oai:arXiv.org:2410.18033
ciencias: astrofísica
2024
30/10/2024
Radially extended disk winds could be the key to unlocking how protoplanetary disks accrete and how planets form and migrate.
A distinctive characteristic is their nested morphology of velocity and chemistry.
Here we report JWST/NIRSpec spectro-imaging of four young stars with edge-on disks in the Taurus star-forming region that demonstrate the ubiquity of this structure.
In each source, a fast collimated jet traced by [Fe II] is nested inside a hollow cavity within wider lower-velocity H2 and, in one case, also CO ro-vibrational (v=1-0) emission.
Furthermore, in one of our sources, ALMA CO(2-1) emission, paired with our NIRSpec images, reveals the nested wind structure extends further outward.
This nested wind morphology strongly supports theoretical predictions for wind-driven accretion and underscores the need for theoretical work to assess the role of winds in the formation and evolution of planetary systems ;Comment: This preprint has not undergone peer review or any post-submission improvements or corrections.
The Version of Record of this article is published in Nature Astronomy and is available online at https://doi.org/10.1038/s41550-024-02385-7
Pascucci, Ilaria,Beck, Tracy L.,Cabrit, Sylvie,Bajaj, Naman S.,Edwards, Suzan,Louvet, Fabien,Najita, Joan,Skinner, Bennett N.,Gorti, Uma,Salyk, Colette,Brittain, Sean D.,Krijt, Sebastiaan,Page, James Muzerolle,Ruaud, Maxime,Schwarz, Kamber,Semenov, Dmitry,Duchene, Gaspard,Villenave, Marion, 2024, JWST/NIRSpec Reveals the Nested Morphology of Disk Winds from Young Stars