648\u0627\u0644\u0628\u0642\u0627\u064A\u0627 \u0627\u0644\u0646\u062C\u0645\u064A\u0629 \u0627\u0644\u0645\u0634\u0627\u0628\u0647\u0629 \u0644\u0644\u062C\u0631\u0645 EF Eridani B \u062D\u0648\u0644 \u0646\u062C\u0645 EF \u0627\u0644\u0646\u0647\u0631 \u060C \u0648\u064A\u0645\u0643\u0646 \u0623\u0646 \u062A\u0634\u0645\u0644 \u0623\u064A\u0636\u0627 \u0623\u062C\u0631\u0627\u0645 \u0627\u0643\u062A\u0644 \u0627\u0644\u0643\u0648\u0643\u0628\u064A\u0629 \u0628\u063A\u0636 \u0627\u0644\u0646\u0638\u0631 \u0639\u0646 \u0622\u0644\u064A\u0629 \u062A\u0634\u0643\u064A\u0644\u0647\u0627 \u0648\u0645\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646\u062A \u0645\u0631\u062A\u0628\u0637\u0629 \u0628\u0646\u062C\u0645 \u0631\u0626\u064A\u0633\u064A \u0623\u0645 \u0644\u0627."@ar . . . . . . . . . . . . . . "Objek Subbintang"@in . "\u0421\u0443\u0431\u0437\u0432\u0451\u0437\u0434\u043D\u044B\u0439 \u043E\u0431\u044A\u0435\u043A\u0442"@ru . . . . . . "\u4E9A\u6052\u661F"@zh . . . "\u4E9C\u6052\u661F\u5929\u4F53\uFF08substellar object, Substar\uFF09\u306F\u3001\u6052\u661F\u304C\u6C34\u7D20\u6838\u878D\u5408\u3092\u7DAD\u6301\u3067\u304D\u308B\u4E0B\u9650\u8CEA\u91CF\u3067\u3042\u308B\u304A\u304A\u3088\u305D0.08\u592A\u967D\u8CEA\u91CF\u3092\u4E0B\u56DE\u308B\u8CEA\u91CF\u3092\u6301\u3064\u5929\u4F53\u3067\u3042\u308B\u3002\u3053\u306E\u5B9A\u7FA9\u3067\u306F\u3001\u5F62\u6210\u904E\u7A0B\u3084\u4E3B\u661F\u3092\u6301\u3064\u304B\u5426\u304B\u7B49\u306B\u306F\u95A2\u308F\u308A\u306A\u304F\u3001\u30A8\u30EA\u30C0\u30CC\u30B9\u5EA7EF\u661FB\u306E\u3088\u3046\u306A\u4EE5\u524D\u306F\u6052\u661F\u306B\u5206\u985E\u3055\u308C\u3066\u3044\u305F\u8910\u8272\u77EE\u661F\u3084\u60D1\u661F\u8CEA\u91CF\u5929\u4F53\u304C\u5206\u985E\u3055\u308C\u308B\u3002 \u4E9C\u6052\u661F\u5929\u4F53\u304C\u592A\u967D\u3068\u540C\u3058\u3088\u3046\u306A\u7D44\u6210\u3092\u6301\u3061\u3001\u5C11\u306A\u304F\u3068\u3082\u6728\u661F\u8CEA\u91CF\uFF08\u7D0410-3\u592A\u967D\u8CEA\u91CF\uFF09\u3088\u308A\u306F\u5927\u304D\u3044\u3068\u4EEE\u5B9A\u3059\u308B\u3068\u3001\u305D\u306E\u534A\u5F84\u306F\u6728\u661F\u534A\u5F84\u7A0B\u5EA6\uFF08\u7D040.1\u592A\u967D\u534A\u5F84\uFF09\u3068\u306A\u308B\u3002\u6C34\u7D20\u71C3\u713C\u9650\u754C\u306B\u308F\u305A\u304B\u306B\u8DB3\u308A\u306A\u3044\u8CEA\u91CF\u306E\u4E9C\u6052\u661F\u5929\u4F53\u306E\u4E2D\u5FC3\u90E8\u306F\u3001\u5BC6\u5EA6\u304C\u2248103 g/cm3\u306E\u30D5\u30A7\u30EB\u30DF\u7E2E\u9000\u7269\u8CEA\u3068\u306A\u3063\u3066\u3044\u308B\u304C\u3001\u3053\u306E\u7E2E\u9000\u306E\u5EA6\u5408\u3044\u306F\u3001\u6728\u661F\u7A0B\u5EA6\u306E\u8CEA\u91CF\u3067\u4E2D\u5FC3\u306E\u5BC6\u5EA6\u304C10g/cm3\u306B\u306A\u308B\u307E\u3067\u8CEA\u91CF\u306E\u4F4E\u4E0B\u3068\u3068\u3082\u306B\u6E1B\u5C11\u3059\u308B\u3002\u5BC6\u5EA6\u306E\u6E1B\u5C11\u306F\u8CEA\u91CF\u306E\u6E1B\u5C11\u3068\u91E3\u308A\u5408\u3063\u3066\u304A\u308A\u3001\u534A\u5F84\u306F\u304A\u304A\u3088\u305D\u4E00\u5B9A\u306B\u4FDD\u305F\u308C\u308B\u3002 \u30AA\u30C3\u30AF\u30B9\u30D5\u30A9\u30FC\u30C9\u5929\u6587\u5B66\u8F9E\u5178\u306B\u3088\u308C\u3070\u3001\u300C\u4E9C\u6052\u661F\u5929\u4F53\u300D\u3068\u3044\u3046\u7528\u8A9E\u306F\u307B\u3068\u3093\u3069\u4F7F\u7528\u3055\u308C\u3066\u3044\u306A\u3044\u3001\u3068\u3057\u3066\u3044\u308B\u3002"@ja . "\u4E9C\u6052\u661F\u5929\u4F53\uFF08substellar object, Substar\uFF09\u306F\u3001\u6052\u661F\u304C\u6C34\u7D20\u6838\u878D\u5408\u3092\u7DAD\u6301\u3067\u304D\u308B\u4E0B\u9650\u8CEA\u91CF\u3067\u3042\u308B\u304A\u304A\u3088\u305D0.08\u592A\u967D\u8CEA\u91CF\u3092\u4E0B\u56DE\u308B\u8CEA\u91CF\u3092\u6301\u3064\u5929\u4F53\u3067\u3042\u308B\u3002\u3053\u306E\u5B9A\u7FA9\u3067\u306F\u3001\u5F62\u6210\u904E\u7A0B\u3084\u4E3B\u661F\u3092\u6301\u3064\u304B\u5426\u304B\u7B49\u306B\u306F\u95A2\u308F\u308A\u306A\u304F\u3001\u30A8\u30EA\u30C0\u30CC\u30B9\u5EA7EF\u661FB\u306E\u3088\u3046\u306A\u4EE5\u524D\u306F\u6052\u661F\u306B\u5206\u985E\u3055\u308C\u3066\u3044\u305F\u8910\u8272\u77EE\u661F\u3084\u60D1\u661F\u8CEA\u91CF\u5929\u4F53\u304C\u5206\u985E\u3055\u308C\u308B\u3002 \u4E9C\u6052\u661F\u5929\u4F53\u304C\u592A\u967D\u3068\u540C\u3058\u3088\u3046\u306A\u7D44\u6210\u3092\u6301\u3061\u3001\u5C11\u306A\u304F\u3068\u3082\u6728\u661F\u8CEA\u91CF\uFF08\u7D0410-3\u592A\u967D\u8CEA\u91CF\uFF09\u3088\u308A\u306F\u5927\u304D\u3044\u3068\u4EEE\u5B9A\u3059\u308B\u3068\u3001\u305D\u306E\u534A\u5F84\u306F\u6728\u661F\u534A\u5F84\u7A0B\u5EA6\uFF08\u7D040.1\u592A\u967D\u534A\u5F84\uFF09\u3068\u306A\u308B\u3002\u6C34\u7D20\u71C3\u713C\u9650\u754C\u306B\u308F\u305A\u304B\u306B\u8DB3\u308A\u306A\u3044\u8CEA\u91CF\u306E\u4E9C\u6052\u661F\u5929\u4F53\u306E\u4E2D\u5FC3\u90E8\u306F\u3001\u5BC6\u5EA6\u304C\u2248103 g/cm3\u306E\u30D5\u30A7\u30EB\u30DF\u7E2E\u9000\u7269\u8CEA\u3068\u306A\u3063\u3066\u3044\u308B\u304C\u3001\u3053\u306E\u7E2E\u9000\u306E\u5EA6\u5408\u3044\u306F\u3001\u6728\u661F\u7A0B\u5EA6\u306E\u8CEA\u91CF\u3067\u4E2D\u5FC3\u306E\u5BC6\u5EA6\u304C10g/cm3\u306B\u306A\u308B\u307E\u3067\u8CEA\u91CF\u306E\u4F4E\u4E0B\u3068\u3068\u3082\u306B\u6E1B\u5C11\u3059\u308B\u3002\u5BC6\u5EA6\u306E\u6E1B\u5C11\u306F\u8CEA\u91CF\u306E\u6E1B\u5C11\u3068\u91E3\u308A\u5408\u3063\u3066\u304A\u308A\u3001\u534A\u5F84\u306F\u304A\u304A\u3088\u305D\u4E00\u5B9A\u306B\u4FDD\u305F\u308C\u308B\u3002 \u6C34\u7D20\u71C3\u713C\u9650\u754C\u306B\u308F\u305A\u304B\u306B\u8DB3\u308A\u306A\u3044\u8CEA\u91CF\u306E\u4E9C\u6052\u661F\u5929\u4F53\u306F\u3001\u4E00\u6642\u7684\u306B\u4E2D\u5FC3\u3067\u6C34\u7D20\u6838\u878D\u5408\u304C\u59CB\u307E\u308B\u3053\u3068\u304C\u3042\u308B\u304C\u3001\u3044\u304F\u3089\u304B\u306E\u30A8\u30CD\u30EB\u30AE\u30FC\u3092\u751F\u7523\u3057\u305F\u3068\u3057\u3066\u3082\u3001\u5929\u4F53\u306E\u306B\u6253\u3061\u514B\u3064\u307B\u3069\u3067\u306F\u306A\u3044\u3002\u8CEA\u91CF\u304C\u7D040.013\u592A\u967D\u8CEA\u91CF\u3092\u8D85\u3048\u308B\u5929\u4F53\u306F\u3001\u4E00\u6642\u7684\u306B\u91CD\u6C34\u7D20\u306E\u6838\u878D\u5408\u3092\u884C\u3046\u3053\u3068\u304C\u3067\u304D\u308B\u304C\u3001\u91CD\u6C34\u7D20\u306F106\u304B\u3089108\u5E74\u3067\u6D88\u8CBB\u3057\u5C3D\u304F\u3055\u308C\u3066\u3057\u307E\u3046\u3002\u3053\u308C\u4EE5\u5916\u3067\u306F\u3001\u5358\u72EC\u306E\u4E9C\u6052\u661F\u5929\u4F53\u304B\u3089\u306E\u653E\u5C04\u306F\u91CD\u529B\u4F4D\u7F6E\u30A8\u30CD\u30EB\u30AE\u30FC\u306E\u653E\u51FA\u3060\u3051\u3067\u3042\u308A\u3001\u3053\u308C\u306B\u3088\u308A\u5F90\u3005\u306B\u51B7\u305F\u304F\u306A\u308A\u3001\u7E2E\u3080\u3002\u6052\u661F\u306E\u5468\u308A\u3092\u516C\u8EE2\u3059\u308B\u4E9C\u6052\u661F\u5929\u4F53\u306E\u8ECC\u9053\u306F\u5F90\u3005\u306B\u7E2E\u3093\u3067\u6052\u661F\u306B\u3088\u3063\u3066\u6E29\u3081\u3089\u308C\u3001\u653E\u5C04\u5E73\u8861\u306B\u9054\u3059\u308B\u3068\u3001\u6052\u661F\u304B\u3089\u53D7\u3051\u308B\u3088\u308A\u3082\u591A\u304F\u306E\u30A8\u30CD\u30EB\u30AE\u30FC\u3092\u653E\u51FA\u3059\u308B\u3088\u3046\u306B\u306A\u308B\u3002 \u30AA\u30C3\u30AF\u30B9\u30D5\u30A9\u30FC\u30C9\u5929\u6587\u5B66\u8F9E\u5178\u306B\u3088\u308C\u3070\u3001\u300C\u4E9C\u6052\u661F\u5929\u4F53\u300D\u3068\u3044\u3046\u7528\u8A9E\u306F\u307B\u3068\u3093\u3069\u4F7F\u7528\u3055\u308C\u3066\u3044\u306A\u3044\u3001\u3068\u3057\u3066\u3044\u308B\u3002"@ja . . . . . . . "\u4E9A\u6052\u661F\u5929\u4F53\uFF0C\u4E5F\u88AB\u79F0\u4E3A\u4E9A\u6052\u661F\uFF0C\u662F\u4E00\u7C7B\u8D28\u91CF\u5C0F\u4E8E\u6052\u661F\u7684\u8D28\u91CF\u4E0B\u9650\u7684\u5929\u4F53\u3002\u6046\u661F\u8CEA\u91CF\u4E0B\u9650\u7D040.08M\u2609\uFF08\u7D0480\u500D\u6728\u661F\u8CEA\u91CF\uFF09\uFF0C\u5929\u4F53\u7684\u8D28\u91CF\u53EA\u6709\u8FBE\u5230\u8BE5\u8D28\u91CF\u4E0B\u9650\uFF0C\u624D\u80FD\u591F\u7EF4\u6301\u5929\u4F53\u5185\u7684\u6C22\u805A\u53D8\u3002\u8BE5\u7C7B\u5929\u4F53\u5305\u62EC\uFF1A\u68D5\u77EE\u661F\u548C\u884C\u661F\u8CEA\u91CF\u9AD4\u2014\u2014\u5C3D\u7BA1\u8FD9\u4E24\u7C7B\u5929\u4F53\u7684\u5F62\u6210\u673A\u5236\u6709\u6240\u4E0D\u540C\uFF0C\u5176\u56DB\u5468\u662F\u5426\u5B58\u5728\u4E3B\u661F\u7684\u60C5\u51B5\u4E5F\u4E0D\u540C\u3002 \u5047\u8BBE\u4E00\u9897\u4E9A\u6052\u661F\u5929\u4F53\u7684\u7269\u8D28\u6784\u6210\u7C7B\u4F3C\u4E8E\u592A\u9633\uFF0C\u800C\u5176\u6700\u5C0F\u8D28\u91CF\u63A5\u8FD1\u4E8E\u6728\u661F\u8D28\u91CF\uFF08\u7EA6\u4E3A\u592A\u9633\u8D28\u91CF\u7684\u5343\u5206\u4E4B\u4E00\uFF09\uFF0C\u5219\u5176\u534A\u5F84\u5219\u4E5F\u5C06\u63A5\u8FD1\u4E8E\u6728\u661F\u534A\u5F84\uFF08\u7EA6\u4E3A\u592A\u9633\u534A\u5F84\u7684\u5341\u5206\u4E4B\u4E00\uFF09\u3002\u5F53\u4E00\u4E2A\u4E9A\u6052\u661F\u5929\u4F53\u6070\u597D\u5904\u4E8E\u89E6\u53D1\u6C22\u805A\u53D8\u7684\u4E34\u754C\u6761\u4EF6\u4E0B\u65F6\uFF0C\u5176\u5185\u6838\u7684\u7B80\u5E76\u538B\u7F29\u5C06\u5341\u5206\u5267\u70C8\uFF0C\u5BC6\u5EA6\u5C06\u8FBE\u5230\u7EA61\u5343\u514B/\u7ACB\u65B9\u5398\u7C73\uFF1B\u4F46\u662F\u968F\u7740\u4E9A\u6052\u661F\u5929\u4F53\u8D28\u91CF\u7684\u51CF\u5C0F\uFF0C\u5176\u5185\u6838\u5BC6\u5EA6\u4E5F\u5C06\u968F\u4E4B\u51CF\u5C0F\uFF0C\u5F53\u8D28\u91CF\u4EC5\u76F8\u5F53\u4E8E\u6728\u661F\u8D28\u91CF\u65F6\uFF0C\u5176\u5185\u6838\u5BC6\u5EA6\u5C06\u5C0F\u4E8E10\u514B/\u7ACB\u65B9\u5398\u7C73\u3002\u7531\u4E8E\u5929\u4F53\u5BC6\u5EA6\u7684\u51CF\u5C0F\u62B5\u6D88\u4E86\u5929\u4F53\u8D28\u91CF\u7684\u51CF\u5C0F\uFF0C\u6240\u4EE5\u4E9A\u6052\u661F\u5929\u4F53\u7684\u534A\u5F84\u80FD\u591F\u5927\u81F4\u4FDD\u6301\u6052\u5B9A\u3002 \u4E00\u4E2A\u8D28\u91CF\u6070\u597D\u5904\u4E8E\u89E6\u53D1\u6C22\u805A\u53D8\u7684\u4E34\u754C\u6761\u4EF6\u4E0B\u7684\u4E9A\u6052\u661F\u5929\u4F53\u7684\u5185\u6838\u4E5F\u53EF\u80FD\u80FD\u591F\u77ED\u6682\u7684\u53D1\u751F\u6C22\u805A\u53D8\u53CD\u5E94\u2014\u2014\u8FD9\u4E00\u53CD\u5E94\u5C06\u4F1A\u4E3A\u5929\u4F53\u63D0\u4F9B\u5C11\u91CF\u7684\u80FD\u91CF\u2014\u2014\u4F46\u662F\u5374\u4E0D\u8DB3\u4EE5\u514B\u670D\u5929\u4F53\u4E2D\u6301\u7EED\u8FDB\u884C\u7684\u5F15\u529B\u574D\u7F29\uFF1B\u540C\u6837\u7684\uFF0C\u867D\u7136\u4E00\u4E2A\u8D28\u91CF\u7565\u5927\u4E8E0.013M\u2609\u7684\u5929\u4F53\u80FD\u591F\u77ED\u6682\u7684\u89E6\u53D1\u6C18\u805A\u53D8\uFF0C\u4F46\u662F\u71C3\u6599\u4E5F\u5C06\u5728\u5927\u7EA6100\u4E07\u5E74\u81F31\u4EBF\u5E74\u95F4\u8017\u5C3D\u3002\u8FD9\u4E9B\u71C3\u6599\u8017\u5C3D\u4E4B\u540E\uFF0C\u4E9A\u6052\u661F\u5929\u4F53\u6240\u80FD\u4F7F\u7528\u7684\u80FD\u91CF\u5C06\u4EC5\u4EC5\u6765\u81EA\u4E8E\u5F15\u529B\u52BF\u80FD\uFF0C\u8FD9\u5C06\u5BFC\u81F4\u5929\u4F53\u9010\u6E10\u51B7\u5374\u548C\u6536\u7F29\u3002\u73AF\u7ED5\u6052\u661F\u8FD0\u884C\u7684\u4E9A\u6052\u661F\u5929\u4F53\u7531\u4E8E\u80FD\u591F\u63A5\u6536\u5230\u6052\u661F\u7684\u70ED\u91CF\uFF0C\u5176\u51B7\u5374\u6536\u7F29\u7684\u7684\u8FC7\u7A0B\u53EF\u80FD\u8F83\u4E3A\u7F13\u6162\uFF0C\u5E76\u5C06\u9010\u6E10\u8FBE\u5230\u4E00\u79CD\u8F90\u5C04\u51FA\u7684\u80FD\u91CF\u76F8\u5F53\u4E8E\u4ECE\u6052\u661F\u5904\u63A5\u6536\u7684\u80FD\u91CF\u7684\u5E73\u8861\u72B6\u6001\u3002"@zh . "\u062C\u0631\u0645 \u062F\u0648\u0646 \u0646\u062C\u0645\u064A (\u0628\u0627\u0644\u0625\u0646\u062C\u0644\u064A\u0632\u064A\u0629: Substellar object)\u200F \u064A\u0633\u0645\u0649 \u0623\u062D\u064A\u0627\u0646\u0627 \u0634\u0628\u0629 \u0646\u062C\u0645\u064A (substar) \u0647\u0648 \u062C\u0631\u0645 \u0641\u0644\u0643\u064A \u0643\u062A\u0644\u062A\u0647 \u0623\u0635\u063A\u0631 \u0645\u0646 \u0623\u0635\u063A\u0631 \u0643\u062A\u0644\u0629 \u064A\u0645\u0643\u0646 \u0641\u064A\u0647\u0627 \u062D\u062F\u0648\u062B \u0627\u0646\u062F\u0645\u0627\u062C \u0646\u0648\u0648\u064A (\u062D\u0648\u0627\u0644\u064A 0.08 \u0643\u062A\u0644\u0629 \u0634\u0645\u0633\u064A\u0629). \u0648\u064A\u0634\u0645\u0644 \u0647\u0630\u0627 \u0627\u0644\u062A\u0639\u0631\u064A\u0641 \u0627\u0644\u0623\u0642\u0632\u0627\u0645 \u0627\u0644\u0628\u0646\u064A\u0629 \u0648\u0627\u0644\u0623\u0642\u0632\u0627\u0645 \u0627\u0644\u0633\u0648\u062F\u0627\u0621 \u0648\u0627\u0644\u0628\u0642\u0627\u064A\u0627 \u0627\u0644\u0646\u062C\u0645\u064A\u0629 \u0627\u0644\u0645\u0634\u0627\u0628\u0647\u0629 \u0644\u0644\u062C\u0631\u0645 EF Eridani B \u062D\u0648\u0644 \u0646\u062C\u0645 EF \u0627\u0644\u0646\u0647\u0631 \u060C \u0648\u064A\u0645\u0643\u0646 \u0623\u0646 \u062A\u0634\u0645\u0644 \u0623\u064A\u0636\u0627 \u0623\u062C\u0631\u0627\u0645 \u0627\u0643\u062A\u0644 \u0627\u0644\u0643\u0648\u0643\u0628\u064A\u0629 \u0628\u063A\u0636 \u0627\u0644\u0646\u0638\u0631 \u0639\u0646 \u0622\u0644\u064A\u0629 \u062A\u0634\u0643\u064A\u0644\u0647\u0627 \u0648\u0645\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646\u062A \u0645\u0631\u062A\u0628\u0637\u0629 \u0628\u0646\u062C\u0645 \u0631\u0626\u064A\u0633\u064A \u0623\u0645 \u0644\u0627."@ar . "Un oggetto substellare \u00E8 un oggetto astronomico la cui massa \u00E8 inferiore a quella delle stelle pi\u00F9 piccole. Un oggetto substellare ha quindi una massa inferiore a quella necessaria per sostenere la fusione dell'idrogeno, che \u00E8 pari a circa 0,08 masse solari. Questa definizione comprende le nane brune, le ex stelle simili a EF Eridani B, ed include anche oggetti di massa planetaria, indipendentemente dal loro meccanismo di formazione e dal loro essere associati o meno ad una stella. Assumendo che un oggetto substellare abbia una composizione simile a quella del Sole, ed almeno la massa di Giove (circa 10-3 M\u2299), il suo raggio sar\u00E0 paragonabile a quello di Giove stesso (circa 0,1 R\u2299), indipendentemente dalla sua massa. Questo \u00E8 dovuto al fatto che nel centro di un oggetto appena sotto il limite di massa necessario per fondere l'idrogeno, la materia \u00E8 in uno stato piuttosto degenere, con una densit\u00E0 di \u2248 103 g/cm3; tuttavia questa degenerazione diminuisce al diminuire della massa dell'oggetto, fintanto che, alla massa di Giove, un oggetto substellare ha una densit\u00E0 centrale inferiore a 10 g/cm3. La diminuzione di densit\u00E0 bilancia la diminuzione di massa, e questo mantiene il raggio dell'oggetto pi\u00F9 o meno costante. Un oggetto substellare con massa appena sotto il limite di 0,08 masse solari potrebbe innescare temporaneamente la fusione dell'idrogeno nel suo nucleo; tuttavia, anche se per un certo periodo questo fornir\u00E0 un po' di energia, questa non sar\u00E0 sufficiente per superare la contrazione gravitazionale dell'oggetto. Allo stesso modo, anche se un oggetto con massa superiore a circa 0,013 masse solari \u00E8 in grado di fondere deuterio per un certo tempo, questa fonte di energia si esaurir\u00E0 in un periodo che va dai 10 milioni di anni, per le nane brune meno massicce, ad un periodo di 1 miliardo di anni per le pi\u00F9 massicce. Oltre a queste fonti, la radiazione di un oggetto substellare isolato proviene dal solo rilascio della sua energia potenziale gravitazionale, e col tempo l'oggetto tender\u00E0 gradualmente a raffreddarsi. Un oggetto substellare che orbita attorno ad una stella si raffredder\u00E0 pi\u00F9 lentamente in quanto riceve calore da essa, evolvendosi verso uno stato di equilibrio nel quale emetter\u00E0 pi\u00F9 energia di quella ricevuta dalla stella."@it . "A substellar object, sometimes called a substar, is an astronomical object whose mass is smaller than the smallest mass at which hydrogen fusion can be sustained (approximately 0.08 solar masses). This definition includes brown dwarfs and former stars similar to EF Eridani B, and can also include objects of planetary mass, regardless of their formation mechanism and whether or not they are associated with a primary star. Substellar objects like brown dwarfs do not have enough mass to fuse hydrogen and helium, hence do not undergo the usual stellar evolution that limits the lifetime of stars."@en . . "A substellar object, sometimes called a substar, is an astronomical object whose mass is smaller than the smallest mass at which hydrogen fusion can be sustained (approximately 0.08 solar masses). This definition includes brown dwarfs and former stars similar to EF Eridani B, and can also include objects of planetary mass, regardless of their formation mechanism and whether or not they are associated with a primary star. Assuming that a substellar object has a composition similar to the Sun's and at least the mass of Jupiter (approximately 10\u22123 solar masses), its radius will be comparable to that of Jupiter (approximately 0.1 solar radii) regardless of the mass of the substellar object (brown dwarfs are less than 75 Jupiter masses). This is because the center of such a substellar object at the top range of the mass (just below the hydrogen-burning limit) is quite degenerate, with a density of \u2248103 g/cm3, but this degeneracy lessens with decreasing mass until, at the mass of Jupiter, a substellar object has a central density less than 10 g/cm3. The density decrease balances the mass decrease, keeping the radius approximately constant. Substellar objects like brown dwarfs do not have enough mass to fuse hydrogen and helium, hence do not undergo the usual stellar evolution that limits the lifetime of stars. A substellar object with a mass just below the hydrogen-fusing limit may ignite hydrogen fusion temporarily at its center. Although this will provide some energy, it will not be enough to overcome the object's ongoing gravitational contraction. Likewise, although an object with mass above approximately 0.013 solar masses will be able to fuse deuterium for a time, this source of energy will be exhausted in approximately 106 to 108 years (1\u2013100 million years). Apart from these sources, the radiation of an isolated substellar object comes only from the release of its gravitational potential energy, which causes it to gradually cool and shrink. A substellar object in orbit about a star will shrink more slowly as it is kept warm by the star, evolving towards an equilibrium state where it emits as much energy as it receives from the star. Substellar objects are cool enough to have water vapor in their atmosphere. Infrared spectroscopy can detect the distinctive color of water in gas giant size substellar objects, even if they are not in orbit about a star."@en . . . . . . .