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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We present theoretical predictions for the free-free emission at cmwavelengths obtained from photoevaporation and MHD wind disk models adjusted tothe case of the TW Hydrae young stellar object. For this system, diskphotoevaporation with heating due to the high-energy photons from the star hasbeen proposed as a possible mechanism to open the gap observed in the dustemission with ALMA. We show that the photoevaporation disk model predicts aradial profile for the free-free emission that is made of two main spatialcomponents, one originated from the bound disk atmosphere at 0.5-1 au from thestar, and another more extended component from the photoevaporative wind atlarger disk radii. We also show that the stellar X-ray luminosity has asignificant impact on both these components. The predicted radio emission fromthe MHD wind model has a smoother radial distribution which extends to closerdistances to the star than the photoevaporation case. We also show that afuture radio telescope such as the \textit{Next Generation Very Large Array}(ngVLA) would have enough sensitivity and angular resolution to spatiallyresolve the main structures predicted by these models.

Testing photoevaporation and MHD disk wind models through future high-angular resolution radio observations: the case of TW Hydrae