Massive extended streamers feed high-mass young stars
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2025
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866908498630017024 |
|---|---|
| author | Olguin, Fernando A. Sanhueza, Patricio Ginsburg, Adam Chen, Huei-Ru Vivien Tanaka, Kei E. I. Lu, Xing Morii, Kaho Nakamura, Fumitaka Li, Shanghuo Cheng, Yu Zhang, Qizhou Luo, Qiuyi Oya, Yoko Sakai, Takeshi Saito, Masao Guzmán, Andrés E. |
| author_facet | Olguin, Fernando A. Sanhueza, Patricio Ginsburg, Adam Chen, Huei-Ru Vivien Tanaka, Kei E. I. Lu, Xing Morii, Kaho Nakamura, Fumitaka Li, Shanghuo Cheng, Yu Zhang, Qizhou Luo, Qiuyi Oya, Yoko Sakai, Takeshi Saito, Masao Guzmán, Andrés E. |
| contents | Stars are born in a variety of environments that determine how they gather gas to achieve their final masses. It is generally believed that disks are ubiquitous around protostars as a result of angular momentum conservation and are natural places to grow planets. As such, they are proposed to be the last link in the inflow chain from the molecular cloud to the star. However, disks are not the only form that inflows can take. Here we report on high-resolution observations performed with the Atacama Large Millimeter/submillimeter Array that reveal inflows in the form of streamers. These streamers persist well within the expected disk radius, indicating that they play a substitute role channeling material from the envelope directly to an unresolved small disk or even directly to the forming high-mass protostar. These flows are massive enough to feed the central unresolved region at a rate sufficient to quench the feedback effects of the young massive star. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_15889 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Massive extended streamers feed high-mass young stars Olguin, Fernando A. Sanhueza, Patricio Ginsburg, Adam Chen, Huei-Ru Vivien Tanaka, Kei E. I. Lu, Xing Morii, Kaho Nakamura, Fumitaka Li, Shanghuo Cheng, Yu Zhang, Qizhou Luo, Qiuyi Oya, Yoko Sakai, Takeshi Saito, Masao Guzmán, Andrés E. Astrophysics of Galaxies Solar and Stellar Astrophysics Stars are born in a variety of environments that determine how they gather gas to achieve their final masses. It is generally believed that disks are ubiquitous around protostars as a result of angular momentum conservation and are natural places to grow planets. As such, they are proposed to be the last link in the inflow chain from the molecular cloud to the star. However, disks are not the only form that inflows can take. Here we report on high-resolution observations performed with the Atacama Large Millimeter/submillimeter Array that reveal inflows in the form of streamers. These streamers persist well within the expected disk radius, indicating that they play a substitute role channeling material from the envelope directly to an unresolved small disk or even directly to the forming high-mass protostar. These flows are massive enough to feed the central unresolved region at a rate sufficient to quench the feedback effects of the young massive star. |
| title | Massive extended streamers feed high-mass young stars |
| topic | Astrophysics of Galaxies Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2508.15889 |