The nested morphology of disk winds from young stars revealed by JWST/NIRSpec observations

被引：6

作者：

Ilaria Pascucci ^{[1
]}

Tracy L. Beck ^{[2
]}

Sylvie Cabrit ^{[3
]}

Naman S. Bajaj ^{[4
]}

Suzan Edwards ^{[1
]}

Fabien Louvet ^{[5
]}

Joan R. Najita ^{[4
]}

Bennett N. Skinner ^{[6
]}

Uma Gorti ^{[1
]}

Colette Salyk ^{[7
]}

Sean D. Brittain ^{[8
]}

Sebastiaan Krijt ^{[9
]}

James Muzerolle Page ^{[10
]}

Maxime Ruaud ^{[11
]}

Kamber Schwarz ^{[12
]}

Dmitry Semenov ^{[2
]}

Gaspard Duchêne ^{[8
]}

Marion Villenave ^{[13
]}

机构：

[1] The University of Arizona,Lunar and Planetary Laboratory

[2] Space Telescope Science Institute,Instruments Division

[3] Sorbonne Université,Observatoire de Paris

[4] LERMA, PSL University

[5] CNRS,Univ. Grenoble Alpes, CNRS

[6] IPAG,Five College Astronomy Department

[7] Smith College,NSF

[8] NOIRLab,Department of Physics and Astronomy

[9] McMaster University,Carl Sagan Center

[10] SETI Institute,Ames Research Center

[11] NASA,Department of Physics and Astronomy

[12] Vassar College,Department of Physics and Astronomy

[13] Clemson University,Department of Physics and Astronomy

[14] University of Exeter,Department of Chemistry

[15] Max-Planck-Institut für Astronomie,Department of Astronomy

[16] Ludwig-Maximilians-Universität,Dipartimento di Fisica

[17] University of California,undefined

[18] Università degli Studi di Milano,undefined

来源：

Nature Astronomy | 2025年 / 9卷 / 1期

关键词：

D O I：

10.1038/s41550-024-02385-7

中图分类号：

学科分类号：

摘要：

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 James Webb Space Telescope near-infrared spectrograph spectro-imaging of four young stars with edge-on disks, three of which have already dispersed their natal envelopes. For each source, a fast collimated jet traced by [Fe ii] is nested inside a hollow cavity within wider lower-velocity H2. In one case, a hollow structure is also seen in CO ro-vibrational (v = 1 → 0) emission but with a wider opening angle than the H2, and both of those are nested inside an Atacama Large Millimeter Array CO (J = 2 → 1) cone with an even wider opening angle. This nested morphology, even for sources with no envelope, 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.

引用

页码：81 / 89

页数：8

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