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

We present a high resolution simulation of an idealized model to explain theorigin of the two young, counter-rotating, sub-parsec scale stellar disksaround the supermassive black hole SgrA* at the Center of the Milky Way. In ourmodel, the collision of a single molecular cloud with a circum-nuclear gas disk(similar to the one observed presently) leads to multiple streams of gasflowing towards the black hole and creating accretion disks with angularmomentum depending on the ratio of cloud and circum-nuclear disk material. Theinfalling gas creates two inclined, counter-rotating sub-parsec scale accretiondisks around the supermassive black hole with the first disk forming roughly 1Myr earlier, allowing it to fragment into stars and get dispersed before thesecond, counter-rotating disk forms. Fragmentation of the second disk wouldlead to the two inclined, counter-rotating stellar disks which are observed atthe Galactic Center. A similar event might be happening again right now at theMilky Way Galactic Center. Our model predicts that the collision eventgenerates spiral-like filaments of gas, feeding the Galactic Center prior todisk formation with a geometry and inflow pattern that is in agreement with thestructure of the so called mini-spiral that has been detected in the GalacticCenter.

Numerical simulations of the possible origin of the two sub-parsec scale and counter-rotating stellar disks around SgrA*