Función inversa
A black dwarf is a star white Naine which sufficiently cooled not to emit a Lumière more. No star of this type could be located, the age of the Univers being insufficient so that dwarf white had time to cool and be transformed into dwarf black.
Even at the time where the dwarf black ones will exist, it will be extremely difficult to detect them, because they will hardly emit a thermal radiation at a temperature above that of the fossil Rayonnement microwave. The only manner of detecting them will be by their influence nelle Gravitation, which it also will be weak because these stars have weak a Masse.
The dwarf black ones should not be confused with the brown dwarf which are, to some extent, of missed stars because they have a too low mass to start or maintain the reactions of nuclear Fusion which take place in true stars.
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