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

Planet-forming circumstellar disks are a fundamental part of the starformation process. Since stars form in a hierarchical fashion in groups of upto hundreds or thousands, the UV radiation environment that these disks areexposed to can vary in strength by at least six orders of magnitude. Thisradiation can limit the masses and sizes of the disks. Diversity in starforming environments can have long lasting effects in disk evolution and in theresulting planetary populations. We perform simulations to explore theevolution of circumstellar disks in young star clusters. We include viscousevolution, as well as the impact of dynamical encounters and externalphotoevaporation. We find that photoevaporation is an important process indestroying circumstellar disks: in regions of stellar density $\rho \sim 100\mathrm{\ M}_\odot \mathrm{\ pc}^{-3}\mathrm{\ }$ around 80% of disks aredestroyed before 2 Myr of cluster evolution. Our findings are in agreement withobserved disk fractions in young star forming regions and support previousestimations that planet formation must start in timescales < 0.1 - 1 Myr.

External photoevaporation of circumstellar disks constrains the timescale for planet formation