Fragmentation in Gravitationally Unstable Collapsar Disks and Subsolar Neutron Star Mergers

Although stable neutron stars (NSs) can in principle exist down to masses M _ns ≈ 0.1 M _⊙ , standard models of stellar core-collapse predict a robust lower limit M _ns ≳ 1.2 M _⊙ , roughly commensurate with the Chandrasekhar mass M _Ch of the progenitor’s iron core (electron fraction Y _e ≈ 0.5). H...

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Bibliographic Details
Main Authors: Brian D. Metzger, Lam Hui, Matteo Cantiello
Format: Article
Language:English
Published: IOP Publishing 2024-01-01
Series:The Astrophysical Journal Letters
Subjects:
Online Access:https://doi.org/10.3847/2041-8213/ad6990