Gravitational stability and fragmentation condition for discs around accreting supermassive stars

Ryoki Matsukoba, Sanemichi Z. Takahashi, Kazuyuki Sugimura +1

Supermassive stars (SMSs) with mass $\sim 10^5{\mathrm{M}}_{\odot }$ are promising candidates for the origin of supermassive black holes observed at redshift $\gtrsim 6$. They are suppos…