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Frankfurt Institute for Advanced Studies (FIAS) Ruth-Moufang-Str. 1 60438 Frankfurt am Main, Germany http://www.fias.uni-frankfurt.de
Contact Mr Prof. Luciano Rezzolla +49 69 79847871
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Frankfurt Institute for Advanced Studies (FIAS)

Wie schwer sind Neutronensterne?

Astrophysiker des FIAS und der Goethe-Universität finden neue Obergrenze für die Masse von Neutronensternen heraus: Sie darf nicht größer als 2,16 Sonnenmassen sein

(PresseBox) (Frankfurt am Main, )
Seit der Entdeckung von Neutronensternen in den 1960er Jahren fragen sich Wissenschaftler, wie schwer können diese massereichen Sterne werden? Im Unterschied zu schwarzen Löchern können sie nicht beliebig viel Masse zulegen; wird eine bestimmte Massengrenze überschritten, gibt es im Universum keine physikalische Kraft mehr, die der enormen Gravitation entgegenwirken kann. Astrophysikern der Goethe-Universität Frankfurt ist es nun erstmals gelungen eine strenge obere Grenze für diese maximale Masse von Neutronensternen zu berechnen.

Mit einem Radius von ungefähr zwölf Kilometern und einer Masse, die doppelt so groß werden kann wie die der Sonne, zählen Neutronensterne zu den dichtesten Objekten im Universum.
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