English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

We investigate the effect of conductive heating of the gas surrounding ageometrically thick accretion disk on the growth of a black hole at highredshift. If a black hole is accreting the surrounding gas at a super-Eddingtonrate, the X-ray radiation from the vicinity of the black hole would be highlyanisotropic due to the self-shielding of a geometrically thick accretion disk,and then the radiative feedback on the surrounding medium would be suppressedin the equatorial region, within which super-Eddington accretion can continue.However, if this region is sufficiently heated via thermal conduction from theadjacent region that is not shielded and heated by the X-ray irradiation, thesurrounding gas becomes isotropically hot and the Bondi accretion rate would besuppressed and become sub-Eddington. We evaluate the condition under which suchisotropic heating is realized, and derive new criteria required forsuper-Eddington accretion.

Effects of Heat Conduction on Blocking off the Super-Eddington Growth of Black Holes at High Redshift