Bibliographic Details
| Title: |
A High-mass, Young Star-forming Core Escaping from Its Parental Filament |
| Authors: |
Zhiyuan Ren, Xi Chen, Tie Liu, Emma Mannfors, Leonardo Bronfman, Fengwei Xu, Siyi Feng, Hongli Liu, Fanyi Meng, Amelia M. Stutz, Shanghuo Li, Chang Won Lee, Ke Wang, Jianwen Zhou, Di Li, Chen Wang, Chakali Eswaraiah, Anandmayee Tej, Long-Fei Chen, Hui Shi |
| Source: |
The Astrophysical Journal, Vol 955, Iss 2, p 104 (2023) |
| Publisher Information: |
IOP Publishing, 2023. |
| Publication Year: |
2023 |
| Collection: |
LCC:Astrophysics |
| Subject Terms: |
Star formation, Young stellar objects, Dense interstellar clouds, Interstellar filaments, Gravitational collapse, Astrophysics, QB460-466 |
| More Details: |
We studied the unique kinematic properties in massive filament G352.63-1.07 at 10 ^3 au spatial scale with the dense molecular tracers observed with the Atacama Large Millimeter/submillimeter Array. We find the central massive core M1 (12 M _⊙ ) being separated from the surrounding filament with a velocity difference of $v-{\overline{v}}_{\mathrm{sys}}=-2\,\mathrm{km}\,{{\rm{s}}}^{-1}$ and a transverse separation within 3″. Meanwhile, as shown in multiple dense-gas tracers, M1 has a spatial extension closely aligned with the main filament and is connected to the filament toward both its ends. M1 thus represents a very beginning state for a massive, young star-forming core escaping from the parental filament, within a timescale of ∼4000 yr. Based on its kinetic energy (3.5 × 10 ^44 erg), the core escape is unlikely solely due to the original filament motion or magnetic field but requires more energetic events such as a rapid intense anisotropic collapse. The released energy also seems to noticeably increase the environmental turbulence. This may help the filament to become stabilized again. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
1538-4357 |
| Relation: |
https://doaj.org/toc/1538-4357 |
| DOI: |
10.3847/1538-4357/aced54 |
| Access URL: |
https://doaj.org/article/c7bc31c3842a4cf5b5a6e71f28bb9065 |
| Accession Number: |
edsdoj.7bc31c3842a4cf5b5a6e71f28bb9065 |
| Database: |
Directory of Open Access Journals |
