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 Plus annual

Presents the access of premium content as premium feature

Premium Content

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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Accretion of stars on massive black holes (MBHs) can feed MBHs and generatetidal disruption events (TDEs). We introduce a new physically motivated modelto self-consistently treat TDEs in cosmological simulations, and apply it tothe assembly of a galaxy with final mass $3\times 10^{10}\mathrm{\, M}_\odot$at $z=6$. This galaxy exhibits a TDE rate of $\sim 10^{-5}\mathrm{\, yr}^{-1}$,consistent with local observations but already in place when the Universe wasone billion year old. A fraction of the disrupted stars participate in thegrowth of MBHs, dominating it until the MBH reaches mass $\sim 5 \times 10^5\mathrm{\, M}_\odot$, but their contribution then becomes negligible comparedto gas. TDEs could be a viable mechanism to grow light MBH seeds, but fewerTDEs are expected when the MBH becomes sufficiently massive to reach theluminosity of, and be detected as, an active galactic nucleus. Galaxy mergersbring multiple MBHs in the galaxy, resulting in an enhancement of the globalTDE rate in the galaxy by $\sim 1$ order of magnitude during $100\mathrm{\,Myr}$ around mergers. This enhancement is not on the central MBH, but caused bythe presence of MBHs in the infalling galaxies. This is the first selfconsistent study of TDEs in a cosmological environment and highlights thataccretion of stars and TDEs are a natural process occurring in a Milky~Way-massgalaxy at early cosmic times.

Tidal disruption events in the first billion years of a galaxy